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AMD Phenom II X4 977 vs A8-5500B APU

The AMD A8-5500B APU is newer than AMD Phenom II X4 977 also around 9% faster in multi-threaded (CPU Mark) testing but the CPUs have comparable single-thread rating. However, AMD Phenom II X4 977 uses around 38% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 118 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 977×AMD A8-5500B APU+ ADD
Price Search Online Search Online
Socket TypeNA2FM2
CPU ClassDesktopDesktop
Clockspeed3.2 GHz3.2 GHz
Turbo SpeedNot SupportedUp to 3.7 GHz
# of Physical Cores4 (Threads: 4)4 (in 2 physical modules)
CacheL1: 512KB, L2: 2.0MB, L3: 6MBL1: 320KB, L2: 8.0MB,
TDP95W65W
Yearly Running Cost$17.34$11.86
Other
First Seen on ChartQ4 2012Q1 2013
# of Samples1117
CPU Value0.053.3
Single Thread Rating(% diff. to max in group)1368(0.0%)1329(-2.9%)
CPU Mark(% diff. to max in group)2377(-9.1%)2615(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
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CPU Mark Rating
As of 9th of January 2025 - Higher results represent better performance
AMD Phenom II X4 977
2,377
AMD A8-5500B APU
2,615
CPU Value (CPU Mark / $Price)
As of 9th of January 2025 - Higher results represent better value
AMD Phenom II X4 977
NA
AMD A8-5500B APU
53.3
CPU Single Thread Rating
As of 9th of January 2025 - Higher results represent better performance
AMD Phenom II X4 977
1,368
AMD A8-5500B APU
1,329
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 977 AMD A8-5500B APU
Max TDP95W65W
Power consumption per day (kWh)0.190.13
Running cost per day$0.048$0.033
Power consumption per year (kWh)69.347.5
Running cost per year$17.34$11.86
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.