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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 L5520 @ 2.27GHz×Intel Xeon X3450 @ 2.67GHz+ ADD
Price$12.821$79.951
Socket TypeLGA1366LGA1156
CPU ClassServerServer
Clockspeed2.3 GHz3.2 GHz
Turbo SpeedUp to 2.5 GHzUp to 3.2 GHz
# of Physical Cores4 (2 logical cores per physical)4 (2 logical cores per physical)
Max TDP60W95W
Yearly Running Cost$10.95$17.34
First Seen on ChartQ1 2010Q4 2009
# of Samples20117
Single Thread Rating10441154
CPU Mark43244748

CPU Mark Rating
As of 20th of November 2019 - Higher results represent better performance
Intel Xeon L5520 @ 2.27GHz
 4,324
Intel Xeon X3450 @ 2.67GHz
 4,748
PassMark Software © 2008-2019
CPU Value (CPU Mark / $Price)
As of 20th of November 2019 - Higher results represent better value
Intel Xeon L5520 @ 2.27GHz
 337.35
Intel Xeon X3450 @ 2.67GHz
 59.39
PassMark Software © 2008-2019
CPU Single Thread Rating
As of 20th of November 2019 - Higher results represent better performance
Intel Xeon L5520 @ 2.27GHz
 1,044
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 L5520 @ 2.27GHzIntel Xeon X3450 @ 2.67GHz
Max TDP60W95W
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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.