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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i5-7400 vs i5-6600K

The Intel Core i5-7400 @ 3.00GHz is newer than Intel Core i5-6600K @ 3.50GHz, while Intel Core i5-6600K @ 3.50GHz is around 13% faster in multi-threaded (CPU Mark) testing, it is around 10% faster in single-thread testing. However, Intel Core i5-6600K @ 3.50GHz uses around 33% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 11565 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 i5-7400 @ 3.00GHz×Intel Core i5-6600K @ 3.50GHz+ ADD
Price $96 - BUY $88.75 - BUY
Socket TypeFCLGA1151FCLGA1151
CPU ClassDesktopDesktop
Clockspeed3.0 GHz3.5 GHz
Turbo SpeedUp to 3.5 GHzUp to 3.9 GHz
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
CacheL1: 256KB, L2: 1.0MB, L3: 6MBL1: 256KB, L2: 1.0MB, L3: 6MB
TDP65W91W
Yearly Running Cost$11.86$16.61
OtherIntel HD Graphics 630
First Seen on ChartQ1 2017Q3 2015
# of Samples49696596
CPU Value57.071.2
Single Thread Rating(% diff. to max in group)2081(-10.4%)2322(0.0%)
CPU Mark(% diff. to max in group)5474(-13.3%)6316(0.0%)

CPU Mark Rating
As of 15th of January 2025 - Higher results represent better performance
Intel Core i5-7400 @ 3.00GHz
5,474
Intel Core i5-6600K @ 3.50GHz
6,316
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 15th of January 2025 - Higher results represent better value
Intel Core i5-7400 @ 3.00GHz
57.0
Intel Core i5-6600K @ 3.50GHz
71.2
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 15th of January 2025 - Higher results represent better performance
Intel Core i5-7400 @ 3.00GHz
2,081
Intel Core i5-6600K @ 3.50GHz
2,322
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 i5-7400 @ 3.00GHz Intel Core i5-6600K @ 3.50GHz
Max TDP65W91W
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.