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AMD Phenom II X3 B75 vs Phenom II X4 820

The AMD Phenom II X4 820 is newer than AMD Phenom II X3 B75 also around 14% faster in multi-threaded (CPU Mark) testing, but AMD Phenom II X3 B75 is around 11% 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 298 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 B75×AMD Phenom II X4 820+ ADD
Price Search Online Search Online
Socket TypeAM3AM3
CPU ClassDesktopDesktop
Clockspeed3.0 GHz2.8 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: 4MB
TDP95W95W
Yearly Running Cost$17.34$17.34
Other
First Seen on ChartQ3 2009Q4 2009
# of Samples68230
CPU Value35.740.0
Single Thread Rating(% diff. to max in group)1256(0.0%)1121(-10.7%)
CPU Mark(% diff. to max in group)1781(-14.4%)2081(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 21st of November 2024 - Higher results represent better performance
AMD Phenom II X3 B75
1,781
AMD Phenom II X4 820
2,081
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 21st of November 2024 - Higher results represent better value
AMD Phenom II X3 B75
35.7
AMD Phenom II X4 820
40.0
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 21st of November 2024 - Higher results represent better performance
AMD Phenom II X3 B75
1,256
AMD Phenom II X4 820
1,121
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 X3 B75 AMD Phenom II X4 820
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.