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AMD Athlon II X3 450 vs Phenom II X4 920

The AMD Athlon II X3 450 is newer than AMD Phenom II X4 920, while AMD Phenom II X4 920 is around 14% faster in multi-threaded (CPU Mark) testing, but AMD Athlon II X3 450 is around 13% faster in single-thread testing. However, AMD Phenom II X4 920 uses around 27% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 785 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 II X3 450×AMD Phenom II X4 920+ ADD
Price $25.95 - BUY Search Online
Socket TypeAM3AM2+
CPU ClassDesktopDesktop
Clockspeed3.2 GHz2.8 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores3 (Threads: 3)4 (Threads: 4)
CacheL1: 384KB, L2: 1.5MB, L1: 512KB, L2: 2.0MB, L3: 6MB
TDP95W125W
Yearly Running Cost$17.34$22.81
Other
First Seen on ChartQ4 2010Q1 2009
# of Samples589196
CPU Value71.277.3
Single Thread Rating(% diff. to max in group)1301(0.0%)1130(-13.1%)
CPU Mark(% diff. to max in group)1847(-14.4%)2156(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 16th of October 2024 - Higher results represent better performance
AMD Athlon II X3 450
1,847
AMD Phenom II X4 920
2,156
CPU Value (CPU Mark / $Price)
As of 16th of October 2024 - Higher results represent better value
AMD Athlon II X3 450
71.2
AMD Phenom II X4 920
77.3
CPU Single Thread Rating
As of 16th of October 2024 - Higher results represent better performance
AMD Athlon II X3 450
1,301
AMD Phenom II X4 920
1,130
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 II X3 450 AMD Phenom II X4 920
Max TDP95W125W
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.