Ryzen 9 9900X3D vs Ryzen 9 5950X
Aggregate performance score
Ryzen 9 9900X3D outperforms Ryzen 9 5950X by a significant 24% based on our aggregate benchmark results.
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 175 | 116 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 27.10 | 58.56 |
| Market segment | Desktop processor | Desktop processor |
| Series | AMD Ryzen 9 | no data |
| Power efficiency | 25.81 | 27.99 |
| Designer | AMD | AMD |
| Architecture codename | Vermeer (Zen 3) (2020−2022) | Granite Ridge (2024−2025) |
| Release date | 5 November 2020 (4 years ago) | 6 January 2025 (less than a year ago) |
| Launch price (MSRP) | $799 | $599 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Ryzen 9 9900X3D has 116% better value for money than Ryzen 9 5950X.
Detailed specifications
Ryzen 9 5950X and Ryzen 9 9900X3D 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) | 12 (Dodeca-Core) |
| Threads | 32 | 24 |
| Base clock speed | 3.4 GHz | 4.4 GHz |
| Boost clock speed | 4.9 GHz | 5.5 GHz |
| Multiplier | 34 | no data |
| L1 cache | 64K (per core) | 80 KB (per core) |
| L2 cache | 512K (per core) | 1 MB (per core) |
| L3 cache | 64 MB | 128 MB (shared) |
| Chip lithography | 7 nm, 12 nm | 4 nm |
| Die size | CPU cores: 2x 80.7 sq. mm., I/O: 125 mm2 | 2x 70.6 mm2 |
| Maximum case temperature (TCase) | 95 °C | no data |
| Number of transistors | no data | 16,630 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | + |
Compatibility
Information on Ryzen 9 5950X and Ryzen 9 9900X3D 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 | 1 | 1 |
| Socket | AM4 | AM5 |
| Power consumption (TDP) | 105 Watt | 120 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 5950X and Ryzen 9 9900X3D. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA | no data |
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 5950X and Ryzen 9 9900X3D are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 5950X and Ryzen 9 9900X3D. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR5 |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 51.196 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | - | AMD Radeon Graphics |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 5950X and Ryzen 9 9900X3D.
| PCIe version | 4.0 | 5.0 |
| PCI Express lanes | no data | 24 |
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.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 28.37 | 35.15 |
| Recency | 5 November 2020 | 6 January 2025 |
| Physical cores | 16 | 12 |
| Threads | 32 | 24 |
| Chip lithography | 7 nm | 4 nm |
| Power consumption (TDP) | 105 Watt | 120 Watt |
Ryzen 9 5950X has 33.3% more physical cores and 33.3% more threads, and 14.3% lower power consumption.
Ryzen 9 9900X3D, on the other hand, has a 23.9% higher aggregate performance score, an age advantage of 4 years, and a 75% more advanced lithography process.
The AMD Ryzen 9 9900X3D is our recommended choice as it beats the AMD Ryzen 9 5950X in performance tests.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
