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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Pentium 4 3.80GHz vs AMD A8-6500 APU vs i5-6400

All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 5712 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.

×Intel Pentium 4 3.80GHz×AMD A8-6500 APU×Intel Core i5-6400 @ 2.70GHz+ ADD
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Socket TypeNA2FM2LGA 1151
CPU ClassDesktopDesktopDesktop
Clockspeed3.8 GHz3.5 GHz2.7 GHz
Turbo SpeedNot SupportedUp to 4.1 GHzUp to 3.3 GHz
# of Physical Cores1 (Threads: 2)4 (in 2 physical modules)4 (Threads: 4)
CacheL1: 1KB, L3: 0MBL1: 320KB, L2: 8.0MB, L1: 256KB, L2: 1.0MB, L3: 6MB
TDP65W65W65W
Yearly Running Cost$11.86$11.86$11.86
Other
First Seen on ChartQ4 2008Q3 2013Q3 2015
# of Samples745745064
CPU Value0.0101.70.0
Single Thread Rating(% diff. to max in group)6743(-65.5%)1475(-24.5%)1953(0.0%)
CPU Mark(% diff. to max in group)356(-93.1%)2828(-45.3%)5169(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
2 - Information not available. Do you know? Notify Us.
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 27th of March 2025 - Higher results represent better performance
Intel Pentium 4 3.80GHz
356
AMD A8-6500 APU
2,828
Intel Core i5-6400 @ 2.70GHz
5,169
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 27th of March 2025 - Higher results represent better value
Intel Pentium 4 3.80GHz
NA
AMD A8-6500 APU
101.7
Intel Core i5-6400 @ 2.70GHz
NA
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 27th of March 2025 - Higher results represent better performance
Intel Pentium 4 3.80GHz
674
AMD A8-6500 APU
1,475
Intel Core i5-6400 @ 2.70GHz
1,953
PassMark Software © 2008-2025
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.
Intel Pentium 4 3.80GHz AMD A8-6500 APU Intel Core i5-6400 @ 2.70GHz
Max TDP65W65W65W
Power consumption per day (kWh)0.130.130.13
Running cost per day$0.033$0.033$0.033
Power consumption per year (kWh)47.547.547.5
Running cost per year$11.86$11.86$11.86
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.