AMD Zen 3會上 7nm 但別指望性能會大提升 - 3C

By Margaret
at 2018-11-27T00:14
at 2018-11-27T00:14
Table of Contents
在本月中旬的New Horizo
,AMD宣布了世界首款7nm製程的數據中心64核心處理器及7nm Vega 20顯示卡
後者包括Radeon Instinct MI60及MI50兩款。在7nm節點,AMD做到了(CPU/GPU)
世界首發,新一代CPU會使用Zen 2製程,此外AMD還在發布會上提到了Zen 3架構進展順利
正在設計中,它將使用7nm+製程,也就是7nm EUV製程。雖然有EUV光刻製程加成
但是7nm EUV製程在性能上不會有多大的提升,AMD CTO Mark Pappermaster也在採訪中證
實7nm EUV製程
主要是改善Energy Efficiency,性能提升只是適度的。
EETimes上週採訪了AMD公司CTO Mark Papermaster,後者談到了7nm製程以及未來的7nm
EUV製程的情況
Mark Papermaster表示“摩爾定律正在放慢,而且半導體製程正在變得更加昂貴,我們沒
法得到過去那樣的頻率提升
”,他提到7nm製程升級也會帶來更多的光罩、更多的阻抗及寄生問題。
展望未來7nm節點之後還會有7nm EUV製程,Mark Papermaster在採訪中表示7nm EUV
製程主要是Energy Efficiency方面的提升,設備性能提升只是適度的(modest)。
根據台積電方面的說法,其7nm製程相比16FF+製程帶來了35%的性能提升或者60%的功耗降
低
而AMD方面的說法是7nm製程相比14nm製程帶來了25%的性能提升或者50%的功耗降低
在AMD公佈的路線圖中,最近揭曉的Zen 2架構是台積電7nm製程的
2020年問世的Zen 3架構會上7nm EUV,而台積電方面早前對7nm EUV的性能/功耗改善也是
語焉不詳
可以說的電晶體管密度再提升20%,功耗降低10%,性能基本上沒有提升或者提升非常少,
畢竟上EUV改變的只是製程流程
最關鍵的原因還是摩爾定律失效了,10nm節點之後性能提升越來越困難。
AMD官方對Zen 2架構的定性是性能大幅提升
這方面通過Rome處理器的變化已經可見一斑了
而Zen 3架構的定性是繼續優化每瓦性能比,這點上也符合 Mark Papermaster在採訪中的
所說的內容
Zen 3處理器的能效會提升,不過新製程對性能的提升有限。
來源
http://www.expreview.com/65457.html
XF編譯
https://www.xfastest.com/thread-224059-1-1.html
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