Ryzen Threadripper PRO 9955WX vs EPYC 9684X
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 14 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.02 | no data |
| Market segment | Server | Desktop processor |
| Power efficiency | 7.31 | no data |
| Designer | AMD | AMD |
| Manufacturer | TSMC | TSMC |
| Architecture codename | Genoa-X (2023) | Shimada Peak (2025) |
| Release date | 13 June 2023 (2 years ago) | July 2025 (recently) |
| Launch price (MSRP) | $14,756 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
EPYC 9684X and Ryzen Threadripper PRO 9955WX 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 | 96 | 16 (Hexadeca-Core) |
| Threads | 192 | 32 |
| Base clock speed | 2.55 GHz | 4.5 GHz |
| Boost clock speed | 3.7 GHz | 5.4 GHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 1152 MB (shared) | 64 MB (shared) |
| Chip lithography | 5 nm | 4 nm |
| Die size | 12x 72 mm2 | 2x 70.6 mm2 |
| Number of transistors | 135,240 million | 16,630 million |
| 64 bit support | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on EPYC 9684X and Ryzen Threadripper PRO 9955WX 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 | 2 | 1 |
| Socket | SP5 | sTR5 |
| Power consumption (TDP) | 400 Watt | 350 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 9684X and Ryzen Threadripper PRO 9955WX. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 9684X and Ryzen Threadripper PRO 9955WX are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 9684X and Ryzen Threadripper PRO 9955WX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | N/A |
Peripherals
Specifications and connection of peripherals supported by EPYC 9684X and Ryzen Threadripper PRO 9955WX.
| PCIe version | 5.0 | 5.0 |
| PCI Express lanes | 128 | 136 |
Pros & cons summary
| Physical cores | 96 | 16 |
| Threads | 192 | 32 |
| Chip lithography | 5 nm | 4 nm |
| Power consumption (TDP) | 400 Watt | 350 Watt |
EPYC 9684X has 500% more physical cores and 500% more threads.
Ryzen Threadripper PRO 9955WX, on the other hand, has a 25% more advanced lithography process, and 14.3% lower power consumption.
We couldn't decide between AMD EPYC 9684X and AMD Ryzen Threadripper PRO 9955WX. We've got no test results to judge.
Be aware that EPYC 9684X is a server/workstation processor while Ryzen Threadripper PRO 9955WX is a desktop one.
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