Hadn't been here for a while.
A week ago I received my two E5-2697v2 CPUs (12c, 24t, 2.7Ghz, 130 watt).
Thought there is some interest sharing experience with these.
When comparing to SB Xeon, I am referring to the E5-2687W I got a year ago.
Packaging:
The 12-core IB Xeons are a bit larger than the E5-2687W chip. No issues in the Asus m7B, the socket is spacy nough to cope with this. Not sure, if the narrow LGA-2011 sockets might have issues with these. recommend to be checked, if you are going this route.
Power:
Running on idle, the IB Xeon consumes more power than the SB Xeon (about 20 watt diff, probably due to larger core count)
Under higher load (stanford folding) the newer chip consumes about 40 watt less than my SB Xeons.
performance:
in the average the 30-35% better than my SB Xeons. Of course dependent on the instruction mix, the ratio varies.
Best case I had observed was 70%. There are most likely 2 possible root causes for this large deviation:
1) heavy dependencies on single instructions which had been significantly improved
2) Superlinear acceleration through the larger L3-cache, moving a bigger chunk of the working dataset up the memory hierarchy.
Compatibility:
works well with Asus Z9PE-D16 (BIOS 5105)
does not start with (my) Asus Z9PE-D8 (BIOS 5103) CPU is listed as compatible with this BIOS version (Support call is open)
cheers,
Andy
A week ago I received my two E5-2697v2 CPUs (12c, 24t, 2.7Ghz, 130 watt).
Thought there is some interest sharing experience with these.
When comparing to SB Xeon, I am referring to the E5-2687W I got a year ago.
Packaging:
The 12-core IB Xeons are a bit larger than the E5-2687W chip. No issues in the Asus m7B, the socket is spacy nough to cope with this. Not sure, if the narrow LGA-2011 sockets might have issues with these. recommend to be checked, if you are going this route.
Power:
Running on idle, the IB Xeon consumes more power than the SB Xeon (about 20 watt diff, probably due to larger core count)
Under higher load (stanford folding) the newer chip consumes about 40 watt less than my SB Xeons.
performance:
in the average the 30-35% better than my SB Xeons. Of course dependent on the instruction mix, the ratio varies.
Best case I had observed was 70%. There are most likely 2 possible root causes for this large deviation:
1) heavy dependencies on single instructions which had been significantly improved
2) Superlinear acceleration through the larger L3-cache, moving a bigger chunk of the working dataset up the memory hierarchy.
Compatibility:
works well with Asus Z9PE-D16 (BIOS 5105)
does not start with (my) Asus Z9PE-D8 (BIOS 5103) CPU is listed as compatible with this BIOS version (Support call is open)
cheers,
Andy