Xeon Gold 6421N vs Ryzen Threadripper PRO 7955WX
Xeon Gold 6421N
Ryzen Threadripper PRO 7955WX
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 Xeon Gold 6421N
Performance Per Dollar Ryzen Threadripper PRO 7955WX
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Gold 6421N | Ryzen Threadripper PRO 7955WX |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($2,427) | ✅ More affordable ($1,836) |
| Longevity | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) | ✨ Modern (Storm Peak (2023) / 5 nm) |
💎 Value Proposition
| Insight | Xeon Gold 6421N | Ryzen Threadripper PRO 7955WX |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+35%) |
| Upfront Cost | ⚠️ Higher cost ($2,427) | ✅ More affordable ($1,836) |
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 Xeon Gold 6421N and Ryzen Threadripper PRO 7955WX
Xeon Gold 6421N
The Xeon Gold 6421N 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 1.8 GHz, with boost up to 3.6 GHz. L3 cache: 60 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 185 Watt. Memory support: DDR5-4400. Passmark benchmark score: 58,797 points. Launch price was $2,368.
Ryzen Threadripper PRO 7955WX
The Ryzen Threadripper PRO 7955WX is manufactured by AMD. It was released in 19 October 2023 (2 years ago). It is based on the Storm Peak (2023) architecture. It features 16 cores and 32 threads. Base frequency is 4.5 GHz, with boost up to 5.3 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: sTR5. Thermal design power (TDP): 350 Watt. Memory support: DDR5. Passmark benchmark score: 60,054 points. Launch price was $1,899.
Processing Power
The Xeon Gold 6421N packs 32 cores / 64 threads, while the Ryzen Threadripper PRO 7955WX offers 16 cores / 32 threads — the Xeon Gold 6421N has 16 more cores. Boost clocks reach 3.6 GHz on the Xeon Gold 6421N versus 5.3 GHz on the Ryzen Threadripper PRO 7955WX — a 38.2% clock advantage for the Ryzen Threadripper PRO 7955WX (base: 1.8 GHz vs 4.5 GHz). The Xeon Gold 6421N uses the Sapphire Rapids (2023−2024) architecture (Intel 7 nm), while the Ryzen Threadripper PRO 7955WX uses Storm Peak (2023) (5 nm). In PassMark, the Xeon Gold 6421N scores 58,797 against the Ryzen Threadripper PRO 7955WX's 60,054 — a 2.1% lead for the Ryzen Threadripper PRO 7955WX. L3 cache: 60 MB on the Xeon Gold 6421N vs 64 MB (total) on the Ryzen Threadripper PRO 7955WX.
| Feature | Xeon Gold 6421N | Ryzen Threadripper PRO 7955WX |
|---|---|---|
| Cores / Threads | 32 / 64+100% | 16 / 32 |
| Boost Clock | 3.6 GHz | 5.3 GHz+47% |
| Base Clock | 1.8 GHz | 4.5 GHz+150% |
| L3 Cache | 60 MB | 64 MB (total)+7% |
| L2 Cache | 2 MB (per core)+100% | 1 MB (per core) |
| Process | Intel 7 nm | 5 nm-29% |
| Architecture | Sapphire Rapids (2023−2024) | Storm Peak (2023) |
| PassMark | 58,797 | 60,054+2% |
| Cinebench R23 Multi | — | 36,742 |
| Geekbench 6 Single | — | 3,020 |
| Geekbench 6 Multi | — | 21,079 |
Memory & Platform
The Xeon Gold 6421N uses the LGA4677 socket (PCIe 5.0), while the Ryzen Threadripper PRO 7955WX uses sTR5 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Xeon Gold 6421N versus DDR5-5200 on the Ryzen Threadripper PRO 7955WX — the Xeon Gold 6421N supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6421N supports up to 4096 of RAM compared to 1024 GB — 120% more capacity for professional workloads. Both feature 8-channel memory with ECC support. PCIe lanes: 80 (Xeon Gold 6421N) vs 128 (Ryzen Threadripper PRO 7955WX) — the Ryzen Threadripper PRO 7955WX offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C741 (Xeon Gold 6421N) and WRX90,TRX50 (Ryzen Threadripper PRO 7955WX).
| Feature | Xeon Gold 6421N | Ryzen Threadripper PRO 7955WX |
|---|---|---|
| Socket | LGA4677 | sTR5 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | 4800+95900% | DDR5-5200 |
| Max RAM Capacity | 4096 | 1024 GB+26214300% |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 80 | 128+60% |
Advanced Features
Only the Ryzen Threadripper PRO 7955WX 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 (Xeon Gold 6421N) vs true (Ryzen Threadripper PRO 7955WX). Direct competitor: Xeon Gold 6421N rivals EPYC 9354; Ryzen Threadripper PRO 7955WX rivals Xeon w7-2495X.
| Feature | Xeon Gold 6421N | Ryzen Threadripper PRO 7955WX |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | true |
Value Analysis
The Xeon Gold 6421N launched at $2368 MSRP, while the Ryzen Threadripper PRO 7955WX debuted at $1899. At current prices ($2427 vs $1836), the Ryzen Threadripper PRO 7955WX is $591 cheaper. In terms of value (PassMark points per dollar), the Xeon Gold 6421N delivers 24.2 pts/$ vs 32.7 pts/$ for the Ryzen Threadripper PRO 7955WX — making the Ryzen Threadripper PRO 7955WX the 29.8% better value option.
| Feature | Xeon Gold 6421N | Ryzen Threadripper PRO 7955WX |
|---|---|---|
| MSRP | $2368 | $1899-20% |
| Avg Price (30d) | $2427 | $1836-24% |
| Performance per Dollar | 24.2 | 32.7+35% |
| Release Date | 2023 | 2023 |
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