Ryzen Threadripper PRO 9985WX vs EPYC 9755
Aggregate performance score
EPYC 9755 outperforms Ryzen Threadripper PRO 9985WX by a small 6% 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 | 2 | 5 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.13 | 6.39 |
| Market segment | Server | Server |
| Power efficiency | 8.00 | 10.73 |
| Designer | AMD | AMD |
| Manufacturer | TSMC | TSMC |
| Architecture codename | Turin (2024) | Shimada Peak (2025) |
| Release date | 10 October 2024 (less than a year ago) | 23 July 2025 (recently) |
| Launch price (MSRP) | $12,984 | $7,999 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Ryzen Threadripper PRO 9985WX has 465% better value for money than EPYC 9755.
Performance to price scatter graph
Detailed specifications
EPYC 9755 and Ryzen Threadripper PRO 9985WX 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 | 128 | 64 (Tetrahexaconta-Core) |
| Threads | 256 | 128 |
| Base clock speed | 2.7 GHz | 3.2 GHz |
| Boost clock speed | 4.1 GHz | 5.4 GHz |
| L1 cache | 80 KB (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 512 MB (shared) | 256 MB (shared) |
| Chip lithography | 4 nm | 4 nm |
| Die size | 16x 70.6 mm2 | 8x 70.6 mm2 |
| Number of transistors | 133,040 million | 66,520 million |
| 64 bit support | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on EPYC 9755 and Ryzen Threadripper PRO 9985WX 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) | 500 Watt | 350 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 9755 and Ryzen Threadripper PRO 9985WX. 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 9755 and Ryzen Threadripper PRO 9985WX are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 9755 and Ryzen Threadripper PRO 9985WX. 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 9755 and Ryzen Threadripper PRO 9985WX.
| PCIe version | 5.0 | 5.0 |
| PCI Express lanes | 128 | 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 | 94.91 | 89.19 |
| Recency | 10 October 2024 | 23 July 2025 |
| Physical cores | 128 | 64 |
| Threads | 256 | 128 |
| Power consumption (TDP) | 500 Watt | 350 Watt |
EPYC 9755 has a 6.4% higher aggregate performance score, and 100% more physical cores and 100% more threads.
Ryzen Threadripper PRO 9985WX, on the other hand, has an age advantage of 9 months, and 42.9% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between AMD EPYC 9755 and AMD Ryzen Threadripper PRO 9985WX.
Other comparisons
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