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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 E5645 @ 2.40GHz×AMD Opteron 6276+ ADD
Price$81.311$169 BUY NOW!
Socket TypeLGA1366Socket G34
CPU ClassServerServer
Clockspeed2.4 GHz2.3 GHz
Turbo SpeedUp to 2.7 GHzUp to 2.6 GHz
# of Physical Cores6 (2 logical cores per physical)8 (2 logical cores per physical)
Max TDP80W115W
Yearly Running Cost$14.60$20.99
First Seen on ChartQ2 2011Q1 2013
# of Samples673
Single Thread Rating10931030
CPU Mark64228889

CPU Mark Rating
As of 6th of December 2019 - Higher results represent better performance
Intel Xeon E5645 @ 2.40GHz
6,422
AMD Opteron 6276
8,889
CPU Value (CPU Mark / $Price)
As of 6th of December 2019 - Higher results represent better value
Intel Xeon E5645 @ 2.40GHz
78.99
AMD Opteron 6276
52.60
CPU Single Thread Rating
As of 6th of December 2019 - Higher results represent better performance
Intel Xeon E5645 @ 2.40GHz
1,093
AMD Opteron 6276
1,030

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 @ 2.40GHzAMD Opteron 6276
Max TDP80W115W
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.