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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i7-7820X vs i7-8086K

The Intel Core i7-8086K @ 4.00GHz is newer than Intel Core i7-7820X @ 3.60GHz, while Intel Core i7-7820X @ 3.60GHz is around 18% faster in multi-threaded (CPU Mark) testing, but Intel Core i7-8086K @ 4.00GHz is around 11% faster in single-thread testing. However, Intel Core i7-7820X @ 3.60GHz uses around 38% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 2690 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 i7-7820X @ 3.60GHz×Intel Core i7-8086K @ 4.00GHz+ ADD
Price $489.05 - BUY Search Online
Socket TypeFCLGA2066FCLGA1151-2
CPU ClassDesktopDesktop
Clockspeed3.6 GHz4.0 GHz
Turbo SpeedUp to 4.3 GHzUp to 5.0 GHz
# of Physical Cores8 (Threads: 16)6 (Threads: 12)
CacheL1: 512KB, L2: 8.0MB, L3: 11MBL1: 384KB, L2: 1.5MB, L3: 12MB
TDP140W95W
Yearly Running Cost$25.55$17.34
OtherIntel UHD Graphics 630
First Seen on ChartQ2 2017Q2 2018
# of Samples11701520
CPU Value35.10.0
Single Thread Rating(% diff. to max in group)2524(-10.6%)2823(0.0%)
CPU Mark(% diff. to max in group)17174(0.0%)14106(-17.9%)

CPU Mark Rating
As of 17th of April 2025 - Higher results represent better performance
Intel Core i7-7820X @ 3.60GHz
17,174
Intel Core i7-8086K @ 4.00GHz
14,106
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 17th of April 2025 - Higher results represent better value
Intel Core i7-7820X @ 3.60GHz
35.1
Intel Core i7-8086K @ 4.00GHz
NA
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 17th of April 2025 - Higher results represent better performance
Intel Core i7-7820X @ 3.60GHz
2,524
Intel Core i7-8086K @ 4.00GHz
2,823
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 i7-7820X @ 3.60GHz Intel Core i7-8086K @ 4.00GHz
Max TDP140W95W
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.