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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Xeon E5645 @ 2.40GHz vs Intel Xeon E5640 @ 2.67GHz

The values for the CPUs below are determined from thousands of PerformanceTest benchmark results and are updated daily.

×Intel Xeon E5645 @ 2.40GHz×Intel Xeon E5640 @ 2.67GHz+ ADD
Price$95.081$67.61
Socket TypeLGA1366LGA1366
CPU ClassServerServer
Clockspeed2.4 GHz2.7 GHz
Turbo SpeedUp to 2.7 GHzUp to 2.9 GHz
# of Physical Cores6 (Threads: 12)4 (Threads: 8)
Max TDP80W80W
Yearly Running Cost$14.60$14.60
First Seen on ChartQ2 2011Q2 2010
# of Samples7245
Cross-Platform Rating101210
Single Thread Rating11351193
CPU Mark46864045

CPU Mark Rating
As of 24th of May 2020 - Higher results represent better performance
Intel Xeon E5645 @ 2.40GHz
4,686
Intel Xeon E5640 @ 2.67GHz
4,045
CPU Value (CPU Mark / $Price)
As of 24th of May 2020 - Higher results represent better value
Intel Xeon E5645 @ 2.40GHz
49.29
Intel Xeon E5640 @ 2.67GHz
59.84
CPU Single Thread Rating
As of 24th of May 2020 - Higher results represent better performance
Intel Xeon E5645 @ 2.40GHz
1,135
Intel Xeon E5640 @ 2.67GHz
1,193

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 E5645 @ 2.40GHzIntel Xeon E5640 @ 2.67GHz
Max TDP80W80W
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.