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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 E5540 @ 2.53GHz×Intel Xeon X3450 @ 2.67GHz+ ADD
Price$591$79.951
Socket TypeLGA1366LGA1156
CPU ClassServerServer
Clockspeed2.5 GHz3.2 GHz
Turbo SpeedUp to 2.8 GHzUp to 3.2 GHz
# of Physical Cores4 (2 logical cores per physical)4 (2 logical cores per physical)
Max TDP80W95W
Yearly Running Cost$14.60$17.34
First Seen on ChartQ2 2009Q4 2009
# of Samples41117
Single Thread Rating11431154
CPU Mark47474748

CPU Mark Rating
As of 6th of December 2019 - Higher results represent better performance
Intel Xeon E5540 @ 2.53GHz
 4,747
Intel Xeon X3450 @ 2.67GHz
 4,748
PassMark Software © 2008-2019
CPU Value (CPU Mark / $Price)
As of 6th of December 2019 - Higher results represent better value
Intel Xeon E5540 @ 2.53GHz
 80.46
Intel Xeon X3450 @ 2.67GHz
 59.39
PassMark Software © 2008-2019
CPU Single Thread Rating
As of 6th of December 2019 - Higher results represent better performance
Intel Xeon E5540 @ 2.53GHz
 1,143
Intel Xeon X3450 @ 2.67GHz
 1,154
PassMark Software © 2008-2019

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 E5540 @ 2.53GHzIntel Xeon X3450 @ 2.67GHz
Max TDP80W95W
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.