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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 X5677 @ 3.47GHz×Intel Xeon E5640 @ 2.67GHz+ ADD
Price$851$27.991
Socket TypeLGA1366LGA1366
CPU ClassServerServer
Clockspeed3.5 GHz2.7 GHz
Turbo SpeedUp to 3.7 GHzUp to 2.9 GHz
# of Physical Cores4 (2 logical cores per physical)4 (2 logical cores per physical)
Max TDP130W80W
Yearly Running Cost$23.73$14.60
First Seen on ChartQ1 2010Q2 2010
# of Samples6245
Single Thread Rating15051160
CPU Mark67545250

CPU Mark Rating
As of 12th of November 2019 - Higher results represent better performance
Intel Xeon X5677 @ 3.47GHz
6,754
Intel Xeon E5640 @ 2.67GHz
5,250
CPU Value (CPU Mark / $Price)
As of 12th of November 2019 - Higher results represent better value
Intel Xeon X5677 @ 3.47GHz
79.46
Intel Xeon E5640 @ 2.67GHz
187.60
CPU Single Thread Rating
As of 12th of November 2019 - Higher results represent better performance
Intel Xeon X5677 @ 3.47GHz
1,505
Intel Xeon E5640 @ 2.67GHz
1,160

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 X5677 @ 3.47GHzIntel Xeon E5640 @ 2.67GHz
Max TDP130W80W
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.