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                                                                     EXHIBIT 4.1

                             3DFX INTERACTIVE, INC.

                               EMPLOYEE STOCK PLAN
                    (AMENDED AND RESTATED AS OF MAY 1, 2000)

         1.       Purposes of the Plan.

         The purposes of this Stock Plan are to attract and retain the best
         available personnel for positions of substantial responsibility, to
         provide additional incentive to Employees and Consultants of the
         Company and its Subsidiaries and to promote the success of the
         Company's business. Options granted under the Plan may be Incentive
         Stock Options or Nonstatutory Stock Options, as determined by the
         Administrator at the time of grant of an option and subject to the
         applicable provisions of Section 422 of the Code, as amended, and the
         regulations promulgated thereunder. Stock Purchase Rights may also be
         granted under the Plan.

         2.       Definitions.

         As used herein, the following definitions shall apply:

                  (a) "Administrator" means the Board or any of its Committees
appointed pursuant to Section 4 of the Plan.

                  (b) "Applicable Laws" means the requirements relating to the
administration of stock option plans under U.S. state corporate laws, U.S.
federal and state securities laws, the Code, any stock exchange or quotation
system on which the Common Stock is listed or quoted and the applicable laws of
any foreign country or jurisdiction where Options are, or will be, granted under
the Plan.

                  (c) "Board" means the Board of Directors of the Company.

                  (d) "Code" means the Internal Revenue Code of 1986, as
amended.

                  (e) "Committee" means the committee appointed by the Board of
Directors in accordance with paragraph (a) of Section 4 of the Plan.

                  (f) "Common Stock" means the Common Stock of the Company.

                  (g) "Company" means 3dfx Interactive, Inc., a California
corporation.

                  (h) "Consultant" means any person, including an advisor, who
is engaged by the Company or any Parent or Subsidiary to render services and is
compensated for such services.

                  (i) "Continuous Status as an Employee" means the absence of
any interruption or termination of the employment relationship by the Company or
any Subsidiary. Continuous Status as an Employee shall not be considered
interrupted in the case of: (i) sick leave, military leave or any other leave of
absence approved by the Board, provided that such leave is for a period of not
more than ninety (90) days, unless reemployment upon the expiration of such
leave is guaranteed by contract or statute, or unless provided otherwise
pursuant to Company policy adopted from time to time; or (ii) in the case of
transfers between locations of the Company or between the Company, its
Subsidiaries or its successor.

                  (j) "Director" means a member of the Board.


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                  (k) "Employee" means any person, including officers and
directors, employed by the Company or any Parent or Subsidiary of the Company.
The payment of a director's fee by the Company shall not be sufficient to
constitute "employment" by the Company.

                  (l) "Exchange Act" means the Securities Exchange Act of 1934,
as amended.

                  (m) "Fair Market Value" means, as of any date, the value of
Common Stock determined as follows:

                           (1) If the Common Stock is listed on any established
stock exchange or a national market system, including without limitation the
Nasdaq National Market or The Nasdaq SmallCap Market of The Nasdaq Stock Market,
its Fair Market Value shall be the closing sales price for such stock (or the
closing bid, if no sales were reported) as quoted on such exchange or system for
the last market trading day prior to the time of determination, as reported in
The Wall Street Journal or such other source as the Administrator deems
reliable;

                           (2) If the Common Stock is regularly quoted by a
recognized securities dealer but selling prices are not reported, the Fair
Market Value of a Share of Common Stock shall be the mean between the high bid
and low asked prices for the Common Stock on the last market trading day prior
to the day of determination, as reported in The Wall Street Journal or such
other source as the Administrator deems reliable; or

                           (3) In the absence of an established market for the
Common Stock, the Fair Market Value shall be determined in good faith by the
Administrator.

                  (n) "Incentive Stock Option" means an Option intended to
qualify as an incentive stock option within the meaning of Section 422 of the
Code.

                  (o) "Nonstatutory Stock Option" means an Option not intended
to qualify as an Incentive Stock Option.

                  (p) "Option" means a stock option granted pursuant to the
Plan.

                  (q) "Optioned Stock" means the Common Stock subject to an
Option.

                  (r) "Optionee" means an Employee or Consultant who receives an
Option.

                  (s) "Parent" means a "parent corporation", whether now or
hereafter existing, as defined in Section 424(e) of the Code.

                  (t) "Plan" means this Employee Stock Plan, as amended from
time to time.

                  (u) "Share" means a share of the Common Stock, as adjusted in
accordance with Section 11 of the Plan.

                  (v) "Subsidiary" means a "subsidiary corporation", whether now
or hereafter existing, as defined in Section 424(f) of the Code.

         3. Stock Subject to the Plan.

         Subject to the provisions of Section 11 of the Plan, the maximum
         aggregate number of shares which may be optioned and sold under the
         Plan is 8,875,000 shares of Common Stock. The shares may be authorized,
         but unissued, or reacquired Common Stock.

         If an Option expires or becomes unexercisable without having been
         exercised in full, or is surrendered pursuant to an Option repricing or
         Option exchange, the unpurchased Shares which were subject thereto
         shall become available for future grant or sale under the Plan (unless
         the Plan has terminated); provided, however, that Shares that have
         actually been issued under the Plan upon exercise of an Option shall
         not be returned to the Plan


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         and shall not become available for future distribution under the Plan,
         except that if Shares of Restricted Stock are repurchased by the
         Company at their original purchase price, such Shares shall become
         available for future grant under the Plan.

         4. Administration of the Plan.

                  (a) Procedure.

                           (1) Multiple Administrative Bodies. The Plan may be
administered by different Committees with respect to different groups of
Employees and Consultants.

                           (2) Section 162(m). To the extent that the
Administrator determines it to be desirable to qualify Options granted hereunder
as "performance-based compensation" within the meaning of Section 162(m) of the
Code, the Plan shall be administered by a Committee of two or more "outside
directors" within the meaning of Section 162(m) of the Code.

                           (3) Rule 16b-3. To the extent desirable to qualify
transactions hereunder as exempt under Rule 16b-3, the transactions contemplated
hereunder shall be structured to satisfy the requirements for exemption under
Rule 16b-3.

                           (4) Other Administration. Other than as provided
above, the Plan shall be administered by (A) the Board or (B) a Committee, which
committee shall be constituted to satisfy Applicable Laws.

                  (b) Powers of the Administrator.

                  Subject to the provisions of the Plan and in the case of a
                  Committee, the specific duties delegated by the Board to such
                  Committee, the Administrator shall have the authority, in its
                  discretion:

                           (1) to determine the Fair Market Value;

                           (2) to select the Employees and Consultants to whom
Options may be granted hereunder;

                           (3) to determine the number of shares of Common Stock
to be covered by each Option granted hereunder;

                           (4) to approve forms of agreement for use under the
Plan;

                           (5) to determine the terms and conditions, not
inconsistent with the terms of the Plan, of any Option granted hereunder. Such
terms and conditions include, but are not limited to, the exercise price, the
time or times when Options may be exercised (which may be based on performance
criteria), any vesting acceleration or waiver of forfeiture restrictions, and
any restriction or limitation regarding any Option of the shares of Common Stock
relating thereto, based in each case on such factors as the Administrator, in
its sole discretion, shall determine;

                           (6) to reduce the exercise price of any Option to the
then current Fair Market Value if the Fair Market Value of the Common Stock
covered by such Option shall have declined since the date the Option was
granted;

                           (7) to institute an Option repricing or Option
exchange program;

                           (8) to construe and interpret the terms of the Plan
and awards granted pursuant to the Plan;

                           (9) to prescribe, amend and rescind rules and
regulations relating to the Plan, including rules and regulations relating to
sub-plans established for the purpose of qualifying for preferred tax treatment
under foreign tax laws;


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                           (10) to modify or amend each Option (subject to
Section 15(c) of the Plan), including the discretionary authority to extend the
post-termination exercisability period of Options longer than is otherwise
provided for in the Plan;

                           (11) to allow Optionees to satisfy withholding tax
obligations by electing to have the Company withhold from the Shares to be
issued upon exercise of an Option that number of Shares having a Fair Market
Value equal to the amount required to be withheld. The Fair Market Value of the
Shares to be withheld shall be determined on the date that the amount of tax to
be withheld is to be determined. All elections by an Optionee to have Shares
withheld for this purpose shall be made in such form and under such conditions
as the Administrator may deem necessary or advisable;

                           (12) to authorize any person to execute on behalf of
the Company any instrument required to effect the grant of an Option previously
granted by the Administrator; or

                           (13) to make all other determinations deemed
necessary or advisable for administering the Plan.

                  (c) Effect of Administrator's Decision. All decisions,
determinations and interpretations of the Administrator shall be final and
binding on all Optionees and any other holders of any Options.

         5. Eligibility.

                  (a) Nonstatutory Stock Options may be granted to Employees and
Consultants. Incentive Stock Options may be granted only to Employees. An
Employee or Consultant who has been granted an Option may, if he or she is
otherwise eligible, be granted an additional Option or Options.

                  (b) Each Option shall be designated in the written option
agreement as either an Incentive Stock Option or a Nonstatutory Stock Option.
However, notwithstanding such designations, to the extent that the aggregate
Fair Market Value of the Shares with respect to which Options designated as
Incentive Stock Options are exercisable for the first time by any Optionee
during any calendar year (under all plans of the Company or any Parent or
Subsidiary) exceeds $100,000, such excess Options shall be treated as
Nonstatutory Stock Options.

                  (c) For purposes of Section 5(b), Incentive Stock Options
shall be taken into account in the order in which they were granted, and the
Fair Market Value of the Shares shall be determined as of the time the Option
with respect to such Shares is granted.

                  (d) The Plan shall not confer upon any Optionee any right with
respect to continuation of the Optionee's employment or consulting relationship
with the Company, nor shall it interfere in any way with his right or the
Company's right to terminate the Optionee's employment or consulting
relationship at any time, with or without cause.

         6. Term of Plan.

         The Plan shall become effective upon the earlier to occur of its
         adoption by the Board of Directors or its approval by the shareholders
         of the Company as described in Section 18 of the Plan. It shall
         continue in effect for a term of ten (10) years unless sooner
         terminated under Section 14 of the Plan.

         7. Term of Option.

         The term of each Option shall be the term stated in the Option
         Agreement; provided, however, that in the case of an Incentive Stock
         Option, the term shall be no more than ten (10) years from the date of
         grant thereof or such shorter term as may be provided in the Option
         Agreement. However, in the case of an Option granted to an Optionee
         who, at the time the Option is granted, owns stock representing more
         than ten percent (10%) of the


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         voting power of all classes of stock of the Company or any Parent or
         Subsidiary, the term of the Option shall be five (5) years from the
         date of grant thereof or such shorter term as may be provided in the
         Option Agreement.

         8. Option Exercise Price and Consideration.

                  (a) The per share exercise price for the Shares to be issued
pursuant to exercise of an Option shall be such price as is determined by the
Board, but shall be subject to the following:

                           (1) In the case of an Incentive Stock Option


                                    (1) granted to an Employee who, at the time
of the grant of such Incentive Stock Option, owns stock representing more than
ten percent (10%) of the voting power of all classes of stock of the Company or
any Parent or Subsidiary, the per Share exercise price shall be no less than
110% of the Fair Market Value per Share on the date of grant.

                                    (2) granted to any other Employee, the per
Share exercise price shall be no less than 100% of the Fair Market Value per
Share on the date of grant.

                           (2) In the case of a Nonstatutory Stock Option, the
per Share exercise price shall be determined by the Administrator. In the case
of a Nonstatutory Stock Option intended to qualify as "performance-based
compensation" within the meaning of Section 162(m) of the Code, the per Share
exercise price shall be no less than 100% of the Fair Market Value per Share on
the date of grant.

                           (3) Notwithstanding the foregoing, Options may be
granted with a per Share exercise price of less than 100% of the Fair Market
Value per Share on the date of grant pursuant to a merger or other corporate
transaction.

                  (b) The consideration to be paid for the Shares to be issued
upon exercise of an Option, including the method of payment, shall be determined
by the Administrator (and, in the case of an Incentive Stock Option, shall be
determined at the time of grant) and may consist entirely of (i) cash, (ii)
check, (iii) other Shares which (x) in the case of Shares acquired upon exercise
of an Option either have been owned by the Optionee for more than six months on
the date of surrender or were not acquired, directly or indirectly, from the
Company, and (y) have a Fair Market Value on the date of surrender equal to the
aggregate exercise price of the Shares as to which said Option shall be
exercised, (iv) authorization from the Company to retain from the total number
of Shares as to which the Option is exercised that number of Shares having a
Fair Market Value on the date of exercise equal to the exercise price for the
total number of Shares as to which the Option is exercised, (v) delivery of a
properly executed exercise notice together with irrevocable instructions to a
broker to promptly deliver to the Company the amount of sale or loan proceeds
required to pay the exercise price, (vi) any combination of the foregoing
methods of payment, (viii) or such other consideration and method of payment
for the issuance of Shares to the extent permitted under Applicable Laws.

         9. Exercise of Option.

                  (a) Procedure for Exercise: Rights as a Shareholder. Any
Option granted hereunder shall be exercisable at such times and under such
conditions as determined by the Administrator, including performance criteria
with respect to the Company and/or the Optionee, and as shall be permissible
under the terms of the Plan.

                  An Option may not be exercised for a fraction of a Share.

                  An Option shall be deemed to be exercised when written notice
                  of such exercise has been given to the Company in accordance
                  with the terms of the Option by the person entitled to
                  exercise the Option and full payment for the Shares with
                  respect to which the Option is exercised has been received by
                  the Company. Full payment may, as authorized by the Board,
                  consist of any consideration and method of payment allowable
                  under Section 8(b) of the Plan. Until the issuance (as
                  evidenced by the appropriate entry on the books of the Company
                  or of a duly authorized transfer agent of the Company) of the
                  stock certificate evidencing such Shares, no right to vote or
                  receive dividends or any other rights as a shareholder shall
                  exist with respect to the Optioned Stock, notwithstanding the
                  exercise of the Option.


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                  The Company shall issue (or cause to be issued) such stock
                  certificate promptly upon exercise of the Option. No
                  adjustment will be made for a dividend or other right for
                  which the record date is prior to the date the stock
                  certificate is issued, except as provided in Section 11 of the
                  Plan.

                  Exercise of an Option in any manner shall result in a decrease
                  in the number of Shares which thereafter may be available,
                  both for purposes of the Plan and for sale under the Option,
                  by the number of Shares as to which the Option is exercised.

                  (b) Termination of Employment. In the event of termination of
an Optionee's consulting relationship or Continuous Status as an Employee with
the Company (but not upon a change of status from an Employee to Consultant or
Consultant to Employee), such Optionee may, but only within the period stated in
the Option Agreement (which, in the case of an Incentive Stock Option, shall be
no more than ninety (90) days after the date of such termination and, in the
case of any Option, shall be no later than the expiration date of the term of
such Option as set forth in the Option Agreement), exercise the Option to the
extent that Optionee was entitled to exercise it at the date of such
termination. To the extent that Optionee was not entitled to exercise the Option
at the date of such termination, or if Optionee does not exercise such Option to
the extent so entitled within the time specified herein, the Option shall
terminate.

                  (c) Disability of Optionee. Notwithstanding the provisions of
Section 9(b) above, in the event of termination of an Optionee's Consulting
relationship or Continuous Status as an Employee as a result of his or her total
and permanent disability (as defined in Section 22(e)(3) of the Code), Optionee
may, but only within twelve (12) months from the date of such termination (but
in no event later than the expiration date of the term of such Option as set
forth in the Option Agreement), exercise the Option to the extent otherwise
entitled to exercise it at the date of such termination. To the extent that
Optionee is not entitled to exercise the Option at the date of termination, or
if Optionee does not exercise such Option to the extent so entitled within the
time specified herein, the Option shall terminate.

                  (d) Death of Optionee. In the event of the death of an
Optionee, the Option may be exercised, at any time within twelve (12) months
following the date of death (but in no event later than the expiration date of
the term of such Option as set forth in the Option Agreement), by the Optionee's
estate or by a person who acquired the right to exercise the Option by bequest
or inheritance, but only to the extent the Optionee is entitled to exercise the
Option on the date of death. To the extent that Optionee is not entitled to
exercise the Option on the date of death, or if the Option is not exercised to
the extent so exercisable within the time specified herein, the Option shall
terminate.

         10. Non-Transferability of Options.

         Unless determined otherwise by the Administrator, an Option may not be
         sold, pledged, assigned, hypothecated, transferred, or disposed of in
         any manner other than by will or by the laws of descent or distribution
         and may be exercised, during the lifetime of the Optionee, only by the
         Optionee. If the Administrator makes an Option transferable, such
         Option shall contain such additional terms and conditions as the
         Administrator deems appropriate.

         11. Adjustments Upon Changes in Capitalization or Merge.

                  (a) Changes in Capitalization. Subject to any required action
by the shareholders of the Company, the number of shares of Common Stock covered
by each outstanding Option, and the number of shares of Common Stock which have
been authorized for issuance under the Plan but as to which no Options have yet
been granted or which have been returned to the Plan upon cancellation or
expiration of an Option, as well as the price per share of Common Stock covered
by each such outstanding Option, shall be proportionately adjusted for any
increase or decrease in the number of issued shares of Common Stock resulting
from a stock split, reverse stock split, stock dividend, combination or
reclassification of the Common Stock, or any other increase or decrease in the
number of issued shares of Common Stock effected without receipt of
consideration by the Company; provided, however, that conversion of any
convertible securities of the Company shall not be deemed to have been "effected
without receipt of consideration." Such adjustment shall be made by the Board,
whose determination in that respect shall be final, binding and conclusive.
Except as expressly provided herein, no issuance by the Company of shares of
stock of any class, or securities convertible into


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shares of stock of any class, shall affect, and no adjustment by reason thereof
shall be made with respect to, the number or price of shares of Common Stock
subject to an Option.

                  (b) Dissolution or Liquidation. In the event of the proposed
dissolution or liquidation of the Company, the Administrator shall notify each
Optionee as soon as practicable prior to the effective date of such proposed
transaction. The Administrator in its discretion may provide for an Optionee to
have the right to exercise his or her Option until ten (10) days prior to such
transaction as to all of the Optioned Stock covered thereby, including Shares as
to which the Option would not otherwise be exercisable. In addition, the
Administrator may provide that any Company repurchase option applicable to any
Shares purchased upon exercise of an Option shall lapse as to all such Shares,
provided the proposed dissolution or liquidation takes place at the time and in
the manner contemplated. To the extent it has not been previously exercised, an
Option will terminate immediately prior to the consummation of such proposed
action.

                  (c) Merger or Asset Sale. In the event of a merger of the
Company with or into another corporation, or the sale of substantially all of
the assets of the Company, each outstanding Option shall be assumed or an
equivalent option or right substituted by the successor corporation or a Parent
or Subsidiary of the successor corporation. In the event that the successor
corporation refuses to assume or substitute for the Option, the Optionee shall
fully vest in and have the right to exercise the Option as to all of the
Optioned Stock, including Shares as to which it would not otherwise be vested or
exercisable. If an Option becomes fully vested and exercisable in lieu of
assumption or substitution in the event of a merger or sale of assets, the
Administrator shall notify the Optionee in writing or electronically that the
Option shall be fully vested and exercisable for a period of fifteen (15) days
from the date of such notice, and the Option shall terminate upon the expiration
of such period. For the purposes of this paragraph, the Option shall be
considered assumed if, following the merger or sale of assets, the option or
right confers the right to purchase or receive, for each Share of Optioned Stock
subject to the Option immediately prior to the merger or sale of assets, the
consideration (whether stock, cash, or other securities or property) received in
the merger or sale of assets by holders of Common Stock for each Share held on
the effective date of the transaction (and if holders were offered a choice of
consideration, the type of consideration chosen by the holders of a majority of
the outstanding Shares); provided, however, that if such consideration received
in the merger or sale of assets is not solely common stock of the successor
corporation or its Parent, the Administrator may, with the consent of the
successor corporation, provide for the consideration to be received upon the
exercise of the Option, for each Share of Optioned Stock subject to the Option,
to be solely common stock of the successor corporation or its Parent equal in
fair market value to the per share consideration received by holders of Common
Stock in the merger or sale of assets.

         12. Time of Granting Options.

         The date of grant of an Option shall, for all purposes, be the date on
         which the Administrator makes the determination granting such Option,
         or such other date as is determined by the Board. Notice of the
         determination shall be given to each Employee or Consultant to whom an
         Option is so granted within a reasonable time after the date of such
         grant.

         13. Limitations.

                  (a) Each Option shall be designated in the written option
agreement as either an Incentive Stock Option or as a Nonstatutory Stock Option.
However, notwithstanding such designation, to the extent that the aggregate Fair
Market Value of the Shares with respect to which Incentive Stock Options are
exercisable for the first time by the Optionee during any calendar year (under
all plans of the Company and any Parent or Subsidiary) exceeds $100,000, such
Options shall be treated as Nonstatutory Stock Options. For purposes of this
Section 6(a), Incentive Stock Options shall be taken into account in the order
in which they were granted. The Fair Market Value of the Shares shall be
determined as of the time the Option with respect to such Shares is granted.

                  (b) Neither the Plan nor any Option shall confer upon an
Optionee any right with respect to continuing the Optionee's employment or
consulting relationship with the Company, nor shall they interfere in any way
with the Optionee's right or the Company's right to terminate such employment or
consulting relationship at any time, with or without cause.


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                  (c) The following limitations shall apply to grants of Options
to Employees:

                           (1) No Employee shall be granted, in any fiscal year
of the Company, Options to purchase more than 150,000 (post-split) Shares.

                           (2) In connection with his or her initial employment,
an Employee may be granted Options to purchase up to an additional 250,000
(post-split) Shares which shall not count against the limit set forth in
subsection (i) above.

                           (3) The foregoing limitations shall be adjusted
proportionately in connection with any change in the Company's capitalization as
described in Section 11.

                           (4) If an Option is cancelled in the same fiscal year
of the Company in which it was granted (other than in connection with a
transaction described in Section 11), the cancelled Option will be counted
against the limits set forth in subsections (i) and (ii) above. For this
purpose, if the exercise price of an Option is reduced, the transaction will be
treated as a cancellation of the Option and the grant of a new Option.

         14. Amendment and Termination of the Plan.

                  (a) Amendment and Termination. The Board may at any time
amend, alter, suspend or terminate the Plan.

                  (b) Shareholder Approval. The Company shall obtain shareholder
approval of any Plan amendment to the extent necessary and desirable to comply
with Applicable Laws.

                  (c) Effect of Amendment or Termination. No amendment,
alteration, suspension or termination of the Plan shall impair the rights of any
Optionee, unless mutually agreed otherwise between the Optionee and the
Administrator, which agreement must be in writing and signed by the Optionee and
the Company. Termination of the Plan shall not affect the Administrator's
ability to exercise the powers granted to it hereunder with respect to Options
granted under the Plan prior to the date of such termination.

         15. Conditions Upon Issuance of Shares.

         Shares shall not be issued pursuant to the exercise of an Option unless
         the exercise of such Option and the issuance and delivery of such
         Shares pursuant thereto shall comply with all Applicable Laws, and
         shall be further subject to the approval of counsel for the Company
         with respect to such compliance. As a condition to the exercise of an
         Option, the Company may require the person exercising such Option to
         represent and warrant at the time of any such exercise that the Shares
         are being purchased only for investment and without any present
         intention to sell or distribute such Shares if, in the opinion of
         counsel for the Company, such a representation is required.

         16. Reservation of Shares.

         The Company, during the term of this Plan, will at all time's reserve
         and keep available such number of Shares as shall be sufficient to
         satisfy the requirements of the Plan.

         17.

         The inability of the Company to obtain authority from any regulatory
         body having jurisdiction, which authority is deemed by the Company's
         counsel to be necessary to the lawful issuance and sale of any Shares
         hereunder, shall relieve the Company of any liability in respect of the
         failure to issue or sell such Shares as to which such requisite
         authority shall not have been obtained.


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         18. Shareholder Approval.

         Continuance of the Plan shall be subject to approval by the
         shareholders of the Company within twelve (12) months before or after
         the date the Plan is adopted. Such shareholder approval shall be
         obtained in the degree and manner required under applicable state and
         federal law.


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