Ryzen 9 3900X vs Ryzen AI 9 HX PRO 370
Ryzen 9 3900X
Ryzen AI 9 HX PRO 370
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 9 3900X
Performance Per Dollar Ryzen AI 9 HX PRO 370
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 3900X | Ryzen AI 9 HX PRO 370 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($441) | ⚠️ Higher cost ($500) |
| Longevity | ✨ Modern (Matisse (Zen 2) (2019−2020) / 7 nm, 12 nm) | ✨ Modern (Strix Point-HX PRO (Zen 5/5c) (2025) / 4 nm) |
💎 Value Proposition
| Insight | Ryzen 9 3900X | Ryzen AI 9 HX PRO 370 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+12%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($441) | ⚠️ Higher cost ($500) |
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 9 3900X and Ryzen AI 9 HX PRO 370
Ryzen 9 3900X
The Ryzen 9 3900X is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 12 cores and 24 threads. Base frequency is 3.8 GHz, with boost up to 4.6 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 125 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 32,517 points. Launch price was $499.
Ryzen AI 9 HX PRO 370
The Ryzen AI 9 HX PRO 370 is manufactured by AMD. It was released in 6 January 2025 (less than a year ago). It is based on the Strix Point-HX PRO (Zen 5/5c) (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: 32,841 points. Launch price was $499.
Processing Power
Both the Ryzen 9 3900X and Ryzen AI 9 HX PRO 370 share an identical 12-core/24-thread configuration. Boost clocks reach 4.6 GHz on the Ryzen 9 3900X versus 5.1 GHz on the Ryzen AI 9 HX PRO 370 — a 10.3% clock advantage for the Ryzen AI 9 HX PRO 370 (base: 3.8 GHz vs 2 GHz). The Ryzen 9 3900X uses the Matisse (Zen 2) (2019−2020) architecture (7 nm, 12 nm), while the Ryzen AI 9 HX PRO 370 uses Strix Point-HX PRO (Zen 5/5c) (2025) (4 nm). In PassMark, the Ryzen 9 3900X scores 32,517 against the Ryzen AI 9 HX PRO 370's 32,841 — a 1% lead for the Ryzen AI 9 HX PRO 370. L3 cache: 64 MB on the Ryzen 9 3900X vs 16 MB on the Ryzen AI 9 HX PRO 370.
| Feature | Ryzen 9 3900X | Ryzen AI 9 HX PRO 370 |
|---|---|---|
| Cores / Threads | 12 / 24 | 12 / 24 |
| Boost Clock | 4.6 GHz | 5.1 GHz+11% |
| Base Clock | 3.8 GHz+90% | 2 GHz |
| L3 Cache | 64 MB+300% | 16 MB |
| L2 Cache | 512K (per core) | 1 MB (per core)+100% |
| Process | 7 nm, 12 nm | 4 nm-43% |
| Architecture | Matisse (Zen 2) (2019−2020) | Strix Point-HX PRO (Zen 5/5c) (2025) |
| PassMark | 32,517 | 32,841 |
| Geekbench 6 Single | 1,300 | — |
| Geekbench 6 Multi | 12,000 | — |
Memory & Platform
The Ryzen 9 3900X uses the AM4 socket (PCIe 4.0), while the Ryzen AI 9 HX PRO 370 uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 3900X versus LPDDR5X-8000 on the Ryzen AI 9 HX PRO 370 — the Ryzen AI 9 HX PRO 370 supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 3900X supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 9 3900X) vs 20 (Ryzen AI 9 HX PRO 370) — the Ryzen 9 3900X offers 4 more lanes for additional GPUs or NVMe drives.
| Feature | Ryzen 9 3900X | Ryzen AI 9 HX PRO 370 |
|---|---|---|
| Socket | AM4 | FP8 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | LPDDR5X-8000+25% |
| Max RAM Capacity | 128 GB+100% | 64 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 24+20% | 20 |
Advanced Features
Only the Ryzen 9 3900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen AI 9 HX PRO 370 supports AVX-512 instructions — important for machine learning and scientific applications. Both support AMD-V virtualization. The Ryzen AI 9 HX PRO 370 includes integrated graphics (Radeon 890M), while the Ryzen 9 3900X requires a dedicated GPU. Primary use case: Ryzen 9 3900X targets Workstation, Ryzen AI 9 HX PRO 370 targets Mobile Workstation / AI.
| Feature | Ryzen 9 3900X | Ryzen AI 9 HX PRO 370 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | Radeon 890M |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | AMD-V | AMD-V |
| Target Use | Workstation | Mobile Workstation / AI |
Value Analysis
The Ryzen 9 3900X launched at $499 MSRP, while the Ryzen AI 9 HX PRO 370 debuted at $500. At current prices ($441 vs $500), the Ryzen 9 3900X is $59 cheaper. In terms of value (PassMark points per dollar), the Ryzen 9 3900X delivers 73.7 pts/$ vs 65.7 pts/$ for the Ryzen AI 9 HX PRO 370 — making the Ryzen 9 3900X the 11.6% better value option.
| Feature | Ryzen 9 3900X | Ryzen AI 9 HX PRO 370 |
|---|---|---|
| MSRP | $499 | $500 |
| Avg Price (30d) | $441-12% | $500 |
| Performance per Dollar | 73.7+12% | 65.7 |
| Release Date | 2019 | 2025 |
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