Ryzen 9 9955HX vs Ryzen Threadripper PRO 9945WX
Ryzen 9 9955HX
Ryzen Threadripper PRO 9945WX
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
Performance Per Dollar Ryzen Threadripper PRO 9945WX
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 9955HX | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($1,340) |
| Longevity | ✨ Modern (Fire Range-HX (Zen 5) (2025) / 4 nm) | ✨ Modern (Shimada Peak (2025) / 4 nm) |
💎 Value Proposition
| Insight | Ryzen 9 9955HX | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($1,340) |
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.
League of Legends
Valorant
Technical Specifications
Side-by-side comparison of Ryzen 9 9955HX and Ryzen Threadripper PRO 9945WX
Ryzen 9 9955HX
The Ryzen 9 9955HX 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: 64 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: 55,711 points. Launch price was $650.
Ryzen Threadripper PRO 9945WX
The Ryzen Threadripper PRO 9945WX is manufactured by AMD. It was released in 2025-01-01. It is based on the Shimada Peak (2025) architecture. It features 12 cores and 24 threads. Base frequency is 4.7 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: 56,854 points. Launch price was $2,000.
Processing Power
The Ryzen 9 9955HX packs 16 cores / 32 threads, while the Ryzen Threadripper PRO 9945WX offers 12 cores / 24 threads — the Ryzen 9 9955HX has 4 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 9955HX versus 5.4 GHz on the Ryzen Threadripper PRO 9945WX — identical boost frequencies (base: 2.5 GHz vs 4.7 GHz). The Ryzen 9 9955HX uses the Fire Range-HX (Zen 5) (2025) architecture (4 nm), while the Ryzen Threadripper PRO 9945WX uses Shimada Peak (2025) (4 nm). In PassMark, the Ryzen 9 9955HX scores 55,711 against the Ryzen Threadripper PRO 9945WX's 56,854 — a 2% lead for the Ryzen Threadripper PRO 9945WX. Both processors carry 64 MB (total) of L3 cache.
| Feature | Ryzen 9 9955HX | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Cores / Threads | 16 / 32+33% | 12 / 24 |
| Boost Clock | 5.4 GHz | 5.4 GHz |
| Base Clock | 2.5 GHz | 4.7 GHz+88% |
| L3 Cache | 64 MB (total) | 64 MB (total) |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 4 nm | 4 nm |
| Architecture | Fire Range-HX (Zen 5) (2025) | Shimada Peak (2025) |
| PassMark | 55,711 | 56,854+2% |
| Cinebench R23 Multi | 38,010 | — |
| Geekbench 6 Single | 3,219 | — |
| Geekbench 6 Multi | 19,563 | — |
Memory & Platform
The Ryzen 9 9955HX uses the FL1 socket (PCIe 5.0), while the Ryzen Threadripper PRO 9945WX uses sTR5 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Ryzen 9 9955HX versus 6400 on the Ryzen Threadripper PRO 9945WX — the Ryzen Threadripper PRO 9945WX supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen Threadripper PRO 9945WX supports up to 2048 of RAM compared to 96 GB — 182.1% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 9955HX) vs 8 (Ryzen Threadripper PRO 9945WX). PCIe lanes: 28 (Ryzen 9 9955HX) vs 128 (Ryzen Threadripper PRO 9945WX) — the Ryzen Threadripper PRO 9945WX offers 100 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD FL1 (Ryzen 9 9955HX) and WRX90,TRX50 (Ryzen Threadripper PRO 9945WX).
| Feature | Ryzen 9 9955HX | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Socket | FL1 | sTR5 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-5600 | 6400+127900% |
| Max RAM Capacity | 96 GB+4915100% | 2048 |
| RAM Channels | 2 | 8+300% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 28 | 128+357% |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: true (Ryzen 9 9955HX) vs VT-x, VT-d, AMD-V (Ryzen Threadripper PRO 9945WX). The Ryzen 9 9955HX includes integrated graphics (Radeon 610M), while the Ryzen Threadripper PRO 9945WX requires a dedicated GPU. Direct competitor: Ryzen 9 9955HX rivals Core Ultra 9 275HX; Ryzen Threadripper PRO 9945WX rivals Xeon w7-3545.
| Feature | Ryzen 9 9955HX | Ryzen Threadripper PRO 9945WX |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Radeon 610M | None |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | true | VT-x, VT-d, AMD-V |
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