Ryzen AI 9 HX PRO 375 vs Ryzen Threadripper PRO 3945WX
Ryzen AI 9 HX PRO 375
Ryzen Threadripper PRO 3945WX
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 3945WX
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen AI 9 HX PRO 375 | Ryzen Threadripper PRO 3945WX |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($100) |
| Longevity | ✨ Modern (Strix Point (2024−2025) / 4 nm) | ✨ Modern (Castle Peak (2020) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Ryzen AI 9 HX PRO 375 | Ryzen Threadripper PRO 3945WX |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($100) |
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 AI 9 HX PRO 375 and Ryzen Threadripper PRO 3945WX
Ryzen AI 9 HX PRO 375
The Ryzen AI 9 HX PRO 375 is manufactured by AMD. It was released in 6 January 2025 (less than a year ago). It is based on the Strix Point (2024−2025) architecture. It features 12 cores and 24 threads. Base frequency is 2 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB. L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 28 Watt. Memory support: DDR5. Passmark benchmark score: 33,619 points. Launch price was $499.
Ryzen Threadripper PRO 3945WX
The Ryzen Threadripper PRO 3945WX is manufactured by AMD. It was released in 14 July 2020 (5 years ago). It is based on the Castle Peak (2020) architecture. It features 12 cores and 24 threads. Base frequency is 4 GHz, with boost up to 4.3 GHz. L3 cache: 64 MB. L2 cache: 512 kB (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: 33,455 points. Launch price was $499.
Processing Power
Both the Ryzen AI 9 HX PRO 375 and Ryzen Threadripper PRO 3945WX share an identical 12-core/24-thread configuration. Boost clocks reach 5.1 GHz on the Ryzen AI 9 HX PRO 375 versus 4.3 GHz on the Ryzen Threadripper PRO 3945WX — a 17% clock advantage for the Ryzen AI 9 HX PRO 375 (base: 2 GHz vs 4 GHz). The Ryzen AI 9 HX PRO 375 uses the Strix Point (2024−2025) architecture (4 nm), while the Ryzen Threadripper PRO 3945WX uses Castle Peak (2020) (7 nm, 12 nm). In PassMark, the Ryzen AI 9 HX PRO 375 scores 33,619 against the Ryzen Threadripper PRO 3945WX's 33,455 — a 0.5% lead for the Ryzen AI 9 HX PRO 375. Cinebench R23 multi-core: 22,246 vs 18,500 (18.4% advantage for the Ryzen AI 9 HX PRO 375). Geekbench 6 single-core — the metric most relevant to gaming — records 2,864 vs 1,652, a 53.7% lead for the Ryzen AI 9 HX PRO 375 that directly translates to higher frame rates. Multi-core Geekbench: 15,012 vs 11,500 (26.5% advantage for the Ryzen AI 9 HX PRO 375). L3 cache: 16 MB on the Ryzen AI 9 HX PRO 375 vs 64 MB on the Ryzen Threadripper PRO 3945WX.
| Feature | Ryzen AI 9 HX PRO 375 | Ryzen Threadripper PRO 3945WX |
|---|---|---|
| Cores / Threads | 12 / 24 | 12 / 24 |
| Boost Clock | 5.1 GHz+19% | 4.3 GHz |
| Base Clock | 2 GHz | 4 GHz+100% |
| L3 Cache | 16 MB | 64 MB+300% |
| L2 Cache | 1 MB (per core)+100% | 512 kB (per core) |
| Process | 4 nm-43% | 7 nm, 12 nm |
| Architecture | Strix Point (2024−2025) | Castle Peak (2020) |
| PassMark | 33,619 | 33,455 |
| Cinebench R23 Multi | 22,246+20% | 18,500 |
| Geekbench 6 Single | 2,864+73% | 1,652 |
| Geekbench 6 Multi | 15,012+31% | 11,500 |
Memory & Platform
The Ryzen AI 9 HX PRO 375 uses the FP8 socket (PCIe 4.0), while the Ryzen Threadripper PRO 3945WX uses sWRX8 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches LPDDR5x-8000 on the Ryzen AI 9 HX PRO 375 versus DDR4-3200 on the Ryzen Threadripper PRO 3945WX — the Ryzen AI 9 HX PRO 375 supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen Threadripper PRO 3945WX supports up to 2048 GB of RAM compared to 256 GB — 155.6% more capacity for professional workloads. Memory channels: 2 (Ryzen AI 9 HX PRO 375) vs 8 (Ryzen Threadripper PRO 3945WX). PCIe lanes: 16 (Ryzen AI 9 HX PRO 375) vs 128 (Ryzen Threadripper PRO 3945WX) — the Ryzen Threadripper PRO 3945WX offers 112 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FP8,FP7 (Ryzen AI 9 HX PRO 375) and WRX80 (Ryzen Threadripper PRO 3945WX).
| Feature | Ryzen AI 9 HX PRO 375 | Ryzen Threadripper PRO 3945WX |
|---|---|---|
| Socket | FP8 | sWRX8 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | LPDDR5x-8000+25% | DDR4-3200 |
| Max RAM Capacity | 256 GB | 2048 GB+700% |
| RAM Channels | 2 | 8+300% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 16 | 128+700% |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the Ryzen AI 9 HX PRO 375 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V, IOMMU (Ryzen AI 9 HX PRO 375) vs AMD-V (Ryzen Threadripper PRO 3945WX). The Ryzen AI 9 HX PRO 375 includes integrated graphics (Radeon 890M), while the Ryzen Threadripper PRO 3945WX requires a dedicated GPU. Primary use case: Ryzen AI 9 HX PRO 375 targets Mobile Workstation / High-end Gaming, Ryzen Threadripper PRO 3945WX targets Professional Workstation. Direct competitor: Ryzen AI 9 HX PRO 375 rivals Core i9-14900HX; Ryzen Threadripper PRO 3945WX rivals Xeon w5-2455X.
| Feature | Ryzen AI 9 HX PRO 375 | Ryzen Threadripper PRO 3945WX |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Radeon 890M | — |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | No |
| Virtualization | AMD-V, IOMMU | AMD-V |
| Target Use | Mobile Workstation / High-end Gaming | Professional Workstation |
Value Analysis
The Ryzen AI 9 HX PRO 375 launched at $0 MSRP, while the Ryzen Threadripper PRO 3945WX debuted at $1149. At current prices ($0 vs $100), the Ryzen AI 9 HX PRO 375 is $100 cheaper.
| Feature | Ryzen AI 9 HX PRO 375 | Ryzen Threadripper PRO 3945WX |
|---|---|---|
| MSRP | $0-100% | $1149 |
| Avg Price (30d) | $0-100% | $100 |
| Performance per Dollar | — | 334.6 |
| Release Date | 2025 | 2020 |
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