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AMD Athlon 64 3700+ vs Athlon 64 FX-55

The AMD Athlon 64 FX-55 is newer than AMD Athlon 64 3700+ is around 16% faster in single-thread testing. Also, AMD Athlon 64 FX-55 uses around 16% more power. All the CPUs in this comparison belong in the Desktop CPU Class. The values below were tabulated from a combined 121 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 Athlon 64 3700+×AMD Athlon 64 FX-55+ ADD
Price Search Online Search Online
Socket Type939939
CPU ClassDesktopDesktop
Clockspeed2.2 GHz2.6 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores1 (Threads: 1)1 (Threads: 1)
CacheL1: 128KB, L2: 1.0MB, L1: 128KB, L2: 1.0MB,
TDP89W104W
Yearly Running Cost$16.24$18.98
Other
First Seen on ChartQ4 2008Q1 2009
# of Samples10813
CPU Rank52145199
CPU Value4.46.2
Single Thread Rating(% diff. to max in group)4353(-14.0%)5053(0.0%)
CPU Mark(% diff. to max in group)394(-2.6%)404(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
3 - Single thread rating may be higher than the overall rating, thread performance is just one component of the CPU Mark.

CPU Mark Rating
As of 11th of February 2026 - Higher results represent better performance
AMD Athlon 64 3700+
394
AMD Athlon 64 FX-55
404
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 11th of February 2026 - Higher results represent better value
AMD Athlon 64 3700+
4.4
AMD Athlon 64 FX-55
6.2
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 11th of February 2026 - Higher results represent better performance
AMD Athlon 64 3700+
435
AMD Athlon 64 FX-55
505
PassMark Software © 2008-2026
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 Athlon 64 3700+ AMD Athlon 64 FX-55
Max TDP89W104W
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.