Ryzen 9 3900 vs Xeon Gold 6246R
Ryzen 9 3900
Xeon Gold 6246R
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 Xeon Gold 6246R
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 3900 | Xeon Gold 6246R |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower 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 (Cascade Lake (2019−2020) / 14 nm) |
💎 Value Proposition
| Insight | Ryzen 9 3900 | Xeon Gold 6246R |
|---|---|---|
| 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.
Technical Specifications
Side-by-side comparison of Ryzen 9 3900 and Xeon Gold 6246R
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.
Xeon Gold 6246R
The Xeon Gold 6246R is manufactured by Intel. It was released in 24 February 2020 (5 years ago). It is based on the Cascade Lake (2019−2020) architecture. It features 16 cores and 32 threads. Base frequency is 3.4 GHz, with boost up to 4.1 GHz. L3 cache: 35.75 MB. L2 cache: 16 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 205 Watt. Memory support: DDR4-2933. Passmark benchmark score: 30,468 points. Launch price was $3,286.
Processing Power
The Ryzen 9 3900 packs 12 cores / 24 threads, while the Xeon Gold 6246R offers 16 cores / 32 threads — the Xeon Gold 6246R has 4 more cores. Boost clocks reach 4.3 GHz on the Ryzen 9 3900 versus 4.1 GHz on the Xeon Gold 6246R — a 4.8% clock advantage for the Ryzen 9 3900 (base: 3.1 GHz vs 3.4 GHz). The Ryzen 9 3900 uses the Matisse (Zen 2) (2019−2020) architecture (7 nm, 12 nm), while the Xeon Gold 6246R uses Cascade Lake (2019−2020) (14 nm). In PassMark, the Ryzen 9 3900 scores 30,588 against the Xeon Gold 6246R's 30,468 — a 0.4% lead for the Ryzen 9 3900. Cinebench R23 multi-core: 17,700 vs 16,000 (10.1% advantage for the Ryzen 9 3900). Geekbench 6 single-core — the metric most relevant to gaming — records 1,713 vs 1,293, a 27.9% lead for the Ryzen 9 3900 that directly translates to higher frame rates. Multi-core Geekbench: 10,983 vs 9,848 (10.9% advantage for the Ryzen 9 3900). L3 cache: 64 MB on the Ryzen 9 3900 vs 35.75 MB on the Xeon Gold 6246R.
| Feature | Ryzen 9 3900 | Xeon Gold 6246R |
|---|---|---|
| Cores / Threads | 12 / 24 | 16 / 32+33% |
| Boost Clock | 4.3 GHz+5% | 4.1 GHz |
| Base Clock | 3.1 GHz | 3.4 GHz+10% |
| L3 Cache | 64 MB+79% | 35.75 MB |
| L2 Cache | 512 kB (per core) | 16 MB+3100% |
| Process | 7 nm, 12 nm-50% | 14 nm |
| Architecture | Matisse (Zen 2) (2019−2020) | Cascade Lake (2019−2020) |
| PassMark | 30,588 | 30,468 |
| Cinebench R23 Multi | 17,700+11% | 16,000 |
| Geekbench 6 Single | 1,713+32% | 1,293 |
| Geekbench 6 Multi | 10,983+12% | 9,848 |
Memory & Platform
The Ryzen 9 3900 uses the AM4 socket (PCIe 4.0), while the Xeon Gold 6246R uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 memory speed. The Xeon Gold 6246R supports up to 1024 GB of RAM compared to 128 GB — 155.6% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 3900) vs 6 (Xeon Gold 6246R). PCIe lanes: 24 (Ryzen 9 3900) vs 48 (Xeon Gold 6246R) — the Xeon Gold 6246R offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X570,B550,X470,B450 (Ryzen 9 3900) and Lewisburg (Xeon Gold 6246R).
| Feature | Ryzen 9 3900 | Xeon Gold 6246R |
|---|---|---|
| Socket | AM4 | LGA3647 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
| Max RAM Speed | DDR4-3200 | DDR4-2933 |
| Max RAM Capacity | 128 GB | 1024 GB+700% |
| RAM Channels | 2 | 6+200% |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 24 | 48+100% |
Advanced Features
Only the Ryzen 9 3900 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon Gold 6246R supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 3900) vs VT-x, VT-d, EPT (Xeon Gold 6246R). Primary use case: Ryzen 9 3900 targets Workstation Desktop (low power), Xeon Gold 6246R targets High-frequency Server / Financial. Direct competitor: Ryzen 9 3900 rivals Core i9-9900; Xeon Gold 6246R rivals EPYC 7302.
| Feature | Ryzen 9 3900 | Xeon Gold 6246R |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | AMD-V | VT-x, VT-d, EPT |
| Target Use | Workstation Desktop (low power) | High-frequency Server / Financial |
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