Ryzen 9 3900X
Ryzen AI 9 HX PRO 370
Ryzen 9 3900X vs Ryzen AI 9 HX PRO 370 Performance Spectrum
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.
Ryzen 9 3900X vs Ryzen AI 9 HX PRO 370 FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
Ryzen 9 3900X vs Ryzen AI 9 HX PRO 370: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
Ryzen 9 3900X
2019Why buy it
- ✅Better for gaming: +35.3% higher average FPS across 50 shared CPU benchmark tests.
- ✅+300% larger total L3 cache (64 MB vs 16 MB).
- ✅Costs $1 less on MSRP ($499 MSRP vs $500 MSRP).
- ✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.
- ✅Includes a boxed cooler (Wraith Prism), unlike Ryzen AI 9 HX PRO 370.
Trade-offs
- ❌Lower PassMark (32,517 vs 32,841).
- ❌275% higher power demand at 105W vs 28W.
- ❌Older platform position on AM4 with DDR4, while Ryzen AI 9 HX PRO 370 moves to FP8 and DDR5.
- ❌No integrated graphics, while Ryzen AI 9 HX PRO 370 can still boot and troubleshoot without a discrete GPU.
Ryzen AI 9 HX PRO 370
2025Why buy it
- ✅+1% higher PassMark.
- ✅Draws 28W instead of 105W, a 77W reduction.
- ✅Newer platform on FP8 with DDR5 support instead of AM4 and DDR4.
- ✅Integrated graphics onboard with Radeon 890M, while Ryzen 9 3900X needs a discrete GPU.
Trade-offs
- ❌Worse for gaming: lower average FPS than Ryzen 9 3900X across 50 shared CPU benchmark tests.
- ❌Smaller total L3 cache (16 MB vs 64 MB).
- ❌0.2% HIGHER MSRP$500 MSRPvs$499 MSRP
- ❌No boxed cooler included, unlike Ryzen 9 3900X.
Quick Answers
So, is Ryzen AI 9 HX PRO 370 better than Ryzen 9 3900X?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Ryzen 9 3900X vs Ryzen AI 9 HX PRO 370 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
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)+51100% | 1 MB (per core) |
| 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 150% 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 — 100% 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+150% |
| Max RAM Capacity | 128 GB+100% | 64 GB |
| RAM Channels | 2 | 2 |
| ECC Support | Yes | Yes |
| 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
At launch, the Ryzen 9 3900X was priced at $499, while the Ryzen AI 9 HX PRO 370 came in at $500. On launch pricing ($499 vs $500), Ryzen 9 3900X was $1 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 3900X delivers 65.2 pts/$ vs 65.7 pts/$ for the Ryzen AI 9 HX PRO 370 — making the Ryzen AI 9 HX PRO 370 the 0.8% better value option.
| Feature | Ryzen 9 3900X | Ryzen AI 9 HX PRO 370 |
|---|---|---|
| MSRP | $499 | $500 |
| Performance per Dollar | 65.2 | 65.7 |
| Release Date | 2019 | 2025 |
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