amd
Brand12/24
Cores/Threads3.8GHz
Base Clock105W
TDPAMD Ryzen 9 3900X
amd
Brand12/24
Cores/Threads3.7GHz
Base Clock65W
TDPAMD Ryzen 9 7900
AMD Ryzen 9 3900X
AMD Ryzen 9 3900X
$499 • Jul 2019
AMD Ryzen 9 7900
$429 • Jan 2023
AMD Ryzen 9 7900
Specs Comparison
| Specification | AMD Ryzen 9 3900X | AMD Ryzen 9 7900 |
|---|---|---|
| Cores | 12 | 12 |
| Threads | 24 | 24 |
| Base Clock | 3.8 GHz | 3.7 GHz |
| Boost Clock | 4.6 GHz | 5.4 GHz |
| Multiplier Unlocked | ✓ Yes | ✓ Yes |
| Multiplier | 38 X | 37 X |
| TDP | 105 W | 65 W |
| Memory Support | DDR4 | DDR5 |
| Cache L1 | 64 KB | 64 KB |
| Cache L2 | 0.50 MB | 1.00 MB |
| Cache L3 | 64.00 MB | 64.00 MB |
| Integrated GPU | N/A | Radeon Graphics |
| Architecture | Ryzen 9 (Zen 2 (Matisse)) | Ryzen 9 (Zen 4 (Raphael)) |
| Process Size | 7nm | 5nm |
| Socket | amd socket am4 | amd socket am5 |
| Foundry | TSMC | TSMC |
| Die Size | 2 mm² | 2 mm² |
| PCI Express | Gen 4, 24 Lanes(CPU only) | Gen 5, 24 Lanes(CPU only) |
| Transistors | 7600 million | 13140 million |
| Max Temperature | N/A | 95°C |
Comparison in Tools
Cinebench R23
Industry-leading 3D rendering benchmark that measures real-world CPU processing power and performance
Single Core Performance
AMD Ryzen 9 3900X
AMD Ryzen 9 7900
Multi Core Performance
AMD Ryzen 9 3900X
AMD Ryzen 9 7900
Geekbench 5
Popular cross-platform CPU benchmark measuring single and multi-core performance in real-world tasks
Single Core Performance
AMD Ryzen 9 3900X
AMD Ryzen 9 7900
Multi Core Performance
AMD Ryzen 9 3900X
AMD Ryzen 9 7900
PassMark
PassMark CPU Mark is a popular synthetic benchmark that scores overall CPU performance (higher is better).
Overall CPU Score
AMD Ryzen 9 3900X
AMD Ryzen 9 7900
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 9 3900X
AMD Ryzen 9 7900
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.
AMD Ryzen 9 7900 Wins!
Based on 4 synthetic benchmarks
AMD Ryzen 9 3900X
AMD • 12/24 • 3.8GHz
AMD Ryzen 9 7900
AMD • 12/24 • 3.7GHz
Check out more comparisons
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