Xeon W-3365 vs Xeon Gold 5420+
Xeon W-3365
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 W-3365
Performance Per Dollar Xeon Gold 5420+
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon W-3365 | Xeon Gold 5420+ |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($3,499) | ✅ More affordable ($1,848) |
| Longevity | ✨ Modern (Ice Lake-W (2021) / 10 nm) | ✨ Modern (Sapphire Rapids (2023−2024) / 10 nm) |
💎 Value Proposition
| Insight | Xeon W-3365 | Xeon Gold 5420+ |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+92%) |
| Upfront Cost | ⚠️ Higher cost ($3,499) | ✅ 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 W-3365 and Xeon Gold 5420+
Xeon W-3365
The Xeon W-3365 is manufactured by Intel. It was released in 2021-07-29. It is based on the Ice Lake-W (2021) architecture. It features 32 cores and 64 threads. Base frequency is 2.7 GHz, with boost up to 4 GHz. L3 cache: 48 MB (total). L2 cache: 1 MB (per core). Built on 10 nm process technology. Socket: LGA4189. Thermal design power (TDP): 270 Watt. Memory support: DDR4-3200. Passmark benchmark score: 57,312 points. Launch price was $3,499.
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
The Xeon W-3365 packs 32 cores / 64 threads, while the Xeon Gold 5420+ offers 28 cores / 56 threads — the Xeon W-3365 has 4 more cores. Boost clocks reach 4 GHz on the Xeon W-3365 versus 4.1 GHz on the Xeon Gold 5420+ — a 2.5% clock advantage for the Xeon Gold 5420+ (base: 2.7 GHz vs 2 GHz). The Xeon W-3365 uses the Ice Lake-W (2021) architecture (10 nm), while the Xeon Gold 5420+ uses Sapphire Rapids (2023−2024) (10 nm). In PassMark, the Xeon W-3365 scores 57,312 against the Xeon Gold 5420+'s 58,209 — a 1.6% lead for the Xeon Gold 5420+. L3 cache: 48 MB (total) on the Xeon W-3365 vs 52.5 MB on the Xeon Gold 5420+.
| Feature | Xeon W-3365 | Xeon Gold 5420+ |
|---|---|---|
| Cores / Threads | 32 / 64+14% | 28 / 56 |
| Boost Clock | 4 GHz | 4.1 GHz+2% |
| Base Clock | 2.7 GHz+35% | 2 GHz |
| L3 Cache | 48 MB (total) | 52.5 MB+9% |
| L2 Cache | 1 MB (per core) | 2 MB (per core)+100% |
| Process | 10 nm | 10 nm |
| Architecture | Ice Lake-W (2021) | Sapphire Rapids (2023−2024) |
| PassMark | 57,312 | 58,209+2% |
| Geekbench 6 Single | 1,960 | — |
| Geekbench 6 Multi | 16,817 | — |
Memory & Platform
The Xeon W-3365 uses the LGA4189 socket (PCIe 5.0), while the Xeon Gold 5420+ uses LGA4677 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Xeon W-3365 versus 4800 on the Xeon Gold 5420+ — the Xeon Gold 5420+ supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 4096 GB of RAM. Both feature 8-channel memory with ECC support. PCIe lanes: 64 (Xeon W-3365) vs 80 (Xeon Gold 5420+) — the Xeon Gold 5420+ offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel C621A (Xeon W-3365) and C741 (Xeon Gold 5420+).
| Feature | Xeon W-3365 | Xeon Gold 5420+ |
|---|---|---|
| Socket | LGA4189 | LGA4677 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | 4800+119900% |
| Max RAM Capacity | 4096 GB+104857500% | 4096 |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 64 | 80+25% |
Advanced Features
Neither processor supports overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: true (Xeon W-3365) vs VT-x, VT-d (Xeon Gold 5420+). Direct competitor: Xeon W-3365 rivals EPYC 7543; Xeon Gold 5420+ rivals EPYC 9354.
| Feature | Xeon W-3365 | Xeon Gold 5420+ |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | Yes | Yes |
| Virtualization | true | VT-x, VT-d |
Value Analysis
The Xeon W-3365 launched at $3499 MSRP, while the Xeon Gold 5420+ debuted at $1848. At current prices ($3499 vs $1848), the Xeon Gold 5420+ is $1651 cheaper. In terms of value (PassMark points per dollar), the Xeon W-3365 delivers 16.4 pts/$ vs 31.5 pts/$ for the Xeon Gold 5420+ — making the Xeon Gold 5420+ the 63.2% better value option.
| Feature | Xeon W-3365 | Xeon Gold 5420+ |
|---|---|---|
| MSRP | $3499 | $1848-47% |
| Avg Price (30d) | $3499 | $1848-47% |
| Performance per Dollar | 16.4 | 31.5+92% |
| Release Date | 2021 | 2023 |
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