Ryzen 9 3900 vs Ryzen 5 5600X
Ryzen 9 3900
Popular choices:
Ryzen 5 5600X
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 5 5600X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 3900 | Ryzen 5 5600X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($150) | ✅ More affordable ($135) |
| Longevity | ✨ Modern (Matisse (Zen 2) (2019−2020) / 7 nm, 12 nm) | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Ryzen 9 3900 | Ryzen 5 5600X |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+26%) | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($150) | ✅ More affordable ($135) |
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 3900 and Ryzen 5 5600X
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 5 5600X
The Ryzen 5 5600X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 6 cores and 12 threads. Base frequency is 3.7 GHz, with boost up to 4.6 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 21,845 points. Launch price was $299.
Processing Power
The Ryzen 9 3900 packs 12 cores / 24 threads, while the Ryzen 5 5600X offers 6 cores / 12 threads — the Ryzen 9 3900 has 6 more cores. Boost clocks reach 4.3 GHz on the Ryzen 9 3900 versus 4.6 GHz on the Ryzen 5 5600X — a 6.7% clock advantage for the Ryzen 5 5600X (base: 3.1 GHz vs 3.7 GHz). The Ryzen 9 3900 uses the Matisse (Zen 2) (2019−2020) architecture (7 nm, 12 nm), while the Ryzen 5 5600X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the Ryzen 9 3900 scores 30,588 against the Ryzen 5 5600X's 21,845 — a 33.3% lead for the Ryzen 9 3900. L3 cache: 64 MB on the Ryzen 9 3900 vs 32 MB on the Ryzen 5 5600X.
| Feature | Ryzen 9 3900 | Ryzen 5 5600X |
|---|---|---|
| Cores / Threads | 12 / 24+100% | 6 / 12 |
| Boost Clock | 4.3 GHz | 4.6 GHz+7% |
| Base Clock | 3.1 GHz | 3.7 GHz+19% |
| L3 Cache | 64 MB+100% | 32 MB |
| L2 Cache | 512 kB (per core) | 512K (per core) |
| Process | 7 nm, 12 nm | 7 nm, 12 nm |
| Architecture | Matisse (Zen 2) (2019−2020) | Vermeer (Zen 3) (2020−2022) |
| PassMark | 30,588+40% | 21,845 |
| Cinebench R23 Multi | 17,700 | — |
| Geekbench 6 Single | 1,713 | — |
| Geekbench 6 Multi | 10,983 | — |
Memory & Platform
Both processors use the AM4 socket with PCIe 4.0. Both support up to DDR4-3200 memory speed. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 24 PCIe lanes. Chipset compatibility: X570,B550,X470,B450 (Ryzen 9 3900) and AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 5 5600X).
| Feature | Ryzen 9 3900 | Ryzen 5 5600X |
|---|---|---|
| Socket | AM4 | AM4 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | DDR4-3200 |
| Max RAM Capacity | 128 GB | 128 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 24 | 24 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Both support AMD-V virtualization. Primary use case: Ryzen 9 3900 targets Workstation Desktop (low power), Ryzen 5 5600X targets Desktop. Direct competitor: Ryzen 9 3900 rivals Core i9-9900.
| Feature | Ryzen 9 3900 | Ryzen 5 5600X |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | Yes | Yes |
| AVX-512 | No | No |
| Virtualization | AMD-V | AMD-V |
| Target Use | Workstation Desktop (low power) | Desktop |
Value Analysis
The Ryzen 9 3900 launched at $499 MSRP, while the Ryzen 5 5600X debuted at $299. At current prices ($150 vs $135), the Ryzen 5 5600X is $15 cheaper. In terms of value (PassMark points per dollar), the Ryzen 9 3900 delivers 203.9 pts/$ vs 161.8 pts/$ for the Ryzen 5 5600X — making the Ryzen 9 3900 the 23% better value option.
| Feature | Ryzen 9 3900 | Ryzen 5 5600X |
|---|---|---|
| MSRP | $499 | $299-40% |
| Avg Price (30d) | $150 | $135-10% |
| Performance per Dollar | 203.9+26% | 161.8 |
| Release Date | 2019 | 2020 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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