Ryzen 9 3900 vs Ryzen 9 PRO 8945HS
Ryzen 9 3900
Ryzen 9 PRO 8945HS
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 3900
Performance Per Dollar Ryzen 9 PRO 8945HS
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 3900 | Ryzen 9 PRO 8945HS |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($150) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Matisse (Zen 2) (2019−2020) / 7 nm, 12 nm) | ✨ Modern (Hawk Point-HS (Zen 4) (2023−2024) / 4 nm) |
💎 Value Proposition
| Insight | Ryzen 9 3900 | Ryzen 9 PRO 8945HS |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($150) | ✅ More affordable ($0) |
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.
Path of Exile 2
League of Legends
Valorant
Technical Specifications
Side-by-side comparison of Ryzen 9 3900 and Ryzen 9 PRO 8945HS
Ryzen 9 3900
The Ryzen 9 3900 is manufactured by AMD. It was released in 24 September 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 3.1 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: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 30,588 points. Launch price was $499.
Ryzen 9 PRO 8945HS
The Ryzen 9 PRO 8945HS is manufactured by AMD. It was released in 16 April 2024 (1 year ago). It is based on the Hawk Point-HS (Zen 4) (2023−2024) architecture. It features 8 cores and 16 threads. Base frequency is 4 GHz, with boost up to 5.2 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP7. Thermal design power (TDP): 45 Watt. Memory support: DDR5. Passmark benchmark score: 30,689 points. Launch price was $499.
Processing Power
The Ryzen 9 3900 packs 12 cores / 24 threads, while the Ryzen 9 PRO 8945HS offers 8 cores / 16 threads — the Ryzen 9 3900 has 4 more cores. Boost clocks reach 4.3 GHz on the Ryzen 9 3900 versus 5.2 GHz on the Ryzen 9 PRO 8945HS — a 18.9% clock advantage for the Ryzen 9 PRO 8945HS (base: 3.1 GHz vs 4 GHz). The Ryzen 9 3900 uses the Matisse (Zen 2) (2019−2020) architecture (7 nm, 12 nm), while the Ryzen 9 PRO 8945HS uses Hawk Point-HS (Zen 4) (2023−2024) (4 nm). In PassMark, the Ryzen 9 3900 scores 30,588 against the Ryzen 9 PRO 8945HS's 30,689 — a 0.3% lead for the Ryzen 9 PRO 8945HS. Cinebench R23 multi-core: 17,700 vs 16,529 (6.8% advantage for the Ryzen 9 3900). Geekbench 6 single-core — the metric most relevant to gaming — records 1,713 vs 2,617, a 41.8% lead for the Ryzen 9 PRO 8945HS that directly translates to higher frame rates. Multi-core Geekbench: 10,983 vs 13,098 (17.6% advantage for the Ryzen 9 PRO 8945HS). L3 cache: 64 MB on the Ryzen 9 3900 vs 16 MB (total) on the Ryzen 9 PRO 8945HS.
| Feature | Ryzen 9 3900 | Ryzen 9 PRO 8945HS |
|---|---|---|
| Cores / Threads | 12 / 24+50% | 8 / 16 |
| Boost Clock | 4.3 GHz | 5.2 GHz+21% |
| Base Clock | 3.1 GHz | 4 GHz+29% |
| L3 Cache | 64 MB+300% | 16 MB (total) |
| L2 Cache | 512 kB (per core) | 1 MB (per core)+100% |
| Process | 7 nm, 12 nm | 4 nm-43% |
| Architecture | Matisse (Zen 2) (2019−2020) | Hawk Point-HS (Zen 4) (2023−2024) |
| PassMark | 30,588 | 30,689 |
| Cinebench R23 Multi | 17,700+7% | 16,529 |
| Geekbench 6 Single | 1,713 | 2,617+53% |
| Geekbench 6 Multi | 10,983 | 13,098+19% |
Memory & Platform
The Ryzen 9 3900 uses the AM4 socket (PCIe 4.0), while the Ryzen 9 PRO 8945HS uses FP7 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 3900 versus DDR5-5600 on the Ryzen 9 PRO 8945HS — the Ryzen 9 PRO 8945HS supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 PRO 8945HS supports up to 256 GB of RAM compared to 128 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 9 3900) vs 20 (Ryzen 9 PRO 8945HS) — the Ryzen 9 3900 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X570,B550,X470,B450 (Ryzen 9 3900) and FP7,FP7r2,FP8 (Ryzen 9 PRO 8945HS).
| Feature | Ryzen 9 3900 | Ryzen 9 PRO 8945HS |
|---|---|---|
| Socket | AM4 | FP7 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | DDR5-5600+25% |
| Max RAM Capacity | 128 GB | 256 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 24+20% | 20 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 9 PRO 8945HS supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 3900) vs AMD-V, SVM (Ryzen 9 PRO 8945HS). The Ryzen 9 PRO 8945HS includes integrated graphics (Radeon 780M), while the Ryzen 9 3900 requires a dedicated GPU. Primary use case: Ryzen 9 3900 targets Workstation Desktop (low power), Ryzen 9 PRO 8945HS targets Professional AI Business Laptop. Direct competitor: Ryzen 9 3900 rivals Core i9-9900; Ryzen 9 PRO 8945HS rivals Core Ultra 9 185H.
| Feature | Ryzen 9 3900 | Ryzen 9 PRO 8945HS |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Radeon 780M |
| Unlocked | Yes | Yes |
| AVX-512 | No | Yes |
| Virtualization | AMD-V | AMD-V, SVM |
| Target Use | Workstation Desktop (low power) | Professional AI Business Laptop |
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