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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Xeon E5-2650 v2 vs Xeon E5-2640 v3 vs Xeon E5-2666 v3

All the CPUs in this comparison belong in the Server CPU Class.The values below were tabulated from a combined 1585 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 E5-2650 v2 @ 2.60GHz×Intel Xeon E5-2640 v3 @ 2.60GHz×Intel Xeon E5-2666 v3 @ 2.90GHz+ ADD
Price $129.95 - BUY $189.95 - BUY Search Online
Socket TypeFCLGA2011LGA2011-v3LGA2011-v3
CPU ClassServerServerServer
Clockspeed2.6 GHz2.6 GHz2.9 GHz
Turbo SpeedUp to 3.4 GHzUp to 3.4 GHzUp to 3.5 GHz
# of Physical Cores8 (Threads: 16)8 (Threads: 16)10 (Threads: 20)
CacheL1: 512KB, L2: 2.0MB, L3: 20MBL1: 512KB, L2: 2.0MB, L3: 20MBL1: 640KB, L2: 2.5MB, L3: 25MB
TDP95W90W135W
Yearly Running Cost$17.34$16.43$24.64
Other
First Seen on ChartQ3 2013Q3 2014Q1 2015
# of Samples721459405
CPU Value75.858.30.0
Single Thread Rating(% diff. to max in group)1679(-14.6%)1881(-4.3%)1966(0.0%)
CPU Mark(% diff. to max in group)9847(-30.2%)11077(-21.5%)14110(0.0%)

CPU Mark Rating
As of 20th of April 2025 - Higher results represent better performance
Intel Xeon E5-2650 v2 @ 2.60GHz
9,847
Intel Xeon E5-2640 v3 @ 2.60GHz
11,077
Intel Xeon E5-2666 v3 @ 2.90GHz
14,110
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 20th of April 2025 - Higher results represent better value
Intel Xeon E5-2650 v2 @ 2.60GHz
75.8
Intel Xeon E5-2640 v3 @ 2.60GHz
58.3
Intel Xeon E5-2666 v3 @ 2.90GHz
NA
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 20th of April 2025 - Higher results represent better performance
Intel Xeon E5-2650 v2 @ 2.60GHz
1,679
Intel Xeon E5-2640 v3 @ 2.60GHz
1,881
Intel Xeon E5-2666 v3 @ 2.90GHz
1,966
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 E5-2650 v2 @ 2.60GHz Intel Xeon E5-2640 v3 @ 2.60GHz Intel Xeon E5-2666 v3 @ 2.90GHz
Max TDP95W90W135W
Power consumption per day (kWh)NANANA
Running cost per dayNANANA
Power consumption per year (kWh)NANANA
Running cost per yearNANANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.