在事情釐清之前,我要先罵一下cocorico 因為他發這文有誤導之嫌


以下引述xbit labs原文說明片段
完整文章在此
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[color=sky blue]NVIDIA said that compiler technology tunes DirectX 9.0 execution on GeForce FX GPUs, and can be used to correct any similar conflict that arises with future APIs. NVIDIA indicated that the Unified Compiler is an automatic tuning tool that optimizes Pixel Shader performance on all applications, not just on specific ones[/color]
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這段話是nvidia聲明他們在52.xx驅動程式用的編譯器能提升pixel shader performance
對於所有遊戲都有幫助,並不單純是為某款軟體最佳化而已


然而這是那個xxoo總經理說的話
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[color=sky blue]However, it appears that some technical specialists have something to say against the new patch. Hans-Wolfram Tismer, a Managing Director for Gainward Europe GmbH said today: “According to my information patch 340 disables the GPU compiler. The compiler has to run on the CPU instead resulting in code harder to digest and taking away 20% of the performance. This may not reflect gaming performance and may point in the wrong direction. To me 3DMark03 may look less and less suitable to be used for benchmarking. By the end of the day the end users are running games and applications, not 3DMark03[/color]
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這個xxoo總經理說patch340關閉GPU compiler,讓可以由GPU運算的資料變成由CPU運算,以致於產生20%效能減損
(有點把52.xx驅動打回原形,變成44.xx驅動的意味)
同時不齒fm這種做法,認為這樣會讓3dmark03喪失公信力


但實測結果卻推翻這xxoo總經理的話
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[color=sky blue]Due to some reasons, 3DMark03 in-depth testing of this web-site revealed no performance penalty in 3DMark03 Pixel Shader 2.0 performance test, but uncovered a 26.5% speed drop in Vertex Shader test.[/color]
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3dmark03測出來的結果,在nvidia宣稱用compiler最佳化的的pixel shader方面並無任何改變
反而是vertex shader performance下降了26.5%
如果真的如那個xxoo總經理所言,pixel shader performance應該會被打回44.xx版驅動的水準
但是並沒有, 所以......xxoo總經理說的對嗎?
靜觀其變吧