CPU
GPU
Xeon w7-3455
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 w7-3455
Performance Per Dollar EPYC 7443P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon w7-3455 | EPYC 7443P |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($2,625) | ✅ More affordable ($1,045) |
| Longevity | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) | ✨ Modern (Milan (2021−2023) / 7 nm+) |
💎 Value Proposition
| Insight | Xeon w7-3455 | EPYC 7443P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+160%) |
| Upfront Cost | ⚠️ Higher cost ($2,625) | ✅ 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 w7-3455 and EPYC 7443P
Xeon w7-3455
The Xeon w7-3455 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 24 cores and 48 threads. Base frequency is 2.5 GHz, with boost up to 4.8 GHz. L3 cache: 67.5 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 270 Watt. Memory support: DDR5-4800. Passmark benchmark score: 54,925 points. Launch price was $2,489.
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
Both the Xeon w7-3455 and EPYC 7443P share an identical 24-core/48-thread configuration. Boost clocks reach 4.8 GHz on the Xeon w7-3455 versus 4 GHz on the EPYC 7443P — a 18.2% clock advantage for the Xeon w7-3455 (base: 2.5 GHz vs 2.85 GHz). The Xeon w7-3455 uses the Sapphire Rapids (2023−2024) architecture (Intel 7 nm), while the EPYC 7443P uses Milan (2021−2023) (7 nm+). In PassMark, the Xeon w7-3455 scores 54,925 against the EPYC 7443P's 56,808 — a 3.4% lead for the EPYC 7443P. L3 cache: 67.5 MB on the Xeon w7-3455 vs 128 MB (total) on the EPYC 7443P.
| Feature | Xeon w7-3455 | EPYC 7443P |
|---|---|---|
| Cores / Threads | 24 / 48 | 24 / 48 |
| Boost Clock | 4.8 GHz+20% | 4 GHz |
| Base Clock | 2.5 GHz | 2.85 GHz+14% |
| L3 Cache | 67.5 MB | 128 MB (total)+90% |
| L2 Cache | 2 MB (per core)+300% | 512 kB (per core) |
| Process | Intel 7 nm | 7 nm+ |
| Architecture | Sapphire Rapids (2023−2024) | Milan (2021−2023) |
| PassMark | 54,925 | 56,808+3% |
| Geekbench 6 Single | 1,900 | — |
| Geekbench 6 Multi | 1,898 | — |
Memory & Platform
The Xeon w7-3455 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 DDR5-4800 on the Xeon w7-3455 versus 3200 on the EPYC 7443P — the EPYC 7443P supports 199.4% 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: 112 (Xeon w7-3455) vs 128 (EPYC 7443P) — the EPYC 7443P offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel W790 (Xeon w7-3455) and SP3 (EPYC 7443P).
| Feature | Xeon w7-3455 | EPYC 7443P |
|---|---|---|
| Socket | LGA4677 | SP3 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-4800 | 3200+63900% |
| Max RAM Capacity | 4096 GB+104857500% | 4096 |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 112 | 128+14% |
Advanced Features
Only the Xeon w7-3455 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon w7-3455 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Xeon w7-3455) vs VT-x, VT-d (EPYC 7443P). Direct competitor: Xeon w7-3455 rivals Threadripper PRO 7965WX; EPYC 7443P rivals Xeon Platinum 8362.
| Feature | Xeon w7-3455 | EPYC 7443P |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | No |
| Virtualization | true | VT-x, VT-d |
Value Analysis
The Xeon w7-3455 launched at $2489 MSRP, while the EPYC 7443P debuted at $1337. At current prices ($2625 vs $1045), the EPYC 7443P is $1580 cheaper. In terms of value (PassMark points per dollar), the Xeon w7-3455 delivers 20.9 pts/$ vs 54.4 pts/$ for the EPYC 7443P — making the EPYC 7443P the 88.8% better value option.
| Feature | Xeon w7-3455 | EPYC 7443P |
|---|---|---|
| MSRP | $2489 | $1337-46% |
| Avg Price (30d) | $2625 | $1045-60% |
| Performance per Dollar | 20.9 | 54.4+160% |
| Release Date | 2023 | 2021 |
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