Newsgroup: it.comp.hardware.video-3d
Titolo: HARDWARE COMPARISION

Hardware Comparison
Many people want to know what to get in terms of 3D accelerator hardware so
we are building a little hardware comparison. It is far from completed but
hopefully someday it will be with a little help from you guys. If you know
anything more than is listed here or know that something is wrong please
drop me a mail at 
wh...@hammervald.se
In the performance bits the best result is in bold and the worst is in
Italic.
3D feature:s
Bi-Linear filtering
Tri-Linear filtering
Mip-mapping
P.C. texturemapping
Alphablending
Anti-Aliasing
Gouraud Shading
Fog
Z-buffer depth
Triangle Setup
Misc.
Type
Max 2D Resolution*
Max 3D Resolution**
Framebuffer Memory
Texture Memory
API:s
Direct3D
OpenGL
Native
Performance (P133)
GL Quake
Winbench 3D
Performance (P200MMX)
GL Quake
Winbench 3D
Performance (P2-266)
GL Quake
Winbench 3D
 3Dfx Voodoo
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
16bit
No
Addon 3D
-
640 x 480
2Mb
2-4Mb
Yes
Partial
GLIDE
31.2 fps
-
33.8 fps
127
33.9 fps
193
 3Dfx Rush
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
16bit
No
2D/3D
1152 x 864
800 x 600
4Mb
2-4Mb
Yes
Partial
GLIDE
-
-
17.2 fps
125
-
152
 RIVA 128
Yes
No
Yes
Yes
Yes
Unknown
Yes
Yes
16bit
Yes
2D/3D
1152 x 864
800 x 600
4Mb
0Mb
Yes
Partial
None
-
-
24.0 fps
117
32.2 fps
222
 PCX 2
Yes
No
Yes
Yes
Yes
No
Yes
Yes
24bit
No
Addon 3D
-
1024 x 768
0Mb
4Mb
Yes
Partial
PowerSGL
-
-
29.1 fps
88.4
31.3 fps
117
 V2200
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Unknown
Yes
2D/3D
Unknown
Unknown
2-8?
2-8?
Yes
Partial
Redline
-
-
26.3 fps
-
27.0 fps
208
* Max resolution at true color (24 or 32bit)
** Max resolution with Z and doubble buffer.
Note: The PowerVR PCX2 lacks framebuffer memory due to the fact that it uses
the framebuffer of your installed 2D card, this means that the memory amount
and quality of your 2D card makes an impact on the performance.
Note: The RIVA 128 lacks texture memory due to the fact that it uses the
system ram.
And to warp things up we are including the Man "Brian Hook"(idsoftware):s
thoughts and recommendations on the subject of which card to get (from the
GL Quake viewpoint):
3Dfx Voodoo Graphics - the 3Dfx Voodoo currently has very good performance,
very good features, and it coexists reasonably well with existing video
cards. It supports the portion of OpenGL we need for GLQuake, GLQuakeWorld,
and Quake2. It's blazingly fast, even if long in the tooth. It's not that
expensive anymore. It works with NT and Win95. Canopus has a 4MB texture
version. It's VERY difficult to go wrong with the 3Dfx Voodoo. So unless you
meet the following criteria, I'd say go with the Voodoo (Righteous 3D,
Obsidian, Flash 3D, Canopus, whatever). And no, I do NOT mean Voodoo Rush --
I haven't tested it yet so I can't offer an opinion on it one way or the
other.
Power VR PCX2 - Get a PowerVR PCX2 board (Matrox has one) if
- you already have a 2D accelerator
- you don't care about WinNT support and plan on using Win95 exclusively
- you're willing to give up high quality colored lighting with Quake2
- a full OpenGL driver isn't that important to you
- you wanna save fifty or so bucks over a Voodoo based board
RIVA 128 Get a RIVA128 board (STB, etc.) if
- you do NOT have a 2D accelerator and want a fast 2D/3D board
- you don't care about Win95 OpenGL support in the next few months
- you don't care about Win95 hardware accelerated Quake2 in the next few
months
- a full OpenGL driver (under NT) is important to you today
- you can live with 4MB of framebuffer

Tri-linear filtering e triangle setup ?
C'e' un qualcosa che non va, perche' il Voodoo1 non supporta il Tri-linear filtering cosi'
come non lo supporta il PowerVR PCX2. Il Voodoo2 ed Highlander supporteranno il Tri-linear
filtering. 
Il triangle setup non lo ha nessuno dei due chipset on-chip. 
Questo test non e' attendibile e cio' che dice Biran Hook poi lascia il tempo che trova,
visto e considerato che cambiano atteggiamento ogni 5 secondi. Una volta scrivono che e'
meglio il PCX2, il giorno dopo dicono che fa schifo. Un comportamento davvero
professionale! :-(