CPU
GPU
Xeon w5-2455X
EPYC 7551P
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 w5-2455X
Performance Per Dollar EPYC 7551P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon w5-2455X | EPYC 7551P |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($1,049) | ✅ More affordable ($329) |
| Longevity | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) | ✨ Modern (Naples (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Xeon w5-2455X | EPYC 7551P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+227%) |
| Upfront Cost | ⚠️ Higher cost ($1,049) | ✅ More affordable ($329) |
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 w5-2455X and EPYC 7551P
Xeon w5-2455X
The Xeon w5-2455X is manufactured by Intel. It was released in 15 February 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 12 cores and 24 threads. Base frequency is 3.2 GHz, with boost up to 4.6 GHz. L3 cache: 30 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 200 Watt. Memory support: DDR5-4800. Passmark benchmark score: 37,109 points. Launch price was $1,039.
EPYC 7551P
The EPYC 7551P is manufactured by AMD. It was released in 29 June 2017 (8 years ago). It is based on the Naples (2017−2018) architecture. It features 32 cores and 64 threads. Base frequency is 2 GHz, with boost up to 3 GHz. L3 cache: 64 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: TR4. Thermal design power (TDP): 180 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 38,111 points. Launch price was $2,100.
Processing Power
The Xeon w5-2455X packs 12 cores / 24 threads, while the EPYC 7551P offers 32 cores / 64 threads — the EPYC 7551P has 20 more cores. Boost clocks reach 4.6 GHz on the Xeon w5-2455X versus 3 GHz on the EPYC 7551P — a 42.1% clock advantage for the Xeon w5-2455X (base: 3.2 GHz vs 2 GHz). The Xeon w5-2455X uses the Sapphire Rapids (2023−2024) architecture (Intel 7 nm), while the EPYC 7551P uses Naples (2017−2018) (14 nm). In PassMark, the Xeon w5-2455X scores 37,109 against the EPYC 7551P's 38,111 — a 2.7% lead for the EPYC 7551P. L3 cache: 30 MB on the Xeon w5-2455X vs 64 MB (total) on the EPYC 7551P.
| Feature | Xeon w5-2455X | EPYC 7551P |
|---|---|---|
| Cores / Threads | 12 / 24 | 32 / 64+167% |
| Boost Clock | 4.6 GHz+53% | 3 GHz |
| Base Clock | 3.2 GHz+60% | 2 GHz |
| L3 Cache | 30 MB | 64 MB (total)+113% |
| L2 Cache | 2 MB (per core)+300% | 512K (per core) |
| Process | Intel 7 nm-50% | 14 nm |
| Architecture | Sapphire Rapids (2023−2024) | Naples (2017−2018) |
| PassMark | 37,109 | 38,111+3% |
Memory & Platform
The Xeon w5-2455X uses the LGA4677 socket (PCIe 4.0), while the EPYC 7551P uses TR4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Xeon w5-2455X versus 2666 on the EPYC 7551P — the Xeon w5-2455X supports 57.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 2048 of RAM. Memory channels: 4 (Xeon w5-2455X) vs 8 (EPYC 7551P). PCIe lanes: 64 (Xeon w5-2455X) vs 128 (EPYC 7551P) — the EPYC 7551P offers 64 more lanes for additional GPUs or NVMe drives. Chipset compatibility: W790 (Xeon w5-2455X) and SP3 (EPYC 7551P).
| Feature | Xeon w5-2455X | EPYC 7551P |
|---|---|---|
| Socket | LGA4677 | TR4 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 4800+80% | 2666 |
| Max RAM Capacity | 2048 | 2048 |
| RAM Channels | 4 | 8+100% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 64 | 128+100% |
Advanced Features
Only the Xeon w5-2455X 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 w5-2455X) vs AMD-V, IOMMU (EPYC 7551P). Direct competitor: Xeon w5-2455X rivals Threadripper 7960X; EPYC 7551P rivals Xeon Platinum 8160.
| Feature | Xeon w5-2455X | EPYC 7551P |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | AMD-V, IOMMU |
Value Analysis
The Xeon w5-2455X launched at $1039 MSRP, while the EPYC 7551P debuted at $2100. At current prices ($1049 vs $329), the EPYC 7551P is $720 cheaper. In terms of value (PassMark points per dollar), the Xeon w5-2455X delivers 35.4 pts/$ vs 115.8 pts/$ for the EPYC 7551P — making the EPYC 7551P the 106.4% better value option.
| Feature | Xeon w5-2455X | EPYC 7551P |
|---|---|---|
| MSRP | $1039-51% | $2100 |
| Avg Price (30d) | $1049 | $329-69% |
| Performance per Dollar | 35.4 | 115.8+227% |
| Release Date | 2023 | 2017 |
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