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Intel Xeon E5-2660 v2 vs Xeon E5-2666 v3

The Intel Xeon E5-2666 v3 @ 2.90GHz is newer than Intel Xeon E5-2660 v2 @ 2.20GHz also around 26% faster in multi-threaded (CPU Mark) testing, it is around 24% faster in single-thread testing. However, Intel Xeon E5-2666 v3 @ 2.90GHz uses around 35% more power. All the CPUs in this comparison belong in the Server CPU Class.The values below were tabulated from a combined 464 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 E5-2660 v2 @ 2.20GHz×Intel Xeon E5-2666 v3 @ 2.90GHz+ ADD
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Socket TypeLGA 2011LGA2011-v3
CPU ClassServerServer
Clockspeed2.2 GHz2.9 GHz
Turbo SpeedUp to 3.0 GHzUp to 3.5 GHz
# of Physical Cores10 (Threads: 20)10 (Threads: 20)
CacheL1: 640KB, L2: 2.5MB, L3: 25MBL1: 640KB, L2: 2.5MB, L3: 25MB
TDP95W135W
Yearly Running Cost$17.34$24.64
Other
First Seen on ChartQ1 2014Q1 2015
# of Samples130334
CPU Value615.00.0
Single Thread Rating(% diff. to max in group)1503(-23.7%)1969(0.0%)
CPU Mark(% diff. to max in group)10449(-26.2%)14167(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 27th of December 2024 - Higher results represent better performance
Intel Xeon E5-2660 v2 @ 2.20GHz
10,449
Intel Xeon E5-2666 v3 @ 2.90GHz
14,167
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 27th of December 2024 - Higher results represent better value
Intel Xeon E5-2660 v2 @ 2.20GHz
615.0
Intel Xeon E5-2666 v3 @ 2.90GHz
NA
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 27th of December 2024 - Higher results represent better performance
Intel Xeon E5-2660 v2 @ 2.20GHz
1,503
Intel Xeon E5-2666 v3 @ 2.90GHz
1,969
PassMark Software © 2008-2024
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 E5-2660 v2 @ 2.20GHz Intel Xeon E5-2666 v3 @ 2.90GHz
Max TDP95W135W
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.