Xeon Gold 6421N vs EPYC 4584PX
Xeon Gold 6421N
EPYC 4584PX
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 EPYC 4584PX
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Gold 6421N | EPYC 4584PX |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($2,427) | ✅ More affordable ($1,517) |
| Longevity | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) | ✨ Modern (Raphael (2023−2025) / 5 nm) |
💎 Value Proposition
| Insight | Xeon Gold 6421N | EPYC 4584PX |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+64%) |
| Upfront Cost | ⚠️ Higher cost ($2,427) | ✅ More affordable ($1,517) |
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 EPYC 4584PX
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.
EPYC 4584PX
The EPYC 4584PX is manufactured by AMD. It was released in 21 May 2024 (1 year ago). It is based on the Raphael (2023−2025) architecture. It features 16 cores and 32 threads. Base frequency is 4.2 GHz, with boost up to 5.7 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5. Passmark benchmark score: 60,169 points. Launch price was $699.
Processing Power
The Xeon Gold 6421N packs 32 cores / 64 threads, while the EPYC 4584PX 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 5.7 GHz on the EPYC 4584PX — a 45.2% clock advantage for the EPYC 4584PX (base: 1.8 GHz vs 4.2 GHz). The Xeon Gold 6421N uses the Sapphire Rapids (2023−2024) architecture (Intel 7 nm), while the EPYC 4584PX uses Raphael (2023−2025) (5 nm). In PassMark, the Xeon Gold 6421N scores 58,797 against the EPYC 4584PX's 60,169 — a 2.3% lead for the EPYC 4584PX. L3 cache: 60 MB on the Xeon Gold 6421N vs 128 MB (total) on the EPYC 4584PX.
| Feature | Xeon Gold 6421N | EPYC 4584PX |
|---|---|---|
| Cores / Threads | 32 / 64+100% | 16 / 32 |
| Boost Clock | 3.6 GHz | 5.7 GHz+58% |
| Base Clock | 1.8 GHz | 4.2 GHz+133% |
| L3 Cache | 60 MB | 128 MB (total)+113% |
| L2 Cache | 2 MB (per core)+100% | 1 MB (per core) |
| Process | Intel 7 nm | 5 nm-29% |
| Architecture | Sapphire Rapids (2023−2024) | Raphael (2023−2025) |
| PassMark | 58,797 | 60,169+2% |
Memory & Platform
The Xeon Gold 6421N uses the LGA4677 socket (PCIe 5.0), while the EPYC 4584PX uses AM5 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Xeon Gold 6421N versus 5200 on the EPYC 4584PX — the EPYC 4584PX supports 8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6421N supports up to 4096 of RAM compared to 256 — 176.5% more capacity for professional workloads. Memory channels: 8 (Xeon Gold 6421N) vs 2 (EPYC 4584PX). PCIe lanes: 80 (Xeon Gold 6421N) vs 28 (EPYC 4584PX) — the Xeon Gold 6421N offers 52 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C741 (Xeon Gold 6421N) and AM5 (EPYC 4584PX).
| Feature | Xeon Gold 6421N | EPYC 4584PX |
|---|---|---|
| Socket | LGA4677 | AM5 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | 4800 | 5200+8% |
| Max RAM Capacity | 4096+1500% | 256 |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 80+186% | 28 |
Advanced Features
Only the EPYC 4584PX 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 VT-x, VT-d, AMD-V (EPYC 4584PX). The EPYC 4584PX includes integrated graphics (AMD Radeon Graphics), while the Xeon Gold 6421N requires a dedicated GPU. Direct competitor: Xeon Gold 6421N rivals EPYC 9354; EPYC 4584PX rivals Ryzen 9 7950X.
| Feature | Xeon Gold 6421N | EPYC 4584PX |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | AMD Radeon Graphics |
| Unlocked | No | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | VT-x, VT-d, AMD-V |
Value Analysis
The Xeon Gold 6421N launched at $2368 MSRP, while the EPYC 4584PX debuted at $1517. At current prices ($2427 vs $1517), the EPYC 4584PX is $910 cheaper. In terms of value (PassMark points per dollar), the Xeon Gold 6421N delivers 24.2 pts/$ vs 39.7 pts/$ for the EPYC 4584PX — making the EPYC 4584PX the 48.3% better value option.
| Feature | Xeon Gold 6421N | EPYC 4584PX |
|---|---|---|
| MSRP | $2368 | $1517-36% |
| Avg Price (30d) | $2427 | $1517-37% |
| Performance per Dollar | 24.2 | 39.7+64% |
| Release Date | 2023 | 2024 |
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