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AMD Athlon 5350 APU vs Intel Core2 Quad Q8400

The AMD Athlon 5350 APU is newer than Intel Core2 Quad Q8400 @ 2.66GHz, while Intel Core2 Quad Q8400 @ 2.66GHz is around 14% faster in multi-threaded (CPU Mark) testing, it is around 39% faster in single-thread testing. However, AMD Athlon 5350 APU uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 2308 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 5350 APU×Intel Core2 Quad Q8400 @ 2.66GHz+ ADD
Price Search Online Search Online
Socket TypeAM1,FS1BLGA775
CPU ClassDesktopDesktop
Clockspeed2.1 GHz2.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
CacheL1: 256KB, L2: 2.0MB, L1: 256KB, L2: 4.0MB, L3: 0MB
TDP25W95W
Yearly Running Cost$4.56$17.34
Otherwith Radeon R3
First Seen on ChartQ1 2014Q2 2009
# of Samples6651643
CPU Value12.116.0
Single Thread Rating(% diff. to max in group)698(-38.8%)1141(0.0%)
CPU Mark(% diff. to max in group)1785(-13.6%)2065(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 7th of January 2025 - Higher results represent better performance
AMD Athlon 5350 APU
1,785
Intel Core2 Quad Q8400 @ 2.66GHz
2,065
CPU Value (CPU Mark / $Price)
As of 7th of January 2025 - Higher results represent better value
AMD Athlon 5350 APU
12.1
Intel Core2 Quad Q8400 @ 2.66GHz
16.0
CPU Single Thread Rating
As of 7th of January 2025 - Higher results represent better performance
AMD Athlon 5350 APU
698
Intel Core2 Quad Q8400 @ 2.66GHz
1,141
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 5350 APU Intel Core2 Quad Q8400 @ 2.66GHz
Max TDP25W95W
Power consumption per day (kWh)0.050.19
Running cost per day$0.013$0.048
Power consumption per year (kWh)18.369.3
Running cost per year$4.56$17.34
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.