AMD為什麼用四個小核心組成一個32核?因 - 3C
By Todd Johnson
at 2017-08-28T14:42
at 2017-08-28T14:42
Table of Contents
AMD為什麼用四個小核心組成一個32核?因為成本能下降41%啊
2017-08-25
大家應該都清楚AMD的EPYC與Ryzen Threadripper處理器都是採用多Die封裝的MCM,CPU裡
面都有四個Summit Ridge核心,其實AMD早就說過這樣做是為了節約成本,讓大家用更少
的錢買到更多的核心,然而這樣做能節約多少呢?AMD在HotChips大會上給出了答案。
http://i.imgur.com/nrtMhcE.jpg
一個Summit Ridge核心的面積為213mm2,EPYC是由4個這樣的核心組成的32核處理器,總
體面積大概852mm2,如果真的做一個32核的大核心出來的話核心面積大概會是777mm2,這
樣核心面積會縮小10%左右,然而設計並生產4個小核心的成本只有1個大核心的59%,而且
良品率會大大的增加,這也是為什麼EPYC與Ryzen Threadripper處理器的價格與Intel同
類產品相比便宜這麼多的原因。
另外AMD給出的EPYC處理器核心示意圖可以看得出,每個Summit Ridge核心都有四個對外
的Infinity Fabric匯流排界面,其中三條用來與其他三個核心通信,剩下一個用來對外
互聯,應該是組雙路系統時用來與另一個EPYC處理器通信用的。
http://tinyurl.com/y8k7ud6r
Vega52:
利潤好幾萬還供不應求vs.利潤微薄供不應求
--
作者 KotoriCute (Lovelive!) 看板 PC_Shopping
標題 [情報] Skylake-X備貨捉急:居然不能如數交付
時間 Wed Jul 19 00:23:39 2017
--
2017-08-25
大家應該都清楚AMD的EPYC與Ryzen Threadripper處理器都是採用多Die封裝的MCM,CPU裡
面都有四個Summit Ridge核心,其實AMD早就說過這樣做是為了節約成本,讓大家用更少
的錢買到更多的核心,然而這樣做能節約多少呢?AMD在HotChips大會上給出了答案。
http://i.imgur.com/nrtMhcE.jpg
一個Summit Ridge核心的面積為213mm2,EPYC是由4個這樣的核心組成的32核處理器,總
體面積大概852mm2,如果真的做一個32核的大核心出來的話核心面積大概會是777mm2,這
樣核心面積會縮小10%左右,然而設計並生產4個小核心的成本只有1個大核心的59%,而且
良品率會大大的增加,這也是為什麼EPYC與Ryzen Threadripper處理器的價格與Intel同
類產品相比便宜這麼多的原因。
另外AMD給出的EPYC處理器核心示意圖可以看得出,每個Summit Ridge核心都有四個對外
的Infinity Fabric匯流排界面,其中三條用來與其他三個核心通信,剩下一個用來對外
互聯,應該是組雙路系統時用來與另一個EPYC處理器通信用的。
http://tinyurl.com/y8k7ud6r
Vega52:
利潤好幾萬還供不應求vs.利潤微薄供不應求
--
作者 KotoriCute (Lovelive!) 看板 PC_Shopping
標題 [情報] Skylake-X備貨捉急:居然不能如數交付
時間 Wed Jul 19 00:23:39 2017
推 c52chungyuny: Intel跟AMD差別就在於利潤好幾萬還供不應求vs. 利潤07/19 00:32
→ c52chungyuny: 微薄供不應求 07/19 00:32
推 a000000000 : c52.exe是崩不應求07/19 00:35
--
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