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Intel Xeon E5-1680 v2 vs Xeon E5-2666 v3

The Intel Xeon E5-2666 v3 @ 2.90GHz is newer than Intel Xeon E5-1680 v2 @ 3.00GHz also around 11% faster in multi-threaded (CPU Mark) testing, but Intel Xeon E5-1680 v2 @ 3.00GHz is around 6% faster in single-thread testing. Both CPUs operates at simliar power levels (TDP). All the CPUs in this comparison belong in the Server CPU Class.The values below were tabulated from a combined 609 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 E5-1680 v2 @ 3.00GHz×Intel Xeon E5-2666 v3 @ 2.90GHz+ ADD
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Socket TypeLGA 2011LGA2011-v3
CPU ClassServerServer
Clockspeed3.0 GHz2.9 GHz
Turbo SpeedUp to 3.9 GHzUp to 3.5 GHz
# of Physical Cores8 (Threads: 16)10 (Threads: 20)
CacheL1: 512KB, L2: 2.0MB, L3: 25MBL1: 640KB, L2: 2.5MB, L3: 25MB
TDP130W135W
Yearly Running Cost$23.73$24.64
Other
First Seen on ChartQ3 2014Q1 2015
# of Samples204405
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)2095(0.0%)1966(-6.2%)
CPU Mark(% diff. to max in group)12545(-11.1%)14110(0.0%)

CPU Mark Rating
As of 21st of April 2025 - Higher results represent better performance
Intel Xeon E5-1680 v2 @ 3.00GHz
12,545
Intel Xeon E5-2666 v3 @ 2.90GHz
14,110
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 21st of April 2025 - Higher results represent better performance
Intel Xeon E5-1680 v2 @ 3.00GHz
2,095
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 E5-1680 v2 @ 3.00GHz Intel Xeon E5-2666 v3 @ 2.90GHz
Max TDP130W135W
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.