Ryzen Threadripper PRO 9955WX vs Ryzen 9 9950X
Ryzen Threadripper PRO 9955WX
Ryzen 9 9950X
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Ryzen Threadripper PRO 9955WX
Performance Per Dollar Ryzen 9 9950X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen Threadripper PRO 9955WX | Ryzen 9 9950X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($450) | ✅ More affordable ($129) |
| Longevity | ✨ Modern (Shimada Peak (2025) / 4 nm) | ✨ Modern (Granite Ridge (2024−2025) / 4 nm) |
💎 Value Proposition
| Insight | Ryzen Threadripper PRO 9955WX | Ryzen 9 9950X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+240%) |
| Upfront Cost | ⚠️ Higher cost ($450) | ✅ More affordable ($129) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Ryzen Threadripper PRO 9955WX and Ryzen 9 9950X
Ryzen Threadripper PRO 9955WX
The Ryzen Threadripper PRO 9955WX is manufactured by AMD. It was released in 23 July 2025 (less than a year ago). It is based on the Shimada Peak (2025) architecture. It features 16 cores and 32 threads. Base frequency is 4.5 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: sTR5. Thermal design power (TDP): 350 Watt. Memory support: DDR5. Passmark benchmark score: 67,561 points. Launch price was $1,649.
Ryzen 9 9950X
The Ryzen 9 9950X is manufactured by AMD. It was released in 15 August 2024 (1 year ago). It is based on the Granite Ridge (2024−2025) architecture. It features 16 cores and 32 threads. Base frequency is 4.3 GHz, with boost up to 5.7 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 170 Watt. Memory support: DDR5. Passmark benchmark score: 65,833 points. Launch price was $649.
Processing Power
Both the Ryzen Threadripper PRO 9955WX and Ryzen 9 9950X share an identical 16-core/32-thread configuration. Boost clocks reach 5.4 GHz on the Ryzen Threadripper PRO 9955WX versus 5.7 GHz on the Ryzen 9 9950X — a 5.4% clock advantage for the Ryzen 9 9950X (base: 4.5 GHz vs 4.3 GHz). The Ryzen Threadripper PRO 9955WX uses the Shimada Peak (2025) architecture (4 nm), while the Ryzen 9 9950X uses Granite Ridge (2024−2025) (4 nm). In PassMark, the Ryzen Threadripper PRO 9955WX scores 67,561 against the Ryzen 9 9950X's 65,833 — a 2.6% lead for the Ryzen Threadripper PRO 9955WX. Cinebench R23 multi-core: 40,000 vs 42,871 (6.9% advantage for the Ryzen 9 9950X). Geekbench 6 single-core — the metric most relevant to gaming — records 3,016 vs 3,384, a 11.5% lead for the Ryzen 9 9950X that directly translates to higher frame rates. Multi-core Geekbench: 23,596 vs 21,441 (9.6% advantage for the Ryzen Threadripper PRO 9955WX). Both processors carry 64 MB (total) of L3 cache.
| Feature | Ryzen Threadripper PRO 9955WX | Ryzen 9 9950X |
|---|---|---|
| Cores / Threads | 16 / 32 | 16 / 32 |
| Boost Clock | 5.4 GHz | 5.7 GHz+6% |
| Base Clock | 4.5 GHz+5% | 4.3 GHz |
| L3 Cache | 64 MB (total) | 64 MB (total) |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 4 nm | 4 nm |
| Architecture | Shimada Peak (2025) | Granite Ridge (2024−2025) |
| PassMark | 67,561+3% | 65,833 |
| Cinebench R23 Multi | 40,000 | 42,871+7% |
| Geekbench 6 Single | 3,016 | 3,384+12% |
| Geekbench 6 Multi | 23,596+10% | 21,441 |
Memory & Platform
The Ryzen Threadripper PRO 9955WX uses the sTR5 socket (PCIe 4.0), while the Ryzen 9 9950X uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-6400 memory speed. The Ryzen Threadripper PRO 9955WX supports up to 2048 GB of RAM compared to 192 GB — 165.7% more capacity for professional workloads. Memory channels: 8 (Ryzen Threadripper PRO 9955WX) vs 2 (Ryzen 9 9950X). PCIe lanes: 128 (Ryzen Threadripper PRO 9955WX) vs 24 (Ryzen 9 9950X) — the Ryzen Threadripper PRO 9955WX offers 104 more lanes for additional GPUs or NVMe drives. Chipset compatibility: WRX90 (Ryzen Threadripper PRO 9955WX) and X670E,X670,B650E,B650 (Ryzen 9 9950X).
| Feature | Ryzen Threadripper PRO 9955WX | Ryzen 9 9950X |
|---|---|---|
| Socket | sTR5 | AM5 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | DDR5-6400 | DDR5-5600 |
| Max RAM Capacity | 2048 GB+967% | 192 GB |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128+433% | 24 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Both support true virtualization. The Ryzen 9 9950X includes integrated graphics (Radeon Graphics (2 Cores)), while the Ryzen Threadripper PRO 9955WX requires a dedicated GPU. Direct competitor: Ryzen Threadripper PRO 9955WX rivals Xeon w7-3555; Ryzen 9 9950X rivals Core Ultra 9 285K.
| Feature | Ryzen Threadripper PRO 9955WX | Ryzen 9 9950X |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | Radeon Graphics (2 Cores) |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | true | true |
Value Analysis
The Ryzen Threadripper PRO 9955WX launched at $429 MSRP, while the Ryzen 9 9950X debuted at $649. At current prices ($450 vs $129), the Ryzen 9 9950X is $321 cheaper. In terms of value (PassMark points per dollar), the Ryzen Threadripper PRO 9955WX delivers 150.1 pts/$ vs 510.3 pts/$ for the Ryzen 9 9950X — making the Ryzen 9 9950X the 109.1% better value option.
| Feature | Ryzen Threadripper PRO 9955WX | Ryzen 9 9950X |
|---|---|---|
| MSRP | $429-34% | $649 |
| Avg Price (30d) | $450 | $129-71% |
| Performance per Dollar | 150.1 | 510.3+240% |
| Release Date | 2025 | 2024 |
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