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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i9-9900KS vs i7-7820X

The Intel Core i9-9900KS @ 4.00GHz is newer than Intel Core i7-7820X @ 3.60GHz also around 12% faster in multi-threaded (CPU Mark) testing, it is around 17% faster in single-thread testing. Both CPUs operates at simliar power levels (TDP). All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 1583 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 i9-9900KS @ 4.00GHz×Intel Core i7-7820X @ 3.60GHz+ ADD
Price $399.99 - BUY $89.99 - BUY
Socket TypeFCLGA1151-2FCLGA2066
CPU ClassDesktopDesktop
Clockspeed4.0 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
TDP127W140W
Yearly Running Cost$23.18$25.55
OtherIntel UHD Graphics 630
First Seen on ChartQ4 2019Q2 2017
# of Samples5131070
CPU Value48.7190.4
Single Thread Rating(% diff. to max in group)3037(0.0%)2522(-16.9%)
CPU Mark(% diff. to max in group)19492(0.0%)17137(-12.1%)

CPU Mark Rating
As of 21st of August 2024 - Higher results represent better performance
Intel Core i9-9900KS @ 4.00GHz
19,492
Intel Core i7-7820X @ 3.60GHz
17,137
CPU Value (CPU Mark / $Price)
As of 21st of August 2024 - Higher results represent better value
Intel Core i9-9900KS @ 4.00GHz
48.7
Intel Core i7-7820X @ 3.60GHz
190.4
CPU Single Thread Rating
As of 21st of August 2024 - Higher results represent better performance
Intel Core i9-9900KS @ 4.00GHz
3,037
Intel Core i7-7820X @ 3.60GHz
2,522
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 i9-9900KS @ 4.00GHz Intel Core i7-7820X @ 3.60GHz
Max TDP127W140W
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.