Ryzen Threadripper PRO 3955WX vs Xeon Gold 6338
Ryzen Threadripper PRO 3955WX
Xeon Gold 6338
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 Threadripper PRO 3955WX
Performance Per Dollar Xeon Gold 6338
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen Threadripper PRO 3955WX | Xeon Gold 6338 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($1,130) | ⚠️ Higher cost ($1,604) |
| Longevity | ✨ Modern (Castle Peak (2020) / 7 nm, 12 nm) | ✨ Modern (Legacy / 10 nm) |
💎 Value Proposition
| Insight | Ryzen Threadripper PRO 3955WX | Xeon Gold 6338 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+41%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($1,130) | ⚠️ Higher cost ($1,604) |
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 Threadripper PRO 3955WX and Xeon Gold 6338
Ryzen Threadripper PRO 3955WX
The Ryzen Threadripper PRO 3955WX is manufactured by AMD. It was released in 14 July 2020 (5 years ago). It is based on the Castle Peak (2020) architecture. It features 16 cores and 32 threads. Base frequency is 3.9 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: sWRX8. Thermal design power (TDP): 280 Watt. Memory support: DDR4-3200. Passmark benchmark score: 39,929 points. Launch price was $1,149.
Xeon Gold 6338
The Xeon Gold 6338 is manufactured by Intel. It was released in 2015-01-01. It features 32 cores and 64 threads. Base frequency is 2 GHz, with boost up to 3.2 GHz. L3 cache: 48 MB. Built on 10 nm process technology. Socket: LGA4189. Thermal design power (TDP): 205 Watt. Memory support: DDR4-3200. Passmark benchmark score: 40,225 points. Launch price was $800.
Processing Power
The Ryzen Threadripper PRO 3955WX packs 16 cores / 32 threads, while the Xeon Gold 6338 offers 32 cores / 64 threads — the Xeon Gold 6338 has 16 more cores. Boost clocks reach 4.3 GHz on the Ryzen Threadripper PRO 3955WX versus 3.2 GHz on the Xeon Gold 6338 — a 29.3% clock advantage for the Ryzen Threadripper PRO 3955WX (base: 3.9 GHz vs 2 GHz). The Ryzen Threadripper PRO 3955WX is built on the Castle Peak (2020) architecture. In PassMark, the Ryzen Threadripper PRO 3955WX scores 39,929 against the Xeon Gold 6338's 40,225 — a 0.7% lead for the Xeon Gold 6338. L3 cache: 64 MB on the Ryzen Threadripper PRO 3955WX vs 48 MB on the Xeon Gold 6338.
| Feature | Ryzen Threadripper PRO 3955WX | Xeon Gold 6338 |
|---|---|---|
| Cores / Threads | 16 / 32 | 32 / 64+100% |
| Boost Clock | 4.3 GHz+34% | 3.2 GHz |
| Base Clock | 3.9 GHz+95% | 2 GHz |
| L3 Cache | 64 MB+33% | 48 MB |
| L2 Cache | 512 kB (per core) | — |
| Process | 7 nm, 12 nm-30% | 10 nm |
| Architecture | Castle Peak (2020) | — |
| PassMark | 39,929 | 40,225 |
Memory & Platform
The Ryzen Threadripper PRO 3955WX uses the sWRX8 socket (PCIe 4.0), while the Xeon Gold 6338 uses LGA4189 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to 3200 memory speed. The Xeon Gold 6338 supports up to 6144 of RAM compared to 2048 — 100% more capacity for professional workloads. Both feature 8-channel memory with ECC support. PCIe lanes: 128 (Ryzen Threadripper PRO 3955WX) vs 64 (Xeon Gold 6338) — the Ryzen Threadripper PRO 3955WX offers 64 more lanes for additional GPUs or NVMe drives. Chipset compatibility: WRX80 (Ryzen Threadripper PRO 3955WX) and C621A (Xeon Gold 6338).
| Feature | Ryzen Threadripper PRO 3955WX | Xeon Gold 6338 |
|---|---|---|
| Socket | sWRX8 | LGA4189 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 3200 | 3200 |
| Max RAM Capacity | 2048 | 6144+200% |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128+100% | 64 |
Advanced Features
Only the Ryzen Threadripper PRO 3955WX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, AMD-V (Ryzen Threadripper PRO 3955WX) vs VT-x, VT-d (Xeon Gold 6338). Direct competitor: Ryzen Threadripper PRO 3955WX rivals Xeon Silver 4314; Xeon Gold 6338 rivals EPYC 7543.
| Feature | Ryzen Threadripper PRO 3955WX | Xeon Gold 6338 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d, AMD-V | VT-x, VT-d |
Value Analysis
The Ryzen Threadripper PRO 3955WX launched at $1149 MSRP, while the Xeon Gold 6338 debuted at $2990. At current prices ($1130 vs $1604), the Ryzen Threadripper PRO 3955WX is $474 cheaper. In terms of value (PassMark points per dollar), the Ryzen Threadripper PRO 3955WX delivers 35.3 pts/$ vs 25.1 pts/$ for the Xeon Gold 6338 — making the Ryzen Threadripper PRO 3955WX the 34% better value option.
| Feature | Ryzen Threadripper PRO 3955WX | Xeon Gold 6338 |
|---|---|---|
| MSRP | $1149-62% | $2990 |
| Avg Price (30d) | $1130-30% | $1604 |
| Performance per Dollar | 35.3+41% | 25.1 |
| Release Date | 2020 | 2021 |
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