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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 E5640 @ 2.67GHzIntel Xeon E5540 @ 2.53GHz
Price$27.991$591
Socket TypeLGA1366LGA1366
CPU ClassServerServer
Clockspeed2.7 GHz2.5 GHz
Turbo SpeedUp to 2.9 GHzUp to 2.8 GHz
# of Physical Cores4 (2 logical cores per physical)4 (2 logical cores per physical)
Max TDP80W80W
Yearly Running Cost$14.60$14.60
First Seen on ChartQ2 2010Q2 2009
# of Samples4541
Single Thread Rating11601143
CPU Mark52504747
CPU Mark Rating
As of 18th of October 2019 - Higher results represent better performance
Intel Xeon E5640 @ 2.67GHz
5,250
Intel Xeon E5540 @ 2.53GHz
4,747
CPU Value (CPU Mark / $Price)
As of 18th of October 2019 - Higher results represent better value
Intel Xeon E5640 @ 2.67GHz
187.60
Intel Xeon E5540 @ 2.53GHz
80.46
CPU Single Thread Rating
As of 18th of October 2019 - Higher results represent better performance
Intel Xeon E5640 @ 2.67GHz
1,160
Intel Xeon E5540 @ 2.53GHz
1,143

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 E5640 @ 2.67GHzIntel Xeon E5540 @ 2.53GHz
Max TDP80W80W
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.