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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X3 B77 vs Phenom 9550 Quad-

The AMD Phenom II X3 B77 is newer than AMD Phenom 9550 Quad-Core also around 10% faster in multi-threaded (CPU Mark) testing, it is around 34% faster in single-thread testing. Both CPUs operates at simliar power levels (TDP). All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 492 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 X3 B77×AMD Phenom 9550 Quad-Core+ ADD
Price Search Online Search Online
Socket TypeAM2+/AM3AM2+
CPU ClassDesktopDesktop
Clockspeed3.2 GHz2.2 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores3 (Threads: 3)4 (Threads: 4)
CacheL1: 384KB, L2: 1.5MB, L3: 6MBL1: 512KB, L2: 2.0MB, L3: 2MB
TDP95W95W
Yearly Running Cost$17.34$17.34
Other
First Seen on ChartQ2 2012Q4 2008
# of Samples5487
CPU Value82.771.7
Single Thread Rating(% diff. to max in group)1310(0.0%)862(-34.2%)
CPU Mark(% diff. to max in group)1844(0.0%)1656(-10.2%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 26th of February 2025 - Higher results represent better performance
AMD Phenom II X3 B77
1,844
AMD Phenom 9550 Quad-Core
1,656
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 26th of February 2025 - Higher results represent better value
AMD Phenom II X3 B77
82.7
AMD Phenom 9550 Quad-Core
71.7
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 26th of February 2025 - Higher results represent better performance
AMD Phenom II X3 B77
1,310
AMD Phenom 9550 Quad-Core
862
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 X3 B77 AMD Phenom 9550 Quad-Core
Max TDP95W95W
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.