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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 X5355 @ 2.66GHz×Intel Xeon L5420 @ 2.50GHz+ ADD
Price$309.951$27.51
Socket TypeLGA771LGA771
CPU ClassServerServer
Clockspeed2.7 GHz2.5 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores44
Max TDP120W50W
Yearly Running Cost$21.90$9.13
First Seen on ChartQ1 2009Q1 2009
# of Samples44188
Single Thread Rating10071050
CPU Mark31703501

CPU Mark Rating
As of 11th of December 2019 - Higher results represent better performance
Intel Xeon X5355 @ 2.66GHz
3,170
Intel Xeon L5420 @ 2.50GHz
3,501
CPU Value (CPU Mark / $Price)
As of 11th of December 2019 - Higher results represent better value
Intel Xeon X5355 @ 2.66GHz
10.23
Intel Xeon L5420 @ 2.50GHz
127.32
CPU Single Thread Rating
As of 11th of December 2019 - Higher results represent better performance
Intel Xeon X5355 @ 2.66GHz
1,007
Intel Xeon L5420 @ 2.50GHz
1,050

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 X5355 @ 2.66GHzIntel Xeon L5420 @ 2.50GHz
Max TDP120W50W
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.