Ryzen 9 5950X vs Ryzen 9 9955HX
Aggregate performance score
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 190 | 192 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 26.81 |
| Market segment | Laptop | Desktop processor |
| Series | AMD Dragon Range (Zen 4, Ryzen 7045) | AMD Ryzen 9 |
| Power efficiency | 49.41 | 25.85 |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Fire Range-HX (Zen 5) (2025) | Vermeer (Zen 3) (2020−2022) |
| Release date | 6 January 2025 (less than a year ago) | 5 November 2020 (4 years ago) |
| Launch price (MSRP) | no data | $799 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 9 9955HX and Ryzen 9 5950X 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 | 16 (Hexadeca-Core) | 16 (Hexadeca-Core) |
| Threads | 32 | 32 |
| Base clock speed | no data | 3.4 GHz |
| Boost clock speed | 5.4 GHz | 4.9 GHz |
| Multiplier | no data | 34 |
| L1 cache | 1.3 MB | 64K (per core) |
| L2 cache | 16 MB | 512K (per core) |
| L3 cache | 64 MB | 64 MB |
| Chip lithography | no data | 7 nm, 12 nm |
| Die size | no data | CPU cores: 2x 80.7 sq. mm., I/O: 125 mm2 |
| Maximum case temperature (TCase) | no data | 95 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Ryzen 9 9955HX and Ryzen 9 5950X 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 | no data | AM4 |
| Power consumption (TDP) | 55 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 9955HX and Ryzen 9 5950X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA |
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 9955HX and Ryzen 9 5950X are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 9955HX and Ryzen 9 5950X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 51.196 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 610M ( - 2200 MHz) | - |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 9955HX and Ryzen 9 5950X.
| PCIe version | no data | 4.0 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
Geekbench 5.5 Multi-Core
7-Zip Single
7-Zip
CrossMark Overall
Pros & cons summary
| Performance score | 28.39 | 28.35 |
| Recency | 6 January 2025 | 5 November 2020 |
| Power consumption (TDP) | 55 Watt | 105 Watt |
Ryzen 9 9955HX has a 0.1% higher aggregate performance score, an age advantage of 4 years, and 90.9% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between AMD Ryzen 9 9955HX and AMD Ryzen 9 5950X.
Be aware that Ryzen 9 9955HX is a notebook processor while Ryzen 9 5950X is a desktop one.
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