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pepd65
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加入日期: Jan 2008
文章: 443
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作者carage
Nvidia Kepler GK104:

28nm production at TSMC,
Die size 340mm²
4 Graphics Processing Clusters (GPC)
4 Streaming Multiprocessors (SM) per GPC = 16 SM
96 Stream Processors (SP) per SM = 1536 CUDA cores
8 Texture Units (TMU) per SM = 128 TMUs
32 Raster OPeration Units (ROPs)
Chip clock (top model): 950 MHz
1250 MHz actual (5.00 GHz effective) memory, 160 GB/s memory bandwidth
256-bit DDR memory interface (up to GDDR5)
2048 MB (2 GB) memory amount standard
2.9 TFLOP/s single-precision floating point compute power
486 GFLOP/s double-precision floating point compute power
Elimination of Hotclocks


從這個謠傳的規格來推算一下:
Die size: GK104與GF114相近
Compute Performance: 2918.4 GFLOPS (GTX560Ti的2.31倍)
Texture Fillrate: 121.6 GT/s (GTX560Ti的2.31倍)
Memory Bandwidth: 160 GB/s (只有GTX560Ti的1.25倍)

規格翻了一倍,但256bit的記憶體頻寬好像不成比例
我在想GK104會不會是384bit?
 
舊 2012-02-16, 08:20 PM #52
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