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Intel Xeon E5-2651 v2 vs Xeon E5-1660 v2

The Intel Xeon E5-2651 v2 @ 1.80GHz is newer than Intel Xeon E5-1660 v2 @ 3.70GHz and is around -8% slower in multi-threaded (CPU Mark) testing. The Intel Xeon E5-2651 v2 @ 1.80GHz is around -47% slower in single-thread testing. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 107 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.

  • The first section will show basic information for each CPU selected.
  • The additional graphs shows the CPU Mark and Single Thread values of each CPU selected.
  • An accompany graph, if price data is available, will shows the value for money, in terms of the CPU Mark/Thread Rating per dollar.
  • The last section will show approximate yearly running costs for the CPUs.

×Intel Xeon E5-2651 v2 @ 1.80GHz×Intel Xeon E5-1660 v2 @ 3.70GHz+ ADD
Price Search Online $289.95 - BUY
Socket TypeLGA 2011LGA 2011
CPU ClassServerServer
Clockspeed1.8 GHz3.7 GHz
Turbo SpeedUp to 2.2 GHzUp to 4.0 GHz
# of Physical Cores12 (Threads: 24)6 (Threads: 12)
CacheL1: 768KB, L2: 3.0MB, L3: 30MBL1: 384KB, L2: 1.5MB, L3: 15MB
TDPNA2130W
Yearly Running CostNA$23.73
Other
First Seen on ChartQ2 2016Q4 2013
# of Samples1790
CPU Value34.335.6
Single Thread Rating(% diff. to max in group)1131(-46.9%)2132(0.0%)
CPU Mark(% diff. to max in group)9551(-7.6%)10332(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
2 - Information not available. Do you know? Notify Us.

CPU Mark Rating
As of 19th of November 2025 - Higher results represent better performance
Intel Xeon E5-2651 v2 @ 1.80GHz
9,551
Intel Xeon E5-1660 v2 @ 3.70GHz
10,332
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 19th of November 2025 - Higher results represent better value
Intel Xeon E5-2651 v2 @ 1.80GHz
34.3
Intel Xeon E5-1660 v2 @ 3.70GHz
35.6
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 19th of November 2025 - Higher results represent better performance
Intel Xeon E5-2651 v2 @ 1.80GHz
1,131
Intel Xeon E5-1660 v2 @ 3.70GHz
2,132
PassMark Software © 2008-2025
Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per day Average CPU Utilization (0-100%)1 Power cost, $ per kWh2
8
25
1Average user usage is typically low and can vary from task to task. An estimate load 25% is nominal.
2Typical power costs vary around the world. Check your last power bill for details. Values of $0.15 to $0.45 per kWh are typical.
Intel Xeon E5-2651 v2 @ 1.80GHz Intel Xeon E5-1660 v2 @ 3.70GHz
Max TDPNA130W
Power consumption per day (kWh)NANA
Running cost per dayNANA
Power consumption per year (kWh)NANA
Running cost per yearNANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.