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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i9-9900KS vs AMD Ryzen 7 3800X

The Intel Core i9-9900KS @ 4.00GHz is newer than AMD Ryzen 7 3800X, while AMD Ryzen 7 3800X is around 16% faster in multi-threaded (CPU Mark) testing, but Intel Core i9-9900KS @ 4.00GHz is around 11% faster in single-thread testing. However, Intel Core i9-9900KS @ 4.00GHz uses around 19% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 6291 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×AMD Ryzen 7 3800X+ ADD
Price $499 - BUY $199.99 - BUY
Socket TypeFCLGA1151-2AM4
CPU ClassDesktopDesktop
Clockspeed4.0 GHz3.9 GHz
Turbo SpeedUp to 5.0 GHzUp to 4.5 GHz
# of Physical Cores8 (Threads: 16)8 (Threads: 16)
CacheL1: 512KB, L2: 2.0MB, L3: 16MBL1: 512KB, L2: 4.0MB, L3: 32MB
TDP127W105W
Yearly Running Cost$23.18$19.16
OtherIntel UHD Graphics 630
First Seen on ChartQ4 2019Q3 2019
# of Samples5195772
CPU Value39.0115.7
Single Thread Rating(% diff. to max in group)3036(0.0%)2717(-10.5%)
CPU Mark(% diff. to max in group)19470(-15.9%)23140(0.0%)

CPU Mark Rating
As of 24th of November 2024 - Higher results represent better performance
Intel Core i9-9900KS @ 4.00GHz
19,470
AMD Ryzen 7 3800X
23,140
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 24th of November 2024 - Higher results represent better value
Intel Core i9-9900KS @ 4.00GHz
39.0
AMD Ryzen 7 3800X
115.7
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 24th of November 2024 - Higher results represent better performance
Intel Core i9-9900KS @ 4.00GHz
3,036
AMD Ryzen 7 3800X
2,717
PassMark Software © 2008-2024
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 AMD Ryzen 7 3800X
Max TDP127W105W
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.