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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i5-8400T vs i3-9100F

The Intel Core i3-9100F @ 3.60GHz is newer than Intel Core i5-8400T @ 1.70GHz and is around -10% slower in multi-threaded (CPU Mark) testing. The Intel Core i3-9100F @ 3.60GHz is around 30% faster in single-thread testing. Also, Intel Core i5-8400T @ 1.70GHz uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class. The values below were tabulated from a combined 3279 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 i5-8400T @ 1.70GHz×Intel Core i3-9100F @ 3.60GHz+ ADD
Price Search Online $67.05 - BUY
Socket TypeFCLGA1151-2FCLGA1151-2
CPU ClassDesktopDesktop
Clockspeed1.7 GHz3.6 GHz
Turbo SpeedUp to 3.3 GHzUp to 4.2 GHz
# of Physical Cores6 (Threads: 6)4 (Threads: 4)
CacheL1: 384KB, L2: 1.5MB, L3: 9MBL1: 256KB, L2: 1.0MB, L3: 6MB
TDP35W65W
Yearly Running Cost$6.39$11.86
OtherIntel UHD Graphics 630
First Seen on ChartQ2 2018Q2 2019
# of Samples5502729
CPU Rank18792015
CPU Value65.4100.0
Single Thread Rating(% diff. to max in group)1906(-23.2%)2481(0.0%)
CPU Mark(% diff. to max in group)7420(0.0%)6704(-9.6%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 9th of March 2026 - Higher results represent better performance
Intel Core i5-8400T @ 1.70GHz
7,420
Intel Core i3-9100F @ 3.60GHz
6,704
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 9th of March 2026 - Higher results represent better value
Intel Core i5-8400T @ 1.70GHz
65.4
Intel Core i3-9100F @ 3.60GHz
100.0
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 9th of March 2026 - Higher results represent better performance
Intel Core i5-8400T @ 1.70GHz
1,906
Intel Core i3-9100F @ 3.60GHz
2,481
PassMark Software © 2008-2026
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 i5-8400T @ 1.70GHz Intel Core i3-9100F @ 3.60GHz
Max TDP35W65W
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.