性能暴增 50%!NVIDIA 全新架構Volta解析 - 3C
By Lauren
at 2017-05-12T12:22
at 2017-05-12T12:22
Table of Contents
剛剛無聊用GV100的specs來推算一下nvidia下一代消費級會出什麼樣的卡
從Maxwell到Pascal的趨勢
大核(Titan/x80ti)跟中核(x80/x70)裝滿cuda core的比例大約是3:2
而同樣是大核 x80ti的cuda core少一些(不到10%)
但同樣是中核 x70的cuda core大概會比x80少掉20%-25%
以目前公佈GV100的spec 裝滿的話 會有84組SM 5376個cuda core
(Tesla V100計算卡的spec是 80組SM 5120 cuda core)
那GV102應該會把GV100每組SM內的大部份FP64跟tensor core拿掉 換成兩倍量的FP32
這樣SM數減半成42或40組大概就是Titan Xv(?)跟GTX2080Ti了
這樣照比例算下來GV104裝滿會有28組SM 3584個cuda core 假設這就是GTX2080
另外比照GTX1070相對GTX1080的閹割法 GTX2070大概會有21組SM 2688個cuda core
前面報導說製程只有小改 預期頻率不會提升太多 (暫時不考慮GDDR5X->GDDR6效能影響)
假設同頻效率沒有變化太大 只看cuda core數量來評斷
那GTX2080大概會跟GTX1080Ti不相上下 GTX2070會比GTX1080略高
但Titan Xv或GTX2080Ti會很恐怖 cuda core爆多...
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但是QHD以下解析度的遊戲效能 還會不會需要讓人再堆更多的cuda core
那是另外一個問題... (還是說兩年以後大家都用5k甚至8k來玩遊戲了?)
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