Xeon Gold 6423N vs Xeon Gold 5420+
Xeon Gold 6423N
Xeon Gold 5420+
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 Xeon Gold 5420+
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Gold 6423N | Xeon Gold 5420+ |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($2,161) | ✅ More affordable ($1,848) |
| Longevity | ✨ Modern (Legacy / Intel 7 nm) | ✨ Modern (Sapphire Rapids (2023−2024) / 10 nm) |
💎 Value Proposition
| Insight | Xeon Gold 6423N | Xeon Gold 5420+ |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+19%) |
| Upfront Cost | ⚠️ Higher cost ($2,161) | ✅ More affordable ($1,848) |
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 Xeon Gold 5420+
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.
Xeon Gold 5420+
The Xeon Gold 5420+ 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 28 cores and 56 threads. Base frequency is 2 GHz, with boost up to 4.1 GHz. L3 cache: 52.5 MB. L2 cache: 2 MB (per core). Built on 10 nm process technology. Socket: LGA4677. Thermal design power (TDP): 205 Watt. Memory support: DDR5-4400. Passmark benchmark score: 58,209 points. Launch price was $1,848.
Processing Power
Both the Xeon Gold 6423N and Xeon Gold 5420+ share an identical 28-core/56-thread configuration. Boost clocks reach 3.6 GHz on the Xeon Gold 6423N versus 4.1 GHz on the Xeon Gold 5420+ — a 13% clock advantage for the Xeon Gold 5420+ (base: 2 GHz vs 2 GHz). The Xeon Gold 5420+ is built on the Sapphire Rapids (2023−2024) architecture. In PassMark, the Xeon Gold 6423N scores 57,434 against the Xeon Gold 5420+'s 58,209 — a 1.3% lead for the Xeon Gold 5420+. Both processors carry 52.5 MB of L3 cache.
| Feature | Xeon Gold 6423N | Xeon Gold 5420+ |
|---|---|---|
| Cores / Threads | 28 / 56 | 28 / 56 |
| Boost Clock | 3.6 GHz | 4.1 GHz+14% |
| Base Clock | 2 GHz | 2 GHz |
| L3 Cache | 52.5 MB | 52.5 MB |
| L2 Cache | — | 2 MB (per core) |
| Process | Intel 7 nm-30% | 10 nm |
| Architecture | — | Sapphire Rapids (2023−2024) |
| PassMark | 57,434 | 58,209+1% |
Memory & Platform
Both processors use the LGA4677 socket with PCIe 5.0. Both support up to 4800 memory speed. Both support up to 4096 of RAM. Both feature 8-channel memory with ECC support. Both provide 80 PCIe lanes. Chipset compatibility: C741 (Xeon Gold 6423N) and C741 (Xeon Gold 5420+).
| Feature | Xeon Gold 6423N | Xeon Gold 5420+ |
|---|---|---|
| Socket | LGA4677 | LGA4677 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | 4800 | 4800 |
| Max RAM Capacity | 4096 | 4096 |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 80 | 80 |
Advanced Features
Neither processor supports overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Both support VT-x, VT-d virtualization. Direct competitor: Xeon Gold 6423N rivals EPYC 9354; Xeon Gold 5420+ rivals EPYC 9354.
| Feature | Xeon Gold 6423N | Xeon Gold 5420+ |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | VT-x, VT-d |
Value Analysis
The Xeon Gold 6423N launched at $2161 MSRP, while the Xeon Gold 5420+ debuted at $1848. At current prices ($2161 vs $1848), the Xeon Gold 5420+ is $313 cheaper. In terms of value (PassMark points per dollar), the Xeon Gold 6423N delivers 26.6 pts/$ vs 31.5 pts/$ for the Xeon Gold 5420+ — making the Xeon Gold 5420+ the 16.9% better value option.
| Feature | Xeon Gold 6423N | Xeon Gold 5420+ |
|---|---|---|
| MSRP | $2161 | $1848-14% |
| Avg Price (30d) | $2161 | $1848-14% |
| Performance per Dollar | 26.6 | 31.5+18% |
| Release Date | 2023 | 2023 |
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