iconcharts
0

CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Ryzen 5 PRO 9645 vs Ryzen 5 8400F

The AMD Ryzen 5 PRO 9645 is newer than AMD Ryzen 5 8400F and is around 29% faster in multi-threaded (CPU Mark) testing. The AMD Ryzen 5 PRO 9645 is around 26% 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 1637 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 5 PRO 9645×AMD Ryzen 5 8400F+ ADD
Price Search Online $143.95 - BUY
Socket TypeAM5AM5
CPU ClassDesktopDesktop
Clockspeed3.9 GHz4.2 GHz
Turbo SpeedUp to 5.4 GHzUp to 4.7 GHz
# of Physical Cores6 (Threads: 12)6 (Threads: 12)
CacheL1: 480KB, L2: 6.0MB, L3: 32MBL1: 384KB, L2: 6.0MB, L3: 16MB
TDP65W65W
Yearly Running Cost$11.86$11.86
Otherwith Radeon Graphics
First Seen on ChartQ4 2025Q2 2024
# of Samples3761261
CPU Rank451683
CPU Value0.0170.2
Single Thread Rating(% diff. to max in group)4645(0.0%)3688(-20.6%)
CPU Mark(% diff. to max in group)31511(0.0%)24503(-22.2%)

CPU Mark Rating
As of 16th of January 2026 - Higher results represent better performance
AMD Ryzen 5 PRO 9645
31,511
AMD Ryzen 5 8400F
24,503
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 16th of January 2026 - Higher results represent better value
AMD Ryzen 5 PRO 9645
NA
AMD Ryzen 5 8400F
170.2
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 16th of January 2026 - Higher results represent better performance
AMD Ryzen 5 PRO 9645
4,645
AMD Ryzen 5 8400F
3,688
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.
AMD Ryzen 5 PRO 9645 AMD Ryzen 5 8400F
Max TDP65W65W
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.