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Intel i3-10300 vs i5-8400

The Intel Core i3-10300 @ 3.70GHz is newer than Intel Core i5-8400 @ 2.80GHz, while the multi-threaded (CPU Mark) is simliar, Intel Core i3-10300 @ 3.70GHz 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 6804 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 i3-10300 @ 3.70GHz×Intel Core i5-8400 @ 2.80GHz+ ADD
Price $151.9 - BUY $115 - BUY
Socket TypeFCLGA1200FCLGA1151-2
CPU ClassDesktopDesktop
Clockspeed3.7 GHz2.8 GHz
Turbo SpeedUp to 4.4 GHzUp to 4.0 GHz
# of Physical Cores4 (Threads: 8)6 (Threads: 6)
CacheL1: 256KB, L2: 1.0MB, L3: 8MBL1: 384KB, L2: 1.5MB, L3: 9MB
TDP65W65W
Yearly Running Cost$11.86$11.86
OtherIntel UHD Graphics 630Intel UHD Graphics 630
First Seen on ChartQ2 2020Q4 2017
# of Samples576747
CPU Value61.180.3
Single Thread Rating(% diff. to max in group)2689(0.0%)2381(-11.5%)
CPU Mark(% diff. to max in group)9288(0.0%)9238(-0.5%)

CPU Mark Rating
As of 28th of November 2024 - Higher results represent better performance
Intel Core i3-10300 @ 3.70GHz
9,288
Intel Core i5-8400 @ 2.80GHz
9,238
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 28th of November 2024 - Higher results represent better value
Intel Core i3-10300 @ 3.70GHz
61.1
Intel Core i5-8400 @ 2.80GHz
80.3
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 28th of November 2024 - Higher results represent better performance
Intel Core i3-10300 @ 3.70GHz
2,689
Intel Core i5-8400 @ 2.80GHz
2,381
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.
Intel Core i3-10300 @ 3.70GHz Intel Core i5-8400 @ 2.80GHz
Max TDP65W65W
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.