amd ryzen threadripper 3990x vs amd ryzen 9 6900hx
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We compared two CPUs AMD Ryzen Threadripper 3990X (Desktop) 64-cores against AMD Ryzen 9 6900HX (Laptop) 8-cores. In this comparison page, we check which of these two processor has better performance in benchmark results, Games, architecture, price and other useful information.
Review
Single-Core Performance
Performance in single-threaded apps and benchmarks
Performance
Measure performance when all cores are involved
Key Differences
Advantages of AMD Ryzen Threadripper 3990X
- Newer released 2019 years later
- Has 56 more physical cores
- Has 240 MB larger L3 cache size
Advantages of AMD Ryzen 9 6900HX
- Newer released 3 years later
- Consumes up to 84% less energy than the AMD Ryzen Threadripper 3990X – 45 vs 280 Watt
- 12% higher Turbo Boost frequency (4.9 GHz vs 4.3 GHz)
- More modern manufacturing process – 6 versus 7
Benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
Specifications
General
| AMD Ryzen Threadripper 3990X | AMD Ryzen 9 6900HX | |
| Vendor | AMD | AMD |
| Released | November 25 2019 | January 4 2022 |
| Type | Desktop | Laptop |
| instruction set | x86-64 | x86-64 |
| Codename | Matisse | Rembrandt H |
| Socket | TR4 | FP7 |
| Integrated GPU | - | AMD Radeon 680M |
Performance
| AMD Ryzen Threadripper 3990X | AMD Ryzen 9 6900HX | |
| Cores | 64 | 8 |
| Threads | 128 | 16 |
| Base Frequency | 2.9 GHz | 3.3 GHz |
| Turbo Boost Frequency | 4.3 GHz | 4.9 GHz |
| L1 Cache | 96K (per core) | 64K (per core) |
| L2 Cache | 512K (per core) | 512K (per core) |
| L3 Cache | 256 MB | 16 MB (shared) |
| Unlocked Multiplier | Yes | Yes |
Power
| AMD Ryzen Threadripper 3990X | AMD Ryzen 9 6900HX | |
| Fabrication process | 7 nm, 12 nm | 6 nm |
| Power consumption (TDP) | 280 W | 45 W |
| Max. temperature | °C | 95°C |
Memory support
| AMD Ryzen Threadripper 3990X | AMD Ryzen 9 6900HX | |
| Memory types | DDR4-3200 | DDR5-4800 |
| Memory Size | 256 GB | GB |
| Max. Memory Channels | 4 | |
| Max. Memory Bandwidth | 102.403 GB/s | - |
| ECC Support | Yes | No |
iGPU
| AMD Ryzen Threadripper 3990X | AMD Ryzen 9 6900HX | |
| Integrated Graphics | - | AMD Radeon 680M |
| GPU Base Clock | MHz | 2000 MHz |
| Shading Units | 768 | |
| TMUs | 48 | |
| ROPs | 32 | |
| TGP | W | 15 W |
iGPU FLOPS
Misc
| AMD Ryzen Threadripper 3990X | AMD Ryzen 9 6900HX | |
| Official site | AMD Ryzen Threadripper 3990X official page | AMD Ryzen 9 6900HX official page |
| PCI Express Version | 4 | 4 |
| PCI Express Lanes |