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CPU Benchmarks

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AMD Phenom II X4 B65 vs Athlon II X4 640

The AMD Phenom II X4 B65 is newer than AMD Athlon II X4 640 also around 17% faster in multi-threaded (CPU Mark) testing, it is around 12% faster in single-thread testing. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 1815 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.

  • 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 Phenom II X4 B65×AMD Athlon II X4 640+ ADD
Price Search Online $11.99 - BUY
Socket TypeAM2+/AM3AM3
CPU ClassDesktopDesktop
Clockspeed3.4 GHz3.0 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
CacheL1: 384KB, L2: 1.5MB, L3: 6MBL1: 512KB, L2: 2.0MB, L3: 6MB
TDPNA295W
Yearly Running CostNA$17.34
Other
First Seen on ChartQ1 2011Q2 2010
# of Samples191796
CPU Value0.0187.3
Single Thread Rating(% diff. to max in group)1370(0.0%)1212(-11.6%)
CPU Mark(% diff. to max in group)2690(0.0%)2246(-16.5%)
2 - Information not available. Do you know? Notify Us.

CPU Mark Rating
As of 3rd of January 2025 - Higher results represent better performance
AMD Phenom II X4 B65
2,690
AMD Athlon II X4 640
2,246
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 3rd of January 2025 - Higher results represent better value
AMD Phenom II X4 B65
NA
AMD Athlon II X4 640
187.3
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 3rd of January 2025 - Higher results represent better performance
AMD Phenom II X4 B65
1,370
AMD Athlon II X4 640
1,212
PassMark Software © 2008-2025
Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per day Average CPU Utilization (0-100%)1 Power cost, $ per kWh2
8
25
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 B65 AMD Athlon II X4 640
Max TDPNA95W
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.