Xeon Gold 6423N vs EPYC 7443P
Xeon Gold 6423N
EPYC 7443P
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 6423N
Performance Per Dollar EPYC 7443P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Gold 6423N | EPYC 7443P |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($2,161) | ✅ More affordable ($1,045) |
| Longevity | ✨ Modern (Legacy / Intel 7 nm) | ✨ Modern (Milan (2021−2023) / 7 nm+) |
💎 Value Proposition
| Insight | Xeon Gold 6423N | EPYC 7443P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+105%) |
| Upfront Cost | ⚠️ Higher cost ($2,161) | ✅ More affordable ($1,045) |
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 6423N and EPYC 7443P
Xeon Gold 6423N
The Xeon Gold 6423N is manufactured by Intel. It was released in 2023-07-01. It features 28 cores and 56 threads. Base frequency is 2 GHz, with boost up to 3.6 GHz. L3 cache: 52.5 MB. Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 195 Watt. Memory support: DDR5-4400. Passmark benchmark score: 57,434 points. Launch price was $2,161.
EPYC 7443P
The EPYC 7443P is manufactured by AMD. It was released in 15 March 2021 (4 years ago). It is based on the Milan (2021−2023) architecture. It features 24 cores and 48 threads. Base frequency is 2.85 GHz, with boost up to 4 GHz. L3 cache: 128 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 200 Watt. Memory support: DDR4-3200. Passmark benchmark score: 56,808 points. Launch price was $1,337.
Processing Power
The Xeon Gold 6423N packs 28 cores / 56 threads, while the EPYC 7443P offers 24 cores / 48 threads — the Xeon Gold 6423N has 4 more cores. Boost clocks reach 3.6 GHz on the Xeon Gold 6423N versus 4 GHz on the EPYC 7443P — a 10.5% clock advantage for the EPYC 7443P (base: 2 GHz vs 2.85 GHz). The EPYC 7443P is built on the Milan (2021−2023) architecture. In PassMark, the Xeon Gold 6423N scores 57,434 against the EPYC 7443P's 56,808 — a 1.1% lead for the Xeon Gold 6423N. L3 cache: 52.5 MB on the Xeon Gold 6423N vs 128 MB (total) on the EPYC 7443P.
| Feature | Xeon Gold 6423N | EPYC 7443P |
|---|---|---|
| Cores / Threads | 28 / 56+17% | 24 / 48 |
| Boost Clock | 3.6 GHz | 4 GHz+11% |
| Base Clock | 2 GHz | 2.85 GHz+43% |
| L3 Cache | 52.5 MB | 128 MB (total)+144% |
| L2 Cache | — | 512 kB (per core) |
| Process | Intel 7 nm | 7 nm+ |
| Architecture | — | Milan (2021−2023) |
| PassMark | 57,434+1% | 56,808 |
Memory & Platform
The Xeon Gold 6423N uses the LGA4677 socket (PCIe 5.0), while the EPYC 7443P uses SP3 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Xeon Gold 6423N versus 3200 on the EPYC 7443P — the Xeon Gold 6423N supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 4096 of RAM. Both feature 8-channel memory with ECC support. PCIe lanes: 80 (Xeon Gold 6423N) vs 128 (EPYC 7443P) — the EPYC 7443P offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C741 (Xeon Gold 6423N) and SP3 (EPYC 7443P).
| Feature | Xeon Gold 6423N | EPYC 7443P |
|---|---|---|
| Socket | LGA4677 | SP3 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | 4800+50% | 3200 |
| Max RAM Capacity | 4096 | 4096 |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 80 | 128+60% |
Advanced Features
Neither processor supports overclocking. Only the Xeon Gold 6423N supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. Direct competitor: Xeon Gold 6423N rivals EPYC 9354; EPYC 7443P rivals Xeon Platinum 8362.
| Feature | Xeon Gold 6423N | EPYC 7443P |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | Yes | No |
| Virtualization | VT-x, VT-d | VT-x, VT-d |
Value Analysis
The Xeon Gold 6423N launched at $2161 MSRP, while the EPYC 7443P debuted at $1337. At current prices ($2161 vs $1045), the EPYC 7443P is $1116 cheaper. In terms of value (PassMark points per dollar), the Xeon Gold 6423N delivers 26.6 pts/$ vs 54.4 pts/$ for the EPYC 7443P — making the EPYC 7443P the 68.7% better value option.
| Feature | Xeon Gold 6423N | EPYC 7443P |
|---|---|---|
| MSRP | $2161 | $1337-38% |
| Avg Price (30d) | $2161 | $1045-52% |
| Performance per Dollar | 26.6 | 54.4+105% |
| Release Date | 2023 | 2021 |
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