Ryzen 9 3900X vs Xeon w5-2445
Ryzen 9 3900X
Xeon w5-2445
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 Xeon w5-2445
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 3900X | Xeon w5-2445 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($441) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Matisse (Zen 2) (2019−2020) / 7 nm, 12 nm) | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) |
💎 Value Proposition
| Insight | Ryzen 9 3900X | Xeon w5-2445 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($441) | ✅ 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.
Technical Specifications
Side-by-side comparison of Ryzen 9 3900X and Xeon w5-2445
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.
Xeon w5-2445
The Xeon w5-2445 is manufactured by Intel. It was released in 15 February 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 10 cores and 20 threads. Base frequency is 3.1 GHz, with boost up to 4.6 GHz. L3 cache: 26.25 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 175 Watt. Memory support: DDR5-4800. Passmark benchmark score: 32,213 points. Launch price was $839.
Processing Power
The Ryzen 9 3900X packs 12 cores / 24 threads, while the Xeon w5-2445 offers 10 cores / 20 threads — the Ryzen 9 3900X has 2 more cores. Boost clocks reach 4.6 GHz on the Ryzen 9 3900X versus 4.6 GHz on the Xeon w5-2445 — identical boost frequencies (base: 3.8 GHz vs 3.1 GHz). The Ryzen 9 3900X uses the Matisse (Zen 2) (2019−2020) architecture (7 nm, 12 nm), while the Xeon w5-2445 uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the Ryzen 9 3900X scores 32,517 against the Xeon w5-2445's 32,213 — a 0.9% lead for the Ryzen 9 3900X. Geekbench 6 single-core — the metric most relevant to gaming — records 1,300 vs 1,822, a 33.4% lead for the Xeon w5-2445 that directly translates to higher frame rates. Multi-core Geekbench: 12,000 vs 10,719 (11.3% advantage for the Ryzen 9 3900X). L3 cache: 64 MB on the Ryzen 9 3900X vs 26.25 MB on the Xeon w5-2445.
| Feature | Ryzen 9 3900X | Xeon w5-2445 |
|---|---|---|
| Cores / Threads | 12 / 24+20% | 10 / 20 |
| Boost Clock | 4.6 GHz | 4.6 GHz |
| Base Clock | 3.8 GHz+23% | 3.1 GHz |
| L3 Cache | 64 MB+144% | 26.25 MB |
| L2 Cache | 512K (per core) | 2 MB (per core)+300% |
| Process | 7 nm, 12 nm | Intel 7 nm |
| Architecture | Matisse (Zen 2) (2019−2020) | Sapphire Rapids (2023−2024) |
| PassMark | 32,517 | 32,213 |
| Cinebench R23 Multi | — | 15,500 |
| Geekbench 6 Single | 1,300 | 1,822+40% |
| Geekbench 6 Multi | 12,000+12% | 10,719 |
Memory & Platform
The Ryzen 9 3900X uses the AM4 socket (PCIe 4.0), while the Xeon w5-2445 uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 3900X versus DDR5-4800 on the Xeon w5-2445 — the Xeon w5-2445 supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon w5-2445 supports up to 2048 GB of RAM compared to 128 GB — 176.5% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 3900X) vs 4 (Xeon w5-2445). PCIe lanes: 24 (Ryzen 9 3900X) vs 64 (Xeon w5-2445) — the Xeon w5-2445 offers 40 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X570,B550 (Ryzen 9 3900X) and W790 (Xeon w5-2445).
| Feature | Ryzen 9 3900X | Xeon w5-2445 |
|---|---|---|
| Socket | AM4 | LGA4677 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | DDR4-3200 | DDR5-4800+25% |
| Max RAM Capacity | 128 GB | 2048 GB+1500% |
| RAM Channels | 2 | 4+100% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 24 | 64+167% |
Advanced Features
Only the Ryzen 9 3900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon w5-2445 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 3900X) vs VT-x, VT-d, EPT (Xeon w5-2445). Primary use case: Ryzen 9 3900X targets Workstation, Xeon w5-2445 targets Professional Workstation. Direct competitor: Xeon w5-2445 rivals Threadripper 7945WX.
| Feature | Ryzen 9 3900X | Xeon w5-2445 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | AMD-V | VT-x, VT-d, EPT |
| Target Use | Workstation | Professional Workstation |
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