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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Athlon II X4 638 Quad-Core vs AMD Phenom II X4 955

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

  • The first section will show basic information for each CPU selected.
  • The additional graphs shows the CPU Mark and Single Thread values of each CPU selected.
  • An accompany graph, if price data is available, will shows the value for money, in terms of the CPU Mark/Thread Rating per dollar.
  • The last section will show approximate yearly running costs for the CPUs.
×AMD Athlon II X4 638 Quad-Core×AMD Phenom II X4 955+ ADD
Price Search Online Search Online
Socket TypeFM1AM3
CPU ClassDesktopDesktop
Clockspeed2.7 GHz3.2 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
CacheL1: 512KB, L2: 4.0MB, L1: 512KB, L2: 2.0MB, L3: 6MB
TDP65W125W
Yearly Running Cost$11.86$22.81
Other
First Seen on ChartQ2 2015Q1 2009
# of Samples63975
CPU Value35.842.4
Single Thread Rating(% diff. to max in group)1163(-10.5%)1299(0.0%)
CPU Mark(% diff. to max in group)2250(-10.1%)2503(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 23rd of February 2024 - Higher results represent better performance
AMD Athlon II X4 638 Quad-Core
2,250
AMD Phenom II X4 955
2,503
CPU Value (CPU Mark / $Price)
As of 23rd of February 2024 - Higher results represent better value
AMD Athlon II X4 638 Quad-Core
35.8
AMD Phenom II X4 955
42.4
CPU Single Thread Rating
As of 23rd of February 2024 - Higher results represent better performance
AMD Athlon II X4 638 Quad-Core
1,163
AMD Phenom II X4 955
1,299

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 Athlon II X4 638 Quad-CoreAMD Phenom II X4 955
Max TDP65W125W
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.