Westmere-EX: Intel Improves their Xeon Flagshipby Johan De Gelas on April 6, 2011 2:39 PM EST
Westmere-EX SKUs and Performance
Intel has three general classifications for the new 10-core processors. The E7-x870 runs at 2.4GHz and has a 30MB L3, while the E7-x860 runs at 2.26GHz and the E7-x850 runs at 2.13GHz; the lower clocked models are also downgraded to a 24MB L3. As there are versions for 8-, 4-, and 2-socket servers, we get nine new SKUs. Pricing on the highest end 8-socket models is very high, but that's not too surprising for the target market: the E7-8870 costs $4616, the E7-8860 goes for $4061, and the E7-8850 comes with a "bargain" price of $3059. For quad-socket chips, you can knock that down about $225, and dual-socket chips will reduce prices another $175 or so.
What this means is pricing for the fastest Xeons has increased by about $1000, a clear sign that Intel does not expect any competition in the small but profitable high-end x86 market. And indeed, the current AMD "Magny-cours" is targeted at the midrange server market, not the high-end. Bulldozer will be AMD's attempt to take on these new Xeon models, and it probably won't attack this high-end market before the end of the year.
Also present is a low power E7-8867L, which runs 10 cores at 2.13GHz but needs 105W instead of the 130W of the E7-8850. For the 25W drop in TDP, the price jumps up to $4172.
The E7-8837 is another interestin processor. It has eight cores and forgoes Hyper-Threading, so it's like the Nehalem-EX but with a 2.67GHz clock it runs 18% higher than the fastest Nehalem-EX CPUs. Thus, it looks like the 45nm to 32nm transition either delivers two extra cores and a 6% clockspeed increase, or it improves clocks by 18% with the same number of cores. Below is the complete table of new SKUs.
|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|
Taken together, the two extra cores (up to 25% more performance) and a 6% clock increase, along with some subtle core improvements, mean the Westmere-EX parts should deliver 20-40% more performance within the same TDP. It's not enough to revolutionize the server space, but more performance per watt is nothing to sneeze at.