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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i5-8400T vs i7-8700T

The Intel Core i5-8400T @ 1.70GHz is newer than Intel Core i7-8700T @ 2.40GHz and is around -27% slower in multi-threaded (CPU Mark) testing. The Intel Core i5-8400T @ 1.70GHz is around -17% slower 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 1110 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 i7-8700T @ 2.40GHz+ ADD
Price $113.37 - BUY Search Online
Socket TypeFCLGA1151-2FCLGA1151-2
CPU ClassDesktopDesktop
Clockspeed1.7 GHz2.4 GHz
Turbo SpeedUp to 3.3 GHzUp to 4.0 GHz
# of Physical Cores6 (Threads: 6)6 (Threads: 12)
CacheL1: 384KB, L2: 1.5MB, L3: 9MBL1: 384KB, L2: 1.5MB, L3: 12MB
TDP35W35W
Yearly Running Cost$6.39$6.39
OtherIntel UHD Graphics 630Intel UHD Graphics 630
First Seen on ChartQ2 2018Q1 2018
# of Samples406704
CPU Value65.634.0
Single Thread Rating(% diff. to max in group)1913(-16.9%)2302(0.0%)
CPU Mark(% diff. to max in group)7441(-26.8%)10163(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 24th of April 2025 - Higher results represent better performance
Intel Core i5-8400T @ 1.70GHz
7,441
Intel Core i7-8700T @ 2.40GHz
10,163
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 24th of April 2025 - Higher results represent better value
Intel Core i5-8400T @ 1.70GHz
65.6
Intel Core i7-8700T @ 2.40GHz
34.0
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 24th of April 2025 - Higher results represent better performance
Intel Core i5-8400T @ 1.70GHz
1,913
Intel Core i7-8700T @ 2.40GHz
2,302
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 i5-8400T @ 1.70GHz Intel Core i7-8700T @ 2.40GHz
Max TDP35W35W
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.