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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 945 vs AMD Phenom II X4 840

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

×AMD Phenom II X4 945×AMD Phenom II X4 840+ ADD
Price$26.99
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$23.84
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Socket TypeAM3AM2+/AM3
CPU ClassDesktopDesktop
Clockspeed3.0 GHz3.2 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDP125W95W
Yearly Running Cost$22.81$17.34
Other
First Seen on ChartQ2 2009Q1 2011
# of Samples1558697
Single Thread Rating(% diff. to max in group)1226(-6.4%)1310(0.0%)
CPU Mark(% diff. to max in group)2282(-3.3%)2361(0.0%)

CPU Mark Rating
As of 3rd of October 2022 - Higher results represent better performance
AMD Phenom II X4 945
2,282
AMD Phenom II X4 840
2,361
CPU Value (CPU Mark / $Price)
As of 3rd of October 2022 - Higher results represent better value
AMD Phenom II X4 945
84.56
AMD Phenom II X4 840
99.04
CPU Single Thread Rating
As of 3rd of October 2022 - Higher results represent better performance
AMD Phenom II X4 945
1,226
AMD Phenom II X4 840
1,310

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.
AMD Phenom II X4 945AMD Phenom II X4 840
Max TDP125W95W
Power consumption per day (kWh)NANA
Running cost per dayNANA
Power consumption per year (kWh)NANA
Running cost per yearNANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.