N卡慘敗DX12!NVIDIA:驅動問題而已 - 3C

By Tristan Cohan
at 2015-09-07T12:20
at 2015-09-07T12:20
Table of Contents
首款DX12遊戲《奇點灰燼》讓AMD、NVIDIA兩家又一次吵翻了天
不同的是這次AMD占了上風,R9 290X顯卡在DX12中都可以逆襲GTX 980顯卡了
而NVIDIA顯卡有些神傷,DX12並沒有帶來什麼優勢,不復當年DX11之勇了。
遊戲開發者指出,NVIDIA處於劣勢的原因是他們並不支援DX12的非同步運算(Async
Compute
,但現在情況有所變化,NVIDIA的Maxwell顯卡硬體上是支援非同步運算的
問題出在驅動上,他們正在跟遊戲開發商合作解決這個問題。
簡單來說就是,NVIDIA的Maxwell架構中佇列、分配等任務都是驅動程式負責的
AWS、DMA引擎、CUDA核心都是硬體實現的,而在GCN架構中,佇列/任務分配/ACE等都是硬
體實現的
複製(DMA引擎)也是硬體的,CU單元也是硬體的。
說了這麼多,其實簡單一句話就是NVIDIA的Maxwell 2架構也是支援非同步運算的
但實現這個功能需要軟體及硬體兩方面的參與,而NVIDIA現在出問題的地方就是驅動程式
還沒做好支援。
與之不同的是,AMD的GCN架構中非同步運算基本上都是硬體單元實現的,簡化了開發,也
不依賴驅動程式。
來源︰http://news.mydrivers.com/1/445/445717.htm
NV 驅動就值5K了
--
不同的是這次AMD占了上風,R9 290X顯卡在DX12中都可以逆襲GTX 980顯卡了
而NVIDIA顯卡有些神傷,DX12並沒有帶來什麼優勢,不復當年DX11之勇了。
遊戲開發者指出,NVIDIA處於劣勢的原因是他們並不支援DX12的非同步運算(Async
Compute
,但現在情況有所變化,NVIDIA的Maxwell顯卡硬體上是支援非同步運算的
問題出在驅動上,他們正在跟遊戲開發商合作解決這個問題。
簡單來說就是,NVIDIA的Maxwell架構中佇列、分配等任務都是驅動程式負責的
AWS、DMA引擎、CUDA核心都是硬體實現的,而在GCN架構中,佇列/任務分配/ACE等都是硬
體實現的
複製(DMA引擎)也是硬體的,CU單元也是硬體的。
說了這麼多,其實簡單一句話就是NVIDIA的Maxwell 2架構也是支援非同步運算的
但實現這個功能需要軟體及硬體兩方面的參與,而NVIDIA現在出問題的地方就是驅動程式
還沒做好支援。
與之不同的是,AMD的GCN架構中非同步運算基本上都是硬體單元實現的,簡化了開發,也
不依賴驅動程式。
來源︰http://news.mydrivers.com/1/445/445717.htm
NV 驅動就值5K了
--
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