Ryzen Threadripper PRO 3975WX vs Ryzen 9 9955HX3D
Ryzen Threadripper PRO 3975WX
Ryzen 9 9955HX3D
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 3975WX
Performance Per Dollar Ryzen 9 9955HX3D
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen Threadripper PRO 3975WX | Ryzen 9 9955HX3D |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($368) | ⚠️ Higher cost ($749) |
| Longevity | ✨ Modern (Matisse (2019−2020) / 7 nm, 12 nm) | ✨ Modern (Fire Range-HX (Zen 5) (2025) / 4 nm) |
💎 Value Proposition
| Insight | Ryzen Threadripper PRO 3975WX | Ryzen 9 9955HX3D |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+106%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($368) | ⚠️ Higher cost ($749) |
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 3975WX and Ryzen 9 9955HX3D
Ryzen Threadripper PRO 3975WX
The Ryzen Threadripper PRO 3975WX is manufactured by AMD. It was released in 2020-07-14. It is based on the Matisse (2019−2020) architecture. It features 32 cores and 64 threads. Base frequency is 3.5 GHz, with boost up to 4.2 GHz. L3 cache: 128 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: sWRX8. Thermal design power (TDP): 280 Watt. Memory support: DDR4-3200. Passmark benchmark score: 62,261 points. Launch price was $4,499.
Ryzen 9 9955HX3D
The Ryzen 9 9955HX3D is manufactured by AMD. It was released in 2025-01-01. It is based on the Fire Range-HX (Zen 5) (2025) architecture. It features 16 cores and 32 threads. Base frequency is 2.5 GHz, with boost up to 5.4 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 61,578 points. Launch price was $700.
Processing Power
The Ryzen Threadripper PRO 3975WX packs 32 cores / 64 threads, while the Ryzen 9 9955HX3D offers 16 cores / 32 threads — the Ryzen Threadripper PRO 3975WX has 16 more cores. Boost clocks reach 4.2 GHz on the Ryzen Threadripper PRO 3975WX versus 5.4 GHz on the Ryzen 9 9955HX3D — a 25% clock advantage for the Ryzen 9 9955HX3D (base: 3.5 GHz vs 2.5 GHz). The Ryzen Threadripper PRO 3975WX uses the Matisse (2019−2020) architecture (7 nm, 12 nm), while the Ryzen 9 9955HX3D uses Fire Range-HX (Zen 5) (2025) (4 nm). In PassMark, the Ryzen Threadripper PRO 3975WX scores 62,261 against the Ryzen 9 9955HX3D's 61,578 — a 1.1% lead for the Ryzen Threadripper PRO 3975WX. L3 cache: 128 MB on the Ryzen Threadripper PRO 3975WX vs 128 MB (total) on the Ryzen 9 9955HX3D.
| Feature | Ryzen Threadripper PRO 3975WX | Ryzen 9 9955HX3D |
|---|---|---|
| Cores / Threads | 32 / 64+100% | 16 / 32 |
| Boost Clock | 4.2 GHz | 5.4 GHz+29% |
| Base Clock | 3.5 GHz+40% | 2.5 GHz |
| L3 Cache | 128 MB | 128 MB (total) |
| L2 Cache | 512K (per core) | 1 MB (per core)+100% |
| Process | 7 nm, 12 nm | 4 nm-43% |
| Architecture | Matisse (2019−2020) | Fire Range-HX (Zen 5) (2025) |
| PassMark | 62,261+1% | 61,578 |
| Cinebench R23 Multi | 42,986 | — |
| Geekbench 6 Single | 1,260 | — |
| Geekbench 6 Multi | 25,211 | — |
Memory & Platform
The Ryzen Threadripper PRO 3975WX uses the sWRX8 socket (PCIe 4.0), while the Ryzen 9 9955HX3D uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen Threadripper PRO 3975WX versus 5600 on the Ryzen 9 9955HX3D — the Ryzen 9 9955HX3D supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen Threadripper PRO 3975WX supports up to 2048 GB of RAM compared to 96 — 182.1% more capacity for professional workloads. Memory channels: 8 (Ryzen Threadripper PRO 3975WX) vs 2 (Ryzen 9 9955HX3D). PCIe lanes: 128 (Ryzen Threadripper PRO 3975WX) vs 28 (Ryzen 9 9955HX3D) — the Ryzen Threadripper PRO 3975WX offers 100 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD WRX80 (Ryzen Threadripper PRO 3975WX) and FL1 (Ryzen 9 9955HX3D).
| Feature | Ryzen Threadripper PRO 3975WX | Ryzen 9 9955HX3D |
|---|---|---|
| Socket | sWRX8 | FL1 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | DDR4-3200 | 5600+139900% |
| Max RAM Capacity | 2048 GB+2236962033% | 96 |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128+357% | 28 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 9 9955HX3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Ryzen Threadripper PRO 3975WX) vs VT-x, VT-d, AMD-V (Ryzen 9 9955HX3D). The Ryzen 9 9955HX3D includes integrated graphics (AMD Radeon 610M), while the Ryzen Threadripper PRO 3975WX requires a dedicated GPU. Direct competitor: Ryzen Threadripper PRO 3975WX rivals Xeon W-3375; Ryzen 9 9955HX3D rivals Core Ultra 9 185H.
| Feature | Ryzen Threadripper PRO 3975WX | Ryzen 9 9955HX3D |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | AMD Radeon 610M |
| Unlocked | Yes | Yes |
| AVX-512 | No | Yes |
| Virtualization | true | VT-x, VT-d, AMD-V |
Value Analysis
The Ryzen Threadripper PRO 3975WX launched at $1337 MSRP, while the Ryzen 9 9955HX3D debuted at $749.
| Feature | Ryzen Threadripper PRO 3975WX | Ryzen 9 9955HX3D |
|---|---|---|
| MSRP | $1337 | $749-44% |
| Avg Price (30d) | $368 | — |
| Release Date | 2020 | 2025 |
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