Westmere-EX: 英特尔至强旗舰级CPU

On 2011年04月7日, in news, by netoearth

Yesterday, Intel announced that their flagship server processor, the Xeon Nehalem-EX, is being succeeded by the Xeon Westmere-EX, a process-shrinking ” tick” in Intel’s terminology. By shrinking Intel’s largest Xeon to 32nm, the best Westmere-EX Xeon is now clocked 6% higher (2.4GHz versus 2.26GHz), gets two extra cores (10 versus 8) and has a 30MB L3 (instead of 24MB).

As is typical for a tick, the core improvements are rather subtle. The only tangible improvement should be the improved memory controller that is capable of extracting up to 20% more bandwidth out of the same DIMMs. The Nehalem-EX was the first quad-socket Xeon that was not starved by memory bandwidth, and we expect that the Westmere-EX will perform very well in bandwidth limited HPC applications.

With the launch of Westmere-EX (and Sandy Bridge on the consumer side before it), it appears Intel is finally ready to admit that their BMW-inspired naming system doesn’t make any sense at all. They’ve promised a new, “more logical” system that will be used for the coming years. The details of the new Xeon naming system are presented in the image below.

There is some BMW-ness left (e.g. the product line 3-5-7), but the numbers make more sense now. You can directly derive from the model number the maximum number of sockets, the type of the socket, and whether the CPU is low-end, midrange, or high-end. Intel also has the “L” suffix present for low power models.

Intel Xeon Westmere Specifications and Features
Processor Number Frequency L3 Cache Cores / Threads Turbo / HTT TDP 1kU Pricing
Xeon E7-8870 2.4GHz 30MB 10 / 20 Yes / Yes 130W $4,616
Xeon E7-8860 2.26GHz 24MB 10 / 20 Yes / Yes 130W $4,061
Xeon E7-8850 2.00GHz 24MB 10 / 20 Yes / Yes 130W $3,059
Xeon E7-8830 2.13GHz 24MB 8 / 16 Yes / Yes 105W $2,280
Xeon E7-8867L 2.13GHz 30MB 10 / 20 Yes / Yes 105W $4,172
Xeon E7-8837 2.67GHz 24MB 8 / 8 Yes / No 130W $2,280
Xeon E7-4870 2.40GHz 30MB 10 / 20 Yes / Yes 130W $4,394
Xeon E7-4860 2.26GHz 24MB 10 / 20 Yes / Yes 130W $3,838
Xeon E7-4850 2.00GHz 24MB 10 / 20 Yes / Yes 130W $2,837
Xeon E7-4830 2.13GHz 24MB 8 / 16 Yes / Yes 105W $2,059
Xeon E7-4820 2.00GHz 18MB 8 / 16 Yes / Yes 105W $1,446
Xeon E7-4807 1.86GHz 18MB 6 / 12 No / Yes 95W $890
Xeon E7-2870 2.40GHz 30MB 10 / 20 Yes / Yes 130W $4,227
Xeon E7-2860 2.26GHz 24MB 10 / 20 Yes / Yes 130W $3,670
Xeon E7-2850 2.00GHz 24MB 10 / 20 Yes / Yes 130W $2,558
Xeon E7-2830 2.13GHz 24MB 8 / 16 Yes / Yes 105W $1,779
Xeon E7-2820 2.00GHz 18MB 8 / 16 Yes / Yes 105W $1,334
Xeon E7-2803 1.73GHz 18MB 6 / 12 No / Yes 105W $774
Xeon E3-1280 3.50GHz 8MB 4 / 8 Yes / Yes 95W $612
Xeon E3-1275 3.40GHz 8MB 4 / 8 Yes / Yes 95W $339
Xeon E3-1270 3.40GHz 8MB 4 / 8 Yes / Yes 80W $328
Xeon E3-1260L 2.40GHz 8MB 4 / 8 Yes / Yes 45W $294
Xeon E3-1245 3.30GHz 8MB 4 / 8 Yes / Yes 95W $262
Xeon E3-1240 3.30GHz 8MB 4 / 8 Yes / Yes 80W $250
Xeon E3-1235 3.20GHz 8MB 4 / 8 Yes / Yes 95W $240
Xeon E3-1230 3.20GHz 8MB 4 / 8 Yes / Yes 80W $215
Xeon E3-1220L 2.20GHz 3MB 2 / 4 Yes / Yes 20W $189
Xeon E3-1225 3.10GHz 6MB 4 / 8 Yes / Yes 95W $194
Xeon E3-1220 3.10GHz 8MB 4 / 8 Yes / Yes 80W $189
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