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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 X5550 @ 2.67GHz×Intel Xeon E5450 @ 3.00GHz+ ADD
Price$304.851$298.941
Socket TypeLGA1366LGA771
CPU ClassServerServer
Clockspeed2.7 GHz3.0 GHz
Turbo SpeedUp to 3.1 GHzNot Supported
# of Physical Cores4 (2 logical cores per physical)4
Max TDP95W80W
Yearly Running Cost$17.34$14.60
First Seen on ChartQ2 2009Q2 2009
# of Samples891093
Single Thread Rating12621266
CPU Mark52704179

CPU Mark Rating
As of 13th of December 2019 - Higher results represent better performance
Intel Xeon X5550 @ 2.67GHz
 5,270
Intel Xeon E5450 @ 3.00GHz
 4,179
PassMark Software © 2008-2019
CPU Value (CPU Mark / $Price)
As of 13th of December 2019 - Higher results represent better value
Intel Xeon X5550 @ 2.67GHz
 17.29
Intel Xeon E5450 @ 3.00GHz
 13.98
PassMark Software © 2008-2019
CPU Single Thread Rating
As of 13th of December 2019 - Higher results represent better performance
Intel Xeon X5550 @ 2.67GHz
 1,262
Intel Xeon E5450 @ 3.00GHz
 1,266
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 X5550 @ 2.67GHzIntel Xeon E5450 @ 3.00GHz
Max TDP95W80W
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Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.