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AMD Phenom II X2 B55 vs Phenom II X2 550

The AMD Phenom II X2 B55 is newer than AMD Phenom II X2 550 and has comparable multi-threaded (CPU Mark) and single-thread rating. 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 520 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 X2 B55×AMD Phenom II X2 550+ ADD
Price Search Online Search Online
Socket TypeAM3AM2+/AM3
CPU ClassDesktopDesktop
Clockspeed3.0 GHz3.1 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 256KB, L2: 1.0MB, L3: 6MBL1: 256KB, L2: 1.0MB, L3: 6MB
TDP80W80W
Yearly Running Cost$14.60$14.60
Other
First Seen on ChartQ4 2009Q2 2009
# of Samples66454
CPU Value31.228.2
Single Thread Rating(% diff. to max in group)12013(-2.6%)12333(0.0%)
CPU Mark(% diff. to max in group)1183(0.0%)1167(-1.4%)
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 24th of November 2024 - Higher results represent better performance
AMD Phenom II X2 B55
1,183
AMD Phenom II X2 550
1,167
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 24th of November 2024 - Higher results represent better value
AMD Phenom II X2 B55
31.2
AMD Phenom II X2 550
28.2
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 24th of November 2024 - Higher results represent better performance
AMD Phenom II X2 B55
1,201
AMD Phenom II X2 550
1,233
PassMark Software © 2008-2024
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 X2 B55 AMD Phenom II X2 550
Max TDP80W80W
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.