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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Ryzen 9 3900X vs Ryzen 7 5800X vs Intel i7-7700K

All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 38411 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.

×AMD Ryzen 9 3900X×AMD Ryzen 7 5800X×Intel Core i7-7700K @ 4.20GHz+ ADD
Price $209.99 - BUY $185 - BUY $129.99 - BUY
Socket TypeAM4AM4 LGA 1151
CPU ClassDesktopDesktopDesktop
Clockspeed3.8 GHz3.8 GHz4.2 GHz
Turbo SpeedUp to 4.6 GHzUp to 4.7 GHzUp to 4.5 GHz
# of Physical Cores12 (Threads: 24)8 (Threads: 16)4 (Threads: 8)
CacheL1: 768KB, L2: 6.0MB, L3: 64MBL1: 512KB, L2: 4.0MB, L3: 32MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP105W105W95W
Yearly Running Cost$19.16$19.16$17.34
Other
First Seen on ChartQ3 2019Q4 2020Q4 2016
# of Samples133261308911996
CPU Value155.4150.774.3
Single Thread Rating(% diff. to max in group)2706(-21.4%)3445(0.0%)2720(-21.0%)
CPU Mark(% diff. to max in group)32642(0.0%)27873(-14.6%)9653(-70.4%)

CPU Mark Rating
As of 27th of July 2024 - Higher results represent better performance
AMD Ryzen 9 3900X
32,642
AMD Ryzen 7 5800X
27,873
Intel Core i7-7700K @ 4.20GHz
9,653
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 27th of July 2024 - Higher results represent better value
AMD Ryzen 9 3900X
155.4
AMD Ryzen 7 5800X
150.7
Intel Core i7-7700K @ 4.20GHz
74.3
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 27th of July 2024 - Higher results represent better performance
AMD Ryzen 9 3900X
2,706
AMD Ryzen 7 5800X
3,445
Intel Core i7-7700K @ 4.20GHz
2,720
PassMark Software © 2008-2024

Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per dayAverage CPU Utilization (0-100%)1Power cost, $ per kWh2
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.
AMD Ryzen 9 3900XAMD Ryzen 7 5800XIntel Core i7-7700K @ 4.20GHz
Max TDP105W105W95W
Power consumption per day (kWh)NANANA
Running cost per dayNANANA
Power consumption per year (kWh)NANANA
Running cost per yearNANANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.