Ryzen Threadripper PRO 9955WX vs Xeon Silver 4109T
Aggregate performance score
Ryzen Threadripper PRO 9955WX outperforms Xeon Silver 4109T by a whopping 577% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1212 | 70 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.08 | no data |
| Market segment | Server | Desktop processor |
| Series | Intel Xeon Silver | no data |
| Power efficiency | 3.55 | no data |
| Designer | Intel | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Skylake (server) (2017−2018) | Shimada Peak (2025) |
| Release date | 11 July 2017 (8 years ago) | July 2025 (recently) |
| Launch price (MSRP) | $501 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Xeon Silver 4109T 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 | 8 (Octa-Core) | 16 (Hexadeca-Core) |
| Threads | 16 | 32 |
| Base clock speed | 2 GHz | 4.5 GHz |
| Boost clock speed | 3 GHz | 5.4 GHz |
| Multiplier | 20 | no data |
| L1 cache | 512 KB | 64 KB (per core) |
| L2 cache | 8 MB | 1 MB (per core) |
| L3 cache | 11 MB | 64 MB (shared) |
| Chip lithography | 14 nm | 4 nm |
| Die size | no data | 2x 70.6 mm2 |
| Maximum core temperature | 90 °C | no data |
| Number of transistors | no data | 16,630 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon Silver 4109T 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 (Multiprocessor) | 1 |
| Socket | FCLGA3647 | sTR5 |
| Power consumption (TDP) | 70 Watt | 350 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Silver 4109T and Ryzen Threadripper PRO 9955WX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Turbo Boost Max 3.0 | - | no data |
| Precision Boost 2 | no data | + |
Security technologies
Xeon Silver 4109T and Ryzen Threadripper PRO 9955WX technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Silver 4109T and Ryzen Threadripper PRO 9955WX are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4109T and Ryzen Threadripper PRO 9955WX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2400 | DDR5 |
| Maximum memory size | 768 GB | no data |
| Max memory channels | 6 | no data |
| Maximum memory bandwidth | 115.212 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon Silver 4109T and Ryzen Threadripper PRO 9955WX.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 48 | 136 |
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 | 6.22 | 42.08 |
| Physical cores | 8 | 16 |
| Threads | 16 | 32 |
| Chip lithography | 14 nm | 4 nm |
| Power consumption (TDP) | 70 Watt | 350 Watt |
Xeon Silver 4109T has 400% lower power consumption.
Ryzen Threadripper PRO 9955WX, on the other hand, has a 576.5% higher aggregate performance score, 100% more physical cores and 100% more threads, and a 250% more advanced lithography process.
The AMD Ryzen Threadripper PRO 9955WX is our recommended choice as it beats the Intel Xeon Silver 4109T in performance tests.
Be aware that Xeon Silver 4109T is a server/workstation processor while Ryzen Threadripper PRO 9955WX is a desktop one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
