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Intel Xeon E5-2640 v4 vs Xeon E5-2651 v2

The Intel Xeon E5-2640 v4 @ 2.40GHz is newer than Intel Xeon E5-2651 v2 @ 1.80GHz and is around 31% faster in multi-threaded (CPU Mark) testing. It is also significantly faster in single-thread testing. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 285 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 E5-2640 v4 @ 2.40GHz×Intel Xeon E5-2651 v2 @ 1.80GHz+ ADD
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Socket TypeFCLGA2011-3LGA 2011
CPU ClassServerServer
Clockspeed2.4 GHz1.8 GHz
Turbo SpeedUp to 3.4 GHzUp to 2.2 GHz
# of Physical Cores10 (Threads: 20)12 (Threads: 24)
CacheL1: 640KB, L2: 2.5MB, L3: 25MBL1: 768KB, L2: 3.0MB, L3: 30MB
TDP90WNA2
Yearly Running Cost$16.43NA
Other
First Seen on ChartQ2 2016Q2 2016
# of Samples26817
CPU Value312.834.3
Single Thread Rating(% diff. to max in group)1979(0.0%)1131(-42.8%)
CPU Mark(% diff. to max in group)12479(0.0%)9551(-23.5%)
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 7th of November 2025 - Higher results represent better performance
Intel Xeon E5-2640 v4 @ 2.40GHz
12,479
Intel Xeon E5-2651 v2 @ 1.80GHz
9,551
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 7th of November 2025 - Higher results represent better value
Intel Xeon E5-2640 v4 @ 2.40GHz
312.8
Intel Xeon E5-2651 v2 @ 1.80GHz
34.3
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 7th of November 2025 - Higher results represent better performance
Intel Xeon E5-2640 v4 @ 2.40GHz
1,979
Intel Xeon E5-2651 v2 @ 1.80GHz
1,131
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 E5-2640 v4 @ 2.40GHz Intel Xeon E5-2651 v2 @ 1.80GHz
Max TDP90WNA
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.