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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 B40 vs AMD Phenom II X4 B55

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


×AMD Phenom II X4 B40×AMD Phenom II X4 B55+ ADD
PriceSearch OnlineSearch Online
Socket TypeNA2AM2+/AM3
CPU ClassDesktopDesktop
Clockspeed3.0 GHz3.3 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDPNA2NA2
Yearly Running CostNANA
First Seen on ChartQ1 2010Q1 2010
# of Samples70538
Single Thread Rating12311319
CPU Mark22382465
2 - Information not available. Do you know? Notify Us.

CPU Mark Rating
As of 21st of May 2022 - Higher results represent better performance
AMD Phenom II X4 B40
 2,238
AMD Phenom II X4 B55
 2,465
PassMark Software © 2008-2022
CPU Single Thread Rating
As of 21st of May 2022 - Higher results represent better performance
AMD Phenom II X4 B40
 1,231
AMD Phenom II X4 B55
 1,319
PassMark Software © 2008-2022

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 B40AMD Phenom II X4 B55
Max TDPNANA
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.