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riassumendo i rumors
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Black Angel
May 23, 2008, 9:29:53 AM5/23/08
to
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
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 250W
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 $100-110
* Around 1b transistors
confronti con questa gen:
GTX 280:
-Shaders
240*1500*2= 720 Gflops per second
-TMUs
80*600= 48 billion texels per second
-ROPs
32*600= 19.2 billion pixels per second
HD 4870:
-Shaders
480@1050*2= 1008 Gflops per second
-TMUs
32*850= 27.2 billion texels per second
-ROPs
16*850= 13.6 billion pixels per second
HD 4870X2
Shaders= 2016 Gflops per second
TMUs= 54.4 billion texels per second
ROP= 27.2 billion pixels per second
9900GTX:
-Shaders
128*1688*2=432 Gflops per second
-TMUs
64*675=43.2 billion texels per second
-ROP
16*675=10.8 billion pixels per second
HD 3870:
-Shaders
320*775*2=496 Gflops per second
-TMUs
16*775=12.4 billion texels per second
-ROPs
16*775=12.4 billion pixels per second
Black Angel
May 23, 2008, 9:39:30 AM5/23/08
to
GeForce GTX 280 is going to be a mighty beast. The
GT200 core impressed us from the very beginning in matters of raw performance.
Alas there have been little information on the real-life performance of the
card, other than statements that it runs Crysis fine at certain settings and
that it scores 7000 points in the Vantage Extreme profile. We've been provided
some more solid information based on the performance in Stanford's Folding@Home
client.
A slide recently presented says that GeForce GTX
280 will be capable of folding slightly more than 500 mol/day, which is three
times more than what Radeon HD 3870 can do, about 170 mol/day (according to the
slide), or five times more than PlayStation 3; 100 mol/day.
inoltre info su RV730, la
sub 100$
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