Ryzen 9 9950X3D vs Ryzen 9 5900H
Primary details
Comparing Ryzen 9 5900H and Ryzen 9 9950X3D processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 591 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | AMD Cezanne (Zen 3, Ryzen 5000) | no data |
| Power efficiency | 27.20 | no data |
| Architecture codename | Cezanne U (Zen 3) (2021−2022) | Granite Ridge (2024−2025) |
| Release date | 7 January 2021 (3 years ago) | 2025 (recently) |
Detailed specifications
Ryzen 9 5900H and Ryzen 9 9950X3D basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 8 (Octa-Core) | 16 (Hexadeca-Core) |
| Threads | 16 | 32 |
| Base clock speed | 3.3 GHz | 4 GHz |
| Boost clock speed | 4.6 GHz | 5.6 GHz |
| L1 cache | 512 KB | 80 KB (per core) |
| L2 cache | 4 MB | 1 MB (per core) |
| L3 cache | 16 MB | 128 MB (shared) |
| Chip lithography | 7 nm | 4 nm |
| Die size | no data | 2x 70.6 mm2 |
| Number of transistors | no data | 16,630 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Ryzen 9 5900H and Ryzen 9 9950X3D compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | no data | 1 |
| Socket | FP6 | AM5 |
| Power consumption (TDP) | 45 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 5900H and Ryzen 9 9950X3D. You'll probably need this information if you require some particular technology.
| Instruction set extensions | XFR, FMA3, SSE 4.2, AVX2, SMT | no data |
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 5900H and Ryzen 9 9950X3D are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 5900H and Ryzen 9 9950X3D. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | AMD Radeon RX Vega 8 (Ryzen 4000) | AMD Radeon Graphics |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 5900H and Ryzen 9 9950X3D.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 24 |
Pros & cons summary
| Integrated graphics card | 8.99 | 1.98 |
| Physical cores | 8 | 16 |
| Threads | 16 | 32 |
| Chip lithography | 7 nm | 4 nm |
| Power consumption (TDP) | 45 Watt | 170 Watt |
Ryzen 9 5900H has 354% faster integrated GPU, and 277.8% lower power consumption.
Ryzen 9 9950X3D, on the other hand, has 100% more physical cores and 100% more threads, and a 75% more advanced lithography process.
We couldn't decide between Ryzen 9 5900H and Ryzen 9 9950X3D. We've got no test results to judge.
Be aware that Ryzen 9 5900H is a notebook processor while Ryzen 9 9950X3D is a desktop one.
Should you still have questions on choice between Ryzen 9 5900H and Ryzen 9 9950X3D, ask them in Comments section, and we shall answer.
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