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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

CPU Performance Comparison

Performance of selected CPUs can be found below. The values for the CPU are determined from thousands of PerformanceTest benchmark results and is updated daily.

Intel Xeon E5645 @ 2.40GHzIntel Xeon E3-1225 V2 @ 3.20GHz
Price$81.3 BUY NOW!$69 BUY NOW!
Socket TypeLGA1366LGA1155
CPU ClassServerServer
Clockspeed2.4 GHz3.2 GHz
Turbo SpeedUp to 2.7 GHzUp to 3.6 GHz
# of Physical Cores6 (2 logical cores per physical)4
Max TDP80W77W
Yearly Running Cost$14.60$14.05
First Seen on ChartQ2 2011Q2 2012
# of Samples65136
Single Thread Rating10921918
CPU Mark64246966
CPU Mark Rating
As of 15th of October 2019 - Higher results represent better performance
Intel Xeon E5645 @ 2.40GHz
6,424
Intel Xeon E3-1225 V2 @ 3.20GHz
6,966
CPU Value (CPU Mark / $Price)
As of 15th of October 2019 - Higher results represent better value
Intel Xeon E5645 @ 2.40GHz
79.02
Intel Xeon E3-1225 V2 @ 3.20GHz
100.96
CPU Single Thread Rating
As of 15th of October 2019 - Higher results represent better performance
Intel Xeon E5645 @ 2.40GHz
1,092
Intel Xeon E3-1225 V2 @ 3.20GHz
1,918

Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per dayAverage CPU Utilization (0-100%)1Power cost, $ per kWh2
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 E5645 @ 2.40GHzIntel Xeon E3-1225 V2 @ 3.20GHz
Max TDP80W77W
Power consumption per day (kWh)abcabc
Running cost per dayabcabc
Power consumption per year (kWh)abcabc
Running cost per yearabcabc
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.