amd
Brand12/24
Cores/Threads3.8GHz
Base Clock105W
TDPAMD Ryzen 9 3900X
intel
Brand12/20
Cores/Threads2.1GHz
Base Clock65W
TDPIntel Core i7-12700
AMD Ryzen 9 3900X
AMD Ryzen 9 3900X
$499 • Jul 2019
Intel Core i7-12700
$349 • Nov 2025
Intel Core i7-12700
Specs Comparison
| Specification | AMD Ryzen 9 3900X | Intel Core i7-12700 |
|---|---|---|
| Cores | 12 | 12 |
| Threads | 24 | 20 |
| Hybrid Cores | N/A | P-Cores: 8, E-Cores: 4 |
| Base Clock | 3.8 GHz | 2.1 GHz |
| Boost Clock | 4.6 GHz | 4.9 GHz |
| Multiplier Unlocked | ✓ Yes | ✓ Yes |
| Multiplier | 38 X | 21 X |
| TDP | 105 W | 65 W |
| Memory Support | DDR4 | DDR4, DDR5 |
| Cache L1 | 64 KB | 80 KB |
| Cache L2 | 0.50 MB | 1.25 MB |
| Cache L3 | 64.00 MB | 25.00 MB |
| Integrated GPU | N/A | UHD Graphics 770 |
| Architecture | Ryzen 9 (Zen 2 (Matisse)) | Core i7 (Alder Lake-S) |
| Process Size | 7nm | 10nm |
| Socket | amd socket am4 | intel socket 1700 |
| Foundry | TSMC | Intel |
| Die Size | 2 mm² | 215 mm² |
| PCI Express | Gen 4, 24 Lanes(CPU only) | Gen 5, 16 Lanes(CPU only) |
| Transistors | 7600 million | N/A |
| Max Temperature | N/A | 100°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
Intel Core i7-12700
Multi Core Performance
AMD Ryzen 9 3900X
Intel Core i7-12700
Geekbench 5
Popular cross-platform CPU benchmark measuring single and multi-core performance in real-world tasks
Single Core Performance
AMD Ryzen 9 3900X
Intel Core i7-12700
Multi Core Performance
AMD Ryzen 9 3900X
Intel Core i7-12700
PassMark
PassMark CPU Mark is a popular synthetic benchmark that scores overall CPU performance (higher is better).
Overall CPU Score
AMD Ryzen 9 3900X
Intel Core i7-12700
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
Intel Core i7-12700
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.
Intel Core i7-12700 Wins!
Based on 4 synthetic benchmarks
AMD Ryzen 9 3900X
AMD • 12/24 • 3.8GHz
Intel Core i7-12700
INTEL • 12/20 • 2.1GHz
Check out more comparisons
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