EPYC 7443 vs Xeon w7-3455
EPYC 7443
Xeon w7-3455
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 EPYC 7443
Performance Per Dollar Xeon w7-3455
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 7443 | Xeon w7-3455 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($1,800) | ⚠️ Higher cost ($2,625) |
| Longevity | ✨ Modern (Milan (2021−2023) / 7 nm+) | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) |
💎 Value Proposition
| Insight | EPYC 7443 | Xeon w7-3455 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+51%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($1,800) | ⚠️ Higher cost ($2,625) |
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 EPYC 7443 and Xeon w7-3455
EPYC 7443
The EPYC 7443 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: 56,743 points. Launch price was $2,010.
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.
Processing Power
Both the EPYC 7443 and Xeon w7-3455 share an identical 24-core/48-thread configuration. Boost clocks reach 4 GHz on the EPYC 7443 versus 4.8 GHz on the Xeon w7-3455 — a 18.2% clock advantage for the Xeon w7-3455 (base: 2.85 GHz vs 2.5 GHz). The EPYC 7443 uses the Milan (2021−2023) architecture (7 nm+), while the Xeon w7-3455 uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the EPYC 7443 scores 56,743 against the Xeon w7-3455's 54,925 — a 3.3% lead for the EPYC 7443. L3 cache: 128 MB (total) on the EPYC 7443 vs 67.5 MB on the Xeon w7-3455.
| Feature | EPYC 7443 | Xeon w7-3455 |
|---|---|---|
| Cores / Threads | 24 / 48 | 24 / 48 |
| Boost Clock | 4 GHz | 4.8 GHz+20% |
| Base Clock | 2.85 GHz+14% | 2.5 GHz |
| L3 Cache | 128 MB (total)+90% | 67.5 MB |
| L2 Cache | 512 kB (per core) | 2 MB (per core)+300% |
| Process | 7 nm+ | Intel 7 nm |
| Architecture | Milan (2021−2023) | Sapphire Rapids (2023−2024) |
| PassMark | 56,743+3% | 54,925 |
| Geekbench 6 Single | — | 1,900 |
| Geekbench 6 Multi | — | 1,898 |
Memory & Platform
The EPYC 7443 uses the SP3 socket (PCIe 4.0), while the Xeon w7-3455 uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7443 versus DDR5-4800 on the Xeon w7-3455 — the EPYC 7443 supports 199.4% 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: 128 (EPYC 7443) vs 112 (Xeon w7-3455) — the EPYC 7443 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7443) and Intel W790 (Xeon w7-3455).
| Feature | EPYC 7443 | Xeon w7-3455 |
|---|---|---|
| Socket | SP3 | LGA4677 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | 3200+63900% | DDR5-4800 |
| Max RAM Capacity | 4096 | 4096 GB+104857500% |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128+14% | 112 |
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: VT-x, VT-d (EPYC 7443) vs true (Xeon w7-3455). Direct competitor: EPYC 7443 rivals Xeon Platinum 8362; Xeon w7-3455 rivals Threadripper PRO 7965WX.
| Feature | EPYC 7443 | Xeon w7-3455 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | Yes |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d | true |
Value Analysis
The EPYC 7443 launched at $2010 MSRP, while the Xeon w7-3455 debuted at $2489. At current prices ($1800 vs $2625), the EPYC 7443 is $825 cheaper. In terms of value (PassMark points per dollar), the EPYC 7443 delivers 31.5 pts/$ vs 20.9 pts/$ for the Xeon w7-3455 — making the EPYC 7443 the 40.4% better value option.
| Feature | EPYC 7443 | Xeon w7-3455 |
|---|---|---|
| MSRP | $2010-19% | $2489 |
| Avg Price (30d) | $1800-31% | $2625 |
| Performance per Dollar | 31.5+51% | 20.9 |
| Release Date | 2021 | 2023 |
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