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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i5-8400 vs i5-9400F vs i5-9600KF

The CPUs selected in this comparison belong in different CPU Classes: Desktop, Laptop. Consider, selecting CPUs from simliar CPU Class for more apt comparison.The values below were tabulated from a combined 15002 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 Core i5-8400 @ 2.80GHz×Intel Core i5-9400F @ 2.90GHz×Intel Core i5-9600KF @ 3.70GHz+ ADD
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Socket TypeFCLGA1151-2FCLGA1151-2FCLGA1151-2
CPU ClassDesktopDesktop, LaptopDesktop
Clockspeed2.8 GHz2.9 GHz3.7 GHz
Turbo SpeedUp to 4.0 GHzUp to 4.1 GHzUp to 4.6 GHz
# of Physical Cores6 (Threads: 6)6 (Threads: 6)6 (Threads: 6)
CacheL1: 384KB, L2: 1.5MB, L3: 9MBL1: 384KB, L2: 1.5MB, L3: 9MBL1: 384KB, L2: 1.5MB, L3: 9MB
TDP65W65W95W
Yearly Running Cost$11.86$11.86$17.34
OtherIntel UHD Graphics 630
First Seen on ChartQ4 2017Q1 2019Q2 2019
# of Samples753061551317
CPU Value0.00.00.0
Single Thread Rating(% diff. to max in group)2373(-13.0%)2431(-10.9%)2728(0.0%)
CPU Mark(% diff. to max in group)9223(-13.5%)9459(-11.3%)10668(0.0%)

CPU Mark Rating
As of 18th of April 2025 - Higher results represent better performance
Intel Core i5-8400 @ 2.80GHz
9,223
Intel Core i5-9400F @ 2.90GHz
9,459
Intel Core i5-9600KF @ 3.70GHz
10,668
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 18th of April 2025 - Higher results represent better performance
Intel Core i5-8400 @ 2.80GHz
2,373
Intel Core i5-9400F @ 2.90GHz
2,431
Intel Core i5-9600KF @ 3.70GHz
2,728
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 Core i5-8400 @ 2.80GHz Intel Core i5-9400F @ 2.90GHz Intel Core i5-9600KF @ 3.70GHz
Max TDP65W65W95W
Power consumption per day (kWh)NANANA
Running cost per dayNANANA
Power consumption per year (kWh)NANANA
Running cost per yearNANANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.