NV自爆帕斯卡性能:12TFLOPS浮點,三倍 - 3C
By Freda
at 2016-02-19T00:38
at 2016-02-19T00:38
Table of Contents
NVIDIA今年會推出新一代Pascal顯示卡,最快4月份的GTC 2016大會上就能見到針對高性
能伺服器市場
的Tesla版GP100 核心顯示卡。只不過NVIDIA這次的保密工作做到太好了
除了官方公佈過的3D顯示記憶體、FinFET製程之外,Pascal顯示卡的規格還是非常神秘。
還好NVIDIA功虧一簣,日前曝光的一份文件中顯示Pascal顯示卡配備的3D顯示記憶體頻寬
高達1024GB/s
單精度浮點性能12TFLOPS,雙精度浮點性能4TFLOPS,是GK110核心的三倍之多。
3DCenter論壇有網友找到了NVIDIA公司CUDA院士Manuel Ujaldon去年6月份發布的一份演
講文件
他本身也是西班牙大學教授,這份文檔裡對比了Intel、AMD及NVIDIA公司不同處理器
顯示卡的頻寬及計算性能,我們來看最關鍵的Pascal與Teslak K20X的對比。
K20X使用的是GK110核心,14組SMX單元,2688個CUDA核心,384bit記憶體頻寬,頻寬
25GB/s
單精度浮點性能3.95TFLOPS,雙精度浮點性能1.31TFLOPS。Pascal顯示卡規格沒提,但應
該是GP100核心
配備3D顯示記憶體,頻寬1024GB/s,單精度浮點性能12TFLOPS,雙精度浮點性能4TFLOPS
。
GK110與Pascal之間隔了Maxwell架構,不過Maxwell顯示卡之所以高效,很大一部分原因
是閹割了雙精度單元
所以在這一點上它實際上連GK110核心都不如,這可能是GM200核心沒有加入對比的原因。
只看GK110與Pascal的GP100核心,GP100的性能是GK110核心的三倍,單精度及雙精度差不
多都是這樣。
雖然缺少與GM200核心的直接對比,但GM200核心的Tesla M40單精度性能是7TFLOPS
以此計算的話GP100性能依然是GM200核心的1.7倍,也就是性能提升了70%。
來源:http://www.expreview.com/45650.html
XF 編譯 http://www.xfastest.com/thread-168737-1-1.html
綠色 3 倍速 沒有角
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