【討論】據傳Xbox的GPU頻率增加是否代表耐久性風險？這樣做值得嗎？

http://forum.gamer.com.tw/C.php?bsn=60001&snA=28529&tnum=11

網路上提供Xbox One從800MHz提升至853MHz後的參考數據

AMD的GCN架構每CU有64個著色器, 每個著色器每週期運算為2flops
Xbox1有 12個CU, 即 768個 著色器

GPU 800mhz = 1.228Tflops (800*2*768)
GPU 853mhz = 1.310Tflops (853*2*768)

原文網址
http://www.dualshockers.com/2013/07/11/does-the-xbox-ones-rumored-gpu-clock-increase-represent-a-durability-risk-is-it-worth-it/


部分原文
Maybe the real question we should ask ourselves is: is it worth it?
There’s a reason why overclocking on PC is normally done only by a smaller percentage of enthusiasts, and that’s because even pretty steep clock frequency bumps don’t really result in extreme increases in performance. Relatively safe GPU overclocks are between 5% and 10% of the original value, but that doesn’t bring a linear performance improvement.
Even if Microsoft managed to bump up the clock by 100 mhz (which is a quite extreme increase going by the most credible leaked specs for the machine, and would most definitely generate a considerable amount of additional heat), it’ll only bring the processing power of the console from 1.23 teraflops up to 1.38 teraflops.  That’s not really that much, and it would still be largely inferior to the PS4′s 1.84 teraflops.
Personally, I don’t really know if it’s worth it, and I tend to lean towards the “no” camp, especially if it means reducing the lifespan of the console’s components. Ultimately, if we have to believe the leaked specs, direct competition in processing horsepower with the PS4 doesn’t seem to be on the menu, so it doesn’t seem very wise to strain the system more without even getting near to processing parity.

詳細看原文
簡單來說就是討論微軟從1.23萬億次浮點運算，就算升到每秒1.38萬億次浮點運算，依然比起PS4的1.84萬億次浮點運算還要遜色。

而且評估在這過程當中對產品的壽命，零件的磨損，額外提升的溫度，電壓的增加會造成整體的穩定性有更高的風險，就算真的做到這樣也依然無法帶來明顯的性能提升。

那這樣是否有將GPU頻率增加的必要性
作者是傾向於反對的立場

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你忘了講...
就算PS4高達PS4的1.84萬億次浮點運算,然後在把變壓器塞進去,一樣散熱良好.

而吝一台還沒超頻前,已經為了散熱把變壓器外置化,超頻後多的廢熱能排出去嗎??

而且這也証實Podcast中Major Nelson已証實了一直流存的800mhz是正確的:
It's actually been really good news for us, and an example of that is we've tweaked up the clock speed on our GPU from 800mhz to 853mhz

這也是証實雙方差別大約就是HD7770(X1)對上7850(PS4)的差別...

 

吝外超頻也代表一件事,某些人提的雲端可讓畫面變好這件事完完全全的被戳破.