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CPU Benchmarks

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

The Intel Xeon E5-2666 v3 @ 2.90GHz is newer than Intel Xeon E5-2650 v3 @ 2.30GHz also around 17% faster in multi-threaded (CPU Mark) testing, it is around 17% faster in single-thread testing. However, Intel Xeon E5-2666 v3 @ 2.90GHz uses around 25% more power. All the CPUs in this comparison belong in the Server CPU Class.The values below were tabulated from a combined 632 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 E5-2666 v3 @ 2.90GHz×Intel Xeon E5-2650 v3 @ 2.30GHz+ ADD
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Socket TypeLGA2011-v3LGA2011-v3
CPU ClassServerServer
Clockspeed2.9 GHz2.3 GHz
Turbo SpeedUp to 3.5 GHzUp to 3.0 GHz
# of Physical Cores10 (Threads: 20)10 (Threads: 20)
CacheL1: 640KB, L2: 2.5MB, L3: 25MBL1: 640KB, L2: 2.5MB, L3: 25MB
TDP135W105W
Yearly Running Cost$24.64$19.16
Other
First Seen on ChartQ1 2015Q3 2014
# of Samples385247
CPU Value0.06.2
Single Thread Rating(% diff. to max in group)1967(0.0%)1639(-16.7%)
CPU Mark(% diff. to max in group)14136(0.0%)11769(-16.7%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 8th of April 2025 - Higher results represent better performance
Intel Xeon E5-2666 v3 @ 2.90GHz
14,136
Intel Xeon E5-2650 v3 @ 2.30GHz
11,769
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 8th of April 2025 - Higher results represent better value
Intel Xeon E5-2666 v3 @ 2.90GHz
NA
Intel Xeon E5-2650 v3 @ 2.30GHz
6.2
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 8th of April 2025 - Higher results represent better performance
Intel Xeon E5-2666 v3 @ 2.90GHz
1,967
Intel Xeon E5-2650 v3 @ 2.30GHz
1,639
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 E5-2666 v3 @ 2.90GHz Intel Xeon E5-2650 v3 @ 2.30GHz
Max TDP135W105W
Power consumption per day (kWh)0.270.21
Running cost per day$0.068$0.052
Power consumption per year (kWh)98.676.6
Running cost per year$24.64$19.16
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.