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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i5-8400 vs i7-8565U

The Intel Core i7-8565U @ 1.80GHz is newer than Intel Core i5-8400 @ 2.80GHz, while Intel Core i5-8400 @ 2.80GHz is around 34% faster in multi-threaded (CPU Mark) testing, it is around 10% faster in single-thread testing. However, Intel Core i7-8565U @ 1.80GHz uses substantially less power. 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 10112 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 i7-8565U @ 1.80GHz+ ADD
Price $82 - BUY Search Online
Socket TypeFCLGA1151-2FCBGA1356
CPU ClassDesktopLaptop
Clockspeed2.8 GHz1.8 GHz
Turbo SpeedUp to 4.0 GHzUp to 4.6 GHz
# of Physical Cores6 (Threads: 6)4 (Threads: 8)
CacheL1: 384KB, L2: 1.5MB, L3: 9MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP65W15W
Yearly Running Cost$11.86$2.74
OtherIntel UHD Graphics 630Intel UHD Graphics 620
First Seen on ChartQ4 2017Q3 2018
# of Samples67033409
CPU Value112.69.9
Single Thread Rating(% diff. to max in group)2381(0.0%)2146(-9.9%)
CPU Mark(% diff. to max in group)9234(0.0%)6061(-34.4%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 11th of November 2024 - Higher results represent better performance
Intel Core i5-8400 @ 2.80GHz
9,234
Intel Core i7-8565U @ 1.80GHz
6,061
CPU Value (CPU Mark / $Price)
As of 11th of November 2024 - Higher results represent better value
Intel Core i5-8400 @ 2.80GHz
112.6
Intel Core i7-8565U @ 1.80GHz
9.9
CPU Single Thread Rating
As of 11th of November 2024 - Higher results represent better performance
Intel Core i5-8400 @ 2.80GHz
2,381
Intel Core i7-8565U @ 1.80GHz
2,146
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 i7-8565U @ 1.80GHz
Max TDP65W15W
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.