- E5-2420V2; Q1'14; 22 nm; $ 406; 6C12T; 2.20~2.7GHz; 80 W
- Xeon 8168; Q3'17; 14 nm; $5890; 24C48T; 2.70~3.7GHz; 205 W; $245/核 8.54W/核
- Xeon W-3375; Q3'21; 10 nm; $4499; 38C76T; 2.50~4.0GHz; 270 W; $118/核,牛魔“被宰了” :-) 7.11W/核 8.54/7.11=120%
Thermal Design Power (TDP) represents the average power, in watts, the processor dissipates when operating at Base Frequency with all cores active under an Intel-defined, high-complexity workload. Refer to Datasheet for thermal solution requirements.
如何估算圓柱形電機外殼的散熱系數 - (zhihu.com) 能散出270W,耗電肯定大於270W。
38個進程去讀一塊SSD,SSD壓力山大啊。10 nm 24C48T的可能需要定制。
如果用E5-2420V2耗時1小時,Xeon W-3375耗時10分鍾,確實不必等得不耐煩了。但是算完題會立刻把電腦關掉嗎?Xeon會像筆記本CPU那樣積極省電嗎?
如果用E5-2420V2耗時48小時,Xeon W-3375耗時1小時,倒確實值得關電腦,確實很省電。
XX雲買新的,減少服務器台數是很合算的。高校的實驗室,算不太大的題目,一敲回車結果出來了,豈不是要忙得腳不沾地?原本可以邊算題邊看/寫論文的。寫論文哪能像我寫隨筆,復制粘貼一會一篇。
- Intel Xeon Processor E52420 v2 15M Cache 2.20 GHz Product Specifications
- Intel Xeon W3375 Processor 57M Cache up to 4.00 GHz Product Specifications
- Intel Xeon Platinum 8168 Processor 33M Cache 2.70 GHz Product Specifications
Recommended Customer Price (RCP) is pricing guidance only for Intel products. Prices are for direct Intel customers, typically represent 1,000-unit purchase quantities, and are subject to change without notice. Prices may vary for other package types and shipment quantities. If sold in bulk, price represents individual unit. Listing of RCP does not constitute a formal pricing offer from Intel. RCP values can vary due to tariffs.
Intel的廣告音樂前半截是“等等等等”,后半句是“會降價的。” :-)
買塊Xeon W-3375, 5年即60個月能回本嗎?CPU: $4499 * 6.32 = 28433元。電費:3273903.36元 * (270.0 / 7280000) * 60 = 7285元。
電價市場化改革后數據中心電費漲了多少?(qq.com) 一度電等於1千瓦時。該數據中心11月用了5241600度電,每度電0.6246元。
合計:35718元。 賣給76個人(每人一個線程),合每人7.85元/月。這不包括網絡流量、SSD的損耗和其它部件的耗電。北京聯通寬帶300M一年1372元,合1M1月=1372/300/12=0.38元 :-)