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Old 2015-12-09, 14:37   #1
VictordeHolland
 
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"Victor de Hollander"
Aug 2011
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Default Intel Broadwell-E rumors

Intel Broadwell-E benchmarks are leaked on Taobao (a sort of Chinese eBay)

Intel Xeon E5-2698 v4 20C/40T 2.1GHz (with Turbo to max 3.5GHz?) 50MB L3 cache

On a ASUS Z10PA-D8 server motherboard (2 sockets)

Cinebench R15
2x Intel Xeon E5-2698 v4 (2.1GHz, 20C/40T, 50MB L3): 4,980

In comparison to the current top model for 2 sockets:
2x Intel Xeon E5-2699 v3 (2.3GHz, 18C/36T, 45MB L3): 4,523
For reference (1 socket)
1x Intel Core i7 5960X (3.0GHz, 8C16T, 20MB L3) 1.479
1x Intel Core i7 6700K (4.0GHz, 4C8T, 8MB L3): 885

The Intel Xeon E5-2699 is rumoured to come with a hefty 22 cores! But as with the previous top models, they are all power restrained. For LL they lack the necessary memory bandwidth to feed that amount of cores.
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Old 2015-12-09, 19:01   #2
Madpoo
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Quote:
Originally Posted by VictordeHolland View Post
The Intel Xeon E5-2699 is rumoured to come with a hefty 22 cores! But as with the previous top models, they are all power restrained. For LL they lack the necessary memory bandwidth to feed that amount of cores.
I don't know... it could probably do fairly well.

On my dual 14-core system (E5-2697 v3) I can run a single worker with all 14 cores of one CPU and another 7-9 cores on the other CPU and still continue to get those slight bumps in performance. It only starts to tank once I have a total of 23+ cores.

Would it actually do worse if 22 cores were all on one CPU and all fighting for the same quad-channel memory bus instead of using QPI to send info to the other socket which then has it's own mem bus for doing whatever? Not sure.

It does help to have all 4 memory channels populated, I'm pretty sure of that. And running at top speed too.
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Old 2015-12-12, 11:38   #3
VictordeHolland
 
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More rumored details (Single socket desktop):

Cores/threads Snelheid/Boost L3-cache Socket Memory supported
Intel Core i7-6950X 10/20 3GHz/3.5GHz 25MB LGA2011-v3 ddr4-2400, -2133
Intel Core i7-6900K 8/16 3,3GHz/3.7GHz 20MB LGA2011-v3 ddr4-2400, -2133
Intel Core i7-6850K 6/12 3,6GHz/3.8Ghz 15MB LGA2011-v3 ddr4-2400, -2133
Intel Core i7-6800K 6/12 3,4GHz/3,6GHz 15MB LGA2011-v3 ddr4-2400, -2133
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