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Intel i3-6300 vs i5-6600K

The Intel Core i3-6300 @ 3.80GHz is newer than Intel Core i5-6600K @ 3.50GHz, while Intel Core i5-6600K @ 3.50GHz is around 31% faster in multi-threaded (CPU Mark) testing but the CPUs have comparable single-thread rating. However, Intel Core i3-6300 @ 3.80GHz uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 6906 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 i3-6300 @ 3.80GHz×Intel Core i5-6600K @ 3.50GHz+ ADD
Price $108.7 - BUY $107.36 - BUY
Socket TypeLGA 1151FCLGA1151
CPU ClassDesktopDesktop
Clockspeed3.8 GHz3.5 GHz
Turbo SpeedNot SupportedUp to 3.9 GHz
# of Physical Cores2 (Threads: 4)4 (Threads: 4)
CacheL1: 128KB, L2: 0.5MB, L3: 4MBL1: 256KB, L2: 1.0MB, L3: 6MB
TDP51W91W
Yearly Running Cost$9.31$16.61
Other
First Seen on ChartQ4 2015Q3 2015
# of Samples2496657
CPU Value39.958.7
Single Thread Rating(% diff. to max in group)2276(-1.8%)2318(0.0%)
CPU Mark(% diff. to max in group)4336(-31.2%)6306(0.0%)

CPU Mark Rating
As of 26th of February 2025 - Higher results represent better performance
Intel Core i3-6300 @ 3.80GHz
4,336
Intel Core i5-6600K @ 3.50GHz
6,306
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 26th of February 2025 - Higher results represent better value
Intel Core i3-6300 @ 3.80GHz
39.9
Intel Core i5-6600K @ 3.50GHz
58.7
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 26th of February 2025 - Higher results represent better performance
Intel Core i3-6300 @ 3.80GHz
2,276
Intel Core i5-6600K @ 3.50GHz
2,318
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 i3-6300 @ 3.80GHz Intel Core i5-6600K @ 3.50GHz
Max TDP51W91W
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.