Ryzen Threadripper PRO 3975WX vs Xeon Gold 6438Y+
Ryzen Threadripper PRO 3975WX
Xeon Gold 6438Y+
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 3975WX
Performance Per Dollar Xeon Gold 6438Y+
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen Threadripper PRO 3975WX | Xeon Gold 6438Y+ |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($368) | ⚠️ Higher cost ($389) |
| Longevity | ✨ Modern (Matisse (2019−2020) / 7 nm, 12 nm) | ✨ Modern (Sapphire Rapids (2023−2024) / 10 nm) |
💎 Value Proposition
| Insight | Ryzen Threadripper PRO 3975WX | Xeon Gold 6438Y+ |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+5%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($368) | ⚠️ Higher cost ($389) |
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 3975WX and Xeon Gold 6438Y+
Ryzen Threadripper PRO 3975WX
The Ryzen Threadripper PRO 3975WX is manufactured by AMD. It was released in 2020-07-14. It is based on the Matisse (2019−2020) architecture. It features 32 cores and 64 threads. Base frequency is 3.5 GHz, with boost up to 4.2 GHz. L3 cache: 128 MB. L2 cache: 512K (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: 62,261 points. Launch price was $4,499.
Xeon Gold 6438Y+
The Xeon Gold 6438Y+ is manufactured by Intel. It was released in 10 January 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 32 cores and 64 threads. Base frequency is 2 GHz, with boost up to 4 GHz. L3 cache: 60 MB. L2 cache: 2 MB (per core). Built on 10 nm process technology. Socket: LGA4677. Thermal design power (TDP): 205 Watt. Memory support: DDR5-4800. Passmark benchmark score: 62,660 points. Launch price was $3,141.
Processing Power
Both the Ryzen Threadripper PRO 3975WX and Xeon Gold 6438Y+ share an identical 32-core/64-thread configuration. Boost clocks reach 4.2 GHz on the Ryzen Threadripper PRO 3975WX versus 4 GHz on the Xeon Gold 6438Y+ — a 4.9% clock advantage for the Ryzen Threadripper PRO 3975WX (base: 3.5 GHz vs 2 GHz). The Ryzen Threadripper PRO 3975WX uses the Matisse (2019−2020) architecture (7 nm, 12 nm), while the Xeon Gold 6438Y+ uses Sapphire Rapids (2023−2024) (10 nm). In PassMark, the Ryzen Threadripper PRO 3975WX scores 62,261 against the Xeon Gold 6438Y+'s 62,660 — a 0.6% lead for the Xeon Gold 6438Y+. L3 cache: 128 MB on the Ryzen Threadripper PRO 3975WX vs 60 MB on the Xeon Gold 6438Y+.
| Feature | Ryzen Threadripper PRO 3975WX | Xeon Gold 6438Y+ |
|---|---|---|
| Cores / Threads | 32 / 64 | 32 / 64 |
| Boost Clock | 4.2 GHz+5% | 4 GHz |
| Base Clock | 3.5 GHz+75% | 2 GHz |
| L3 Cache | 128 MB+113% | 60 MB |
| L2 Cache | 512K (per core) | 2 MB (per core)+300% |
| Process | 7 nm, 12 nm-30% | 10 nm |
| Architecture | Matisse (2019−2020) | Sapphire Rapids (2023−2024) |
| PassMark | 62,261 | 62,660 |
| Cinebench R23 Multi | 42,986 | — |
| Geekbench 6 Single | 1,260 | — |
| Geekbench 6 Multi | 25,211 | — |
Memory & Platform
The Ryzen Threadripper PRO 3975WX uses the sWRX8 socket (PCIe 4.0), while the Xeon Gold 6438Y+ uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen Threadripper PRO 3975WX versus 4800 on the Xeon Gold 6438Y+ — the Xeon Gold 6438Y+ supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6438Y+ supports up to 4096 of RAM compared to 2048 GB — 66.7% more capacity for professional workloads. Both feature 8-channel memory with ECC support. PCIe lanes: 128 (Ryzen Threadripper PRO 3975WX) vs 80 (Xeon Gold 6438Y+) — the Ryzen Threadripper PRO 3975WX offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD WRX80 (Ryzen Threadripper PRO 3975WX) and C741 (Xeon Gold 6438Y+).
| Feature | Ryzen Threadripper PRO 3975WX | Xeon Gold 6438Y+ |
|---|---|---|
| Socket | sWRX8 | LGA4677 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | DDR4-3200 | 4800+119900% |
| Max RAM Capacity | 2048 GB+52428700% | 4096 |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128+60% | 80 |
Advanced Features
Only the Ryzen Threadripper PRO 3975WX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon Gold 6438Y+ supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Ryzen Threadripper PRO 3975WX) vs VT-x, VT-d (Xeon Gold 6438Y+). Direct competitor: Ryzen Threadripper PRO 3975WX rivals Xeon W-3375; Xeon Gold 6438Y+ rivals EPYC 9354.
| Feature | Ryzen Threadripper PRO 3975WX | Xeon Gold 6438Y+ |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | true | VT-x, VT-d |
Value Analysis
The Ryzen Threadripper PRO 3975WX launched at $1337 MSRP, while the Xeon Gold 6438Y+ debuted at $2607. At current prices ($368 vs $389), the Ryzen Threadripper PRO 3975WX is $21 cheaper. In terms of value (PassMark points per dollar), the Ryzen Threadripper PRO 3975WX delivers 169.2 pts/$ vs 161.1 pts/$ for the Xeon Gold 6438Y+ — making the Ryzen Threadripper PRO 3975WX the 4.9% better value option.
| Feature | Ryzen Threadripper PRO 3975WX | Xeon Gold 6438Y+ |
|---|---|---|
| MSRP | $1337-49% | $2607 |
| Avg Price (30d) | $368-5% | $389 |
| Performance per Dollar | 169.2+5% | 161.1 |
| Release Date | 2020 | 2023 |
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