从Westmere-EX以后,至强CPU的命名法有些改变。
Nehalem EP/EX,Westmere EP时代是按照3000,5000,6000,7000序列分别,现在是E3,E5,E7。
型号可以用几个未知数表示:E(F)-(X)(Y)(Z)(W)(字母) V(N)
几个代数基本代表以下含义:
(F) - 家族,比如:E3,E5 也是针对市场
(X) - 千位数,代表CPU支持数量,比如: E5-4650指最多支持4路,E5-2650最多双路,E3-1230也只能单路,E7-8860最多八路
(Y) - 目前来看至强分为E3-1100,E3-1200,E5-X400,E5-X600,E7-X800z。百位数能代表插槽类型(2代E7不一定了)
Y = 1;BGA1284
Y = 2;LGA1155,LGA1150
Y = 4;LGA1356
Y = 6;LGA2011
Y = 8;LGA1567
(Z) - 在前面三位数一样的情况下,这个数每次上升说明不是主频上升就是核心数量上升(不算L结尾)比如:E5-1650 6C/12T 3.2GHz 和 E5-1660 6C/12T 3.3GHz
(W) - 这个不好说了,在E3家族里,十位数是5代表CPU有集成专业核显(HD P3000,P4000),在E5,E7家族里,十位数是7代表CPU主频较高,比如E5-2667,E5-2687W,E7-8867,十位数是3表示CPU主频较低,比如E5-1603,E5-2603
(字母) - 通常没有,不过有的话
W = Workstation (工作站)
L = Low Power (低压版)
C = 这个我也不清楚,好像只有E3-1105C,E3-1125C有这结尾
(N) - 几代,(不能完全代表构架因为E7似乎是tick才换)E3V1是Sandy Bridge,E3V2是Ivy Bridge,E7V1是Westmere,E7V2是Ivy Bridge
举个例子:
E5-2650L看千位数知道是能双路的E5,6说明能插上LGA2011,后面是50:算是E5-2600中端性能,L结尾是低频低功耗,然后V1的构架是Sandy Bridge。跟参数一致:E5-2650L 8C/16T 1.8GHz 8GT/s 70W TDP LGA2011
找到了一个英文解释,跟我的很相似不过后面两个代表SKU的数字其实是按照核心数量,Cache大小,主频,QPI,总线速计算的,虽然没有公式可以用。
First, you have the brand, Xeon. Easy enough. Then there’s the product line: E3, E5, or E7. Again, we get the general sense that E3 is intended for entry-level single-socket workstations and servers, while E5 now spans a broader range from single- to quad-socket systems. The E7s cover two-, four-, and eight-socket servers. The first digit you encounter specifies wayness, or the maximum number of CPUs in a node (that’s 1, 2, 4, or 8).
The second is indicative of socket type. Somewhat confusingly, Intel plans to use the numbers 2, 4, 6, and 8 moving forward. However, the actual interface corresponding to each digit may change.
At least for 2012, we end up with the following associations:
2 = LGA 1155
4 = LGA 1356
6 = LGA 2011
8 = LGA 1567
The last two numbers are SKU designators like 10, 20, 30, and so on. Although there’s no formula to tell you why one chip might be a 50 and another a 70, Intel says it uses a combination of core count, cache size, clock rate, QPI data rates, and so on to classify each chip. Certain models might also receive a single-letter suffix.
For example, a model ending in L is meant as a low-power part. The CPUs we’re testing today are flagged as workstation models with a W suffix.
Finally, in the future, Intel plans to use a version number after the model name like v2 or v3 to identify generational progression. Ivy Bridge-based CPUs will be the first to employ those.
