AMD Zen 要跟Intel拼價格,8C6T只要300鎂 - 3C

By Sarah
at 2016-11-16T14:51
at 2016-11-16T14:51
Table of Contents
AMD的顯卡靠著新架構新工藝的Polaris已經有了起色,CPU市場還要再來一針強心劑
可惜2016年AMD沒能推出Zen處理器,這個大殺器將延期到明年初
對追求高性能處理器的玩家來說,Zen依然是值得期待的
因為Intel在主流處理器市場上只推4核8執行緒的Core i7,8核、10核處理器
售價非一般人能承受,但AMD的Zen處理器不僅會有8核16執行緒
更重要的是AMD還會繼續保持價格上的優勢,消息稱只要300美元左右就能買到8核16執行
緒器
而Intel 4核8執行緒的處理器售價還在340-350美元之間。
由於進度延期,Zen處理器目前還在測試中,之前曝光的步進到了A0階段
還有一些初期的性能測試曝光。日前Reddit上有疑似深喉曝光了Zen處理器更多細節
要比之前的零星爆料更詳細,看了下很多內容還是挺可信的。
現在分享如下:
·現在的測試樣品中有一些勘誤表,與當年Phenom的TLB錯誤類似
目前已經通過BIOS做了臨時修正,不過這個變通方案導致30-40%的性能損失
(如果這條爆料正確,那麼意味著市面上曝光的Zen處理器性能都被低估了)
·Zen處理器進度落後於預期,每天都有實際進步並修正bu
。與Intel E0步進非常接近最終版不同,AMD的樣品會一直修復bug直到最終版發給客戶為
止。
·8月份時鐘頻率是3.8GHz,現在超頻到4.2GHz也是可能的,LN2液氮下甚至能超到5G
Hz
最終版可能會有變化,不過現在的版本表現就是如此。
·AM4/Zen使用了SoC設計,意味著CMOS/BIOS都是封裝處理器內的
(BIOS沒必要這樣做,不過原文表示他不能確認這條內容)
所以有可能在你清空BIOS資訊30分鐘之後,系統依然使用舊的BIOS設定值
現在還不知道這個問題如何解決,不過最終版本可能不這樣。
·(名義上的)運行電壓是1.3V,在AIO一體式水冷下可達1.5V,頻率並行性
(指的是提高電壓之後頻率同步提升的水準)不是強項,不過這點上還有工作要做
這並不是設計缺陷。
·與Intel最新產品相比,Zen的性能尤其強大,單執行緒及多執行緒性能可比Haswell-E
對記憶體頻寬要求較高的測試中Intel會占優,這是因為記憶體通道更多
(Haswell-E是4通道,主流產品通常是雙通道),不過對這一點原文表示不能確定,因為
沒有具體資訊。
如果禁用了bug修正(前面說了臨時的bug修正會損失30-40%的性能)
那麼AMD 8核16執行緒器的性能就算沒有高出更多,至少也是Core i7-5960X的水準(基於
Cinbench R15測試)。
·IMC記憶體控制器的表現如何還不好說,因為目前的樣品限制了記憶體頻率
(2133MHz及更低),這些會影響記憶體性能。
·如之前所說,AMD正在史無前例地努力修正問題,以便在3月份之前準備好
(這是說Zen處理器將在明年3月份發佈嗎?)
·在CPU發佈之前或者發佈時,玩家很可能看不到任何高端AM4主機板
因為還有很多事正在快速變化中,主機板廠商不敢冒進——說起來
之前曝光的AM4主機板確實都是低端產品,廠商的高端產品都沒有曝光,看來廠商還是很
謹慎的。
·通過Overdrive軟體就可以完成所有超頻設置,完全不需要進BIOS去改變設置。
·BIOS以及UEFI都是內建於CPU內,只有AMD可以升級BIOS以及微代碼
所有超頻都可以在作業系統內生效。(這意味著超頻玩家不用改完設置就重啟系統了)
·現在清空BIOS需要30分鐘時間,如果你替換CPU到另一塊主機板上
那麼保留的設置還是之前主機板上設定的,所以debug簡直是噩夢
(前面也說到這個問題了,要是最後還是如此,這就坑大了)
·它的對手是Core i7-6850K級別(最終也許不是選這個對手)
但售價約為300美元,這可是8核16執行緒的——這裡多囉嗦一句
Core i7-6850是6核12執行緒的,官方建議價是617-628美元
而主流桌面旗艦Core i7-6700K是4核8執行緒,售價339-350美元,AMD這還是要打價格戰
啊,簡直業界良心。
·AMD的Hyper Threading超執行緒叫做SMU,表現也很好,與Intel的HT超執行緒一樣效率
。
·Zen性能很好,比如SuperPi、Cinebench及3DMark等,它的FPU浮點單元性能尤其好,很
輕鬆就能達到Intel同級水準。
·就算記憶體頻率限制在了2133MHz,NB頻率限制在2400MH在,現在的Zen樣品性能依然讓
人震驚。
·可能會有比Core i7-6850K更高級的SKU型號,頻率會比它更高
當然價格也會略貴,但不可能達到翻倍水準。(指的應該是比上面說的300美元左右的價
格更高一些,但不至於翻倍)
·對於新的平臺,廠商廠商那裡還有很多驚喜
我們可以看看它們如何發展(特別是在2017年下半年Intel一團糟的情況下)
·對遊戲來說,即便是低解析度CPU性能更關鍵的情況下
Zen處理器也可以跟Intel產品一較高下。
還是那句話——以上資訊真假未知,不過從原文透露的資訊來看
他很可能比較接近AMD官方,而且這裡洩露的資訊比之前的更樂觀
此前曝光的資訊顯示Zen處理器性能是無法達到Intel Skylake架構水準的
而且頻率也提不上去,但如果這裡說的30-40%性能是因為臨時性修復錯誤所致
再加上目前記憶體、NB頻率都受限,那麼Zen處理器的真實性能還是值得期待的。
當然,最強的還是AMD的價格策略,300美元左右就能買8核16執行緒
如果真是如此,哪怕架構性能比Intel同期產品差一些,這也是個致命吸引力啊!
來源:
http://www.expreview.com/50710.html
XF編譯:
http://www.xfastest.com/thread-179576-1-1.html
希望板卡商不要大小眼
出一堆AMD平台爛板或太貴摸不起的就完美了
小心Intel打壓板廠
--
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3C
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