AMD Ryzen 5 8400F VS AMD Ryzen 9 3900X
amd
Brand6/12
Cores/Threads4.2GHz
Base Clock65W
TDPAMD Ryzen 5 8400F
amd
Brand12/24
Cores/Threads3.8GHz
Base Clock105W
TDPAMD Ryzen 9 3900X
AMD Ryzen 5 8400F
AMD Ryzen 5 8400F
N/A • Apr 2024
AMD Ryzen 9 3900X
$499 • Jul 2019
AMD Ryzen 9 3900X
Specs Comparison
| Specification | AMD Ryzen 5 8400F | AMD Ryzen 9 3900X |
|---|---|---|
| Cores | 6 | 12 |
| Threads | 12 | 24 |
| Base Clock | 4.2 GHz | 3.8 GHz |
| Boost Clock | 4.7 GHz | 4.6 GHz |
| Multiplier Unlocked | ✓ Yes | ✓ Yes |
| Multiplier | 42 X | 38 X |
| TDP | 65 W | 105 W |
| Memory Support | DDR5 | DDR4 |
| Cache L1 | 64 KB | 64 KB |
| Cache L2 | 1.00 MB | 0.50 MB |
| Cache L3 | 16.00 MB | 64.00 MB |
| Integrated GPU | N/A | N/A |
| Architecture | Ryzen 5 (Zen 4 (Phoenix)) | Ryzen 9 (Zen 2 (Matisse)) |
| Process Size | 4nm | 7nm |
| Socket | amd socket am5 | amd socket am4 |
| Foundry | TSMC | TSMC |
| Die Size | 178 mm² | 2 mm² |
| PCI Express | Gen 4, 20 Lanes(CPU only) | Gen 4, 24 Lanes(CPU only) |
| Transistors | 25000 million | 7600 million |
| Max Temperature | 95°C | N/A |
Comparison in Tools
Cinebench R23
Industry-leading 3D rendering benchmark that measures real-world CPU processing power and performance
Single Core Performance
AMD Ryzen 5 8400F
AMD Ryzen 9 3900X
Multi Core Performance
AMD Ryzen 5 8400F
AMD Ryzen 9 3900X
Geekbench 5
Popular cross-platform CPU benchmark measuring single and multi-core performance in real-world tasks
Single Core Performance
AMD Ryzen 5 8400F
AMD Ryzen 9 3900X
Multi Core Performance
AMD Ryzen 5 8400F
AMD Ryzen 9 3900X
PassMark
PassMark CPU Mark is a popular synthetic benchmark that scores overall CPU performance (higher is better).
Overall CPU Score
AMD Ryzen 5 8400F
AMD Ryzen 9 3900X
Blender Benchmark
Measures CPU rendering speed in Blender, reported in frames per second (FPS). Higher FPS means faster completion of 3D rendering tasks.
Blender FPS
AMD Ryzen 5 8400F
AMD Ryzen 9 3900X
Comparison in Games
No benchmark data available for this combination of CPUs yet.
We're working on collecting performance data for this combination of CPUs. Please check back later.
It's a Tie!
Based on 4 synthetic benchmarks
AMD Ryzen 5 8400F
AMD • 6/12 • 4.2GHz
AMD Ryzen 9 3900X
AMD • 12/24 • 3.8GHz
Where to Buy
Check out more comparisons
Comments & Discussion
Share your thoughts and experiences