Newsgroup: it.comp.hardware.video-3d
Titolo: riassumendo i rumors





innanzitutto parrebbe o cosi si dice, che G200 sia un dual gpu, nascoste da 
un core grande
NVIDIA
* GT200, G100, G10U 
will now be known as the Geforce GTX 200 series
* June 18 launch
* Two 
models at launch: GTX 280 & GTX 260
* Unknown pricing
* The full core 
is expected to have 240SPs (compared to 128 in G92/G80) & 512-bit memory 
interface
* Most likely using GDDR3/4


GTX 280
:
-Shaders
240*1500*2= 
720
 Gflops per second
-TMUs
80*600= 
48
 billion texels per second
-ROPs
32*600= 
19.2
 billion pixels per 
second
AMD
* RV770 will end up as the Radeon HD 
4800 series
* RV770 most likely has 480 SPs (compared to 320 in RV670/R600), 
32 TMUs (doubled) & 512-bit
* 4850 launch on June 16, will use GDDR3 and 
priced at $229
* 4870 paper launch on June 23, will use GDDR5 and priced at 
$349
* 4870X2 will have a better inter-core communication, new tech
* 
4870X2 is expected to launch in September, priced at $549


HD 4870
:
-Shaders
480@1050*2= 
1008
 Gflops per second
-TMUs
32*850= 
27.2
 billion texels per second
-ROPs
16*850= 
13.6
 billion pixels per second
HD 
4870X2
Shaders= 
2016
 
Gflops per second
TMUs= 
54.4
 
billion texels per second
ROP= 
27.2
 billion pixels per second


 


HD4870 / HD4850
Core (MHz): 850 / 
625 (36% diff)
Shader (MHz): 1050 / 825 (27% diff)
Mem (MHz): 1945 / 1143 
(70% diff)
Texturefillrate (MT/s): 27.200 / 20.000 (36% diff)
Bandwidth 
(GB/s): 124 / 73 (69% diff)
TDP (W): 157 / 114 (38% diff)
GTX 
280
* 240 SP
* 10 Shader clusters
* 80 TMUs (or TF)
* 8 ROP 
partitions
* 32 ROPs
* 512-bit (8x64=512-bit)
* 1GB GDDR3
* 240 
Stream processors
* PhysX ready
* CUDA Technology
* PureVideoHD 
Technology
* Full MS DirectX10 support
* OpenGL 2.1, SLI, PCIe 2.0 
support
* 2nd gen unified architecture delivers 50% more gaming performance 
over 1st gen through 240 SP
The TDP of the GTX 280 is 

250
W
GTX 260
* 192 SP
* 8 Shader clusters
* 
64 TMUs (or TF)
* 7 ROP partitions
* 28 ROPs
* 448-bit 
(7x64=448-bit)
* 896MB GDDR3
* 192 Stream processors
* PhysX ready
* 
CUDA Technology
* PureVideoHD Technology
* Full MS DirectX10 support
* 
OpenGL 2.1, SLI, PCIe 2.0 support
HD 4870
<
GTX 
280
<
HD 4870X2
GTX 280 sli
<
HD 
4870X2 CrossfireX
* 65nm
* Largest die-size ever: 576mm2
* 16 
shader clusters with 16 SPs each
* GTX 280 will have one shader cluster 
disabled for yeild purpose (15 SCs)
* GTX 260 will have 12 SCs (4 
disabled)
* Cost of one GT200 die around $100-110
* Around 1b 
transistors
* 65nm
* Largest die-size ever: 576mm2
* 16 shader clusters 
with 16 SPs each
* GTX 280 will have one shader cluster disabled for yeild 
purpose (15 SCs)
* GTX 260 will have 12 SCs (4 disabled)
* Cost of one 
GT200 die around $100-110
* Around 1b transistors
confronti con 
questa gen:
GTX 280
:
-Shaders
240*1500*2= 
720
 Gflops per second
-TMUs
80*600= 
48
 billion texels per second
-ROPs
32*600= 
19.2
 billion pixels per second
HD 
4870:
-Shaders
480@1050*2= 
1008
 Gflops 
per second
-TMUs
32*850= 
27.2
 billion texels 
per second
-ROPs
16*850= 
13.6
 billion pixels 
per second
HD 4870X2
Shaders= 
2016
 Gflops per second
TMUs= 
54.4
 billion texels per second
ROP= 

27.2
 billion pixels per 
second
9900GTX:
-Shaders
128*1688*2=
432
 Gflops per second
-TMUs
64*675=
43.2
 billion texels per second
-ROP
16*675=
10.8
 billion pixels per second
HD 
3870:
-Shaders
320*775*2=
496
 Gflops 
per second
-TMUs
16*775=
12.4
 billion texels per 
second
-ROPs
16*775=
12.4
 billion pixels per 
second







http://www.nordichardware.com/image3.php?id=5077


 


GeForce GTX 280 is going to be a mighty beast. The 
GT200 core impressed us from the very beginning in matters of raw performance. 
Alas there have been little information on the real-life performance of the 
card, other than statements that it runs Crysis fine at certain settings and 
that it scores 7000 points in the Vantage Extreme profile. We've been provided 
some more solid information based on the performance in Stanford's Folding@Home 
client. 


 


A slide recently presented says that GeForce GTX 
280 will be capable of folding slightly more than 500 mol/day, which is three 
times more than what Radeon HD 3870 can do, about 170 mol/day (according to the 
slide), or five times more than PlayStation 3; 100 mol/day. 


 


http://www.nordichardware.com/news,7777.html


 


 


inoltre info su RV730, la 
sub 100$


 


http://www.ati-forum.de/general/news/493-finale-rv730-spezifikationen-i-final-rv730-specs/?29c56f82