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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i9-9900KF vs i7-7820X

The Intel Core i9-9900KF @ 3.60GHz is newer than Intel Core i7-7820X @ 3.60GHz is around 15% faster in single-thread testing. Also, 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 3734 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 i9-9900KF @ 3.60GHz×Intel Core i7-7820X @ 3.60GHz+ ADD
Price $282.3 - BUY $198.33 - BUY
Socket TypeFCLGA1151-2FCLGA2066
CPU ClassDesktopDesktop
Clockspeed3.6 GHz3.6 GHz
Turbo SpeedUp to 5.0 GHzUp to 4.3 GHz
# of Physical Cores8 (Threads: 16)8 (Threads: 16)
CacheL1: 512KB, L2: 2.0MB, L3: 16MBL1: 512KB, L2: 8.0MB, L3: 11MB
TDP95W140W
Yearly Running Cost$17.34$25.55
Other
First Seen on ChartQ2 2019Q2 2017
# of Samples24111323
CPU Rank10261076
CPU Value63.986.7
Single Thread Rating(% diff. to max in group)2904(0.0%)2521(-13.2%)
CPU Mark(% diff. to max in group)18038(0.0%)17187(-4.7%)

CPU Mark Rating
As of 25th of January 2026 - Higher results represent better performance
Intel Core i9-9900KF @ 3.60GHz
18,038
Intel Core i7-7820X @ 3.60GHz
17,187
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 25th of January 2026 - Higher results represent better value
Intel Core i9-9900KF @ 3.60GHz
63.9
Intel Core i7-7820X @ 3.60GHz
86.7
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 25th of January 2026 - Higher results represent better performance
Intel Core i9-9900KF @ 3.60GHz
2,904
Intel Core i7-7820X @ 3.60GHz
2,521
PassMark Software © 2008-2026
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 i9-9900KF @ 3.60GHz Intel Core i7-7820X @ 3.60GHz
Max TDP95W140W
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.