EPYC 7643P vs EPYC 9354P
EPYC 7643P
EPYC 9354P
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 7643P
Performance Per Dollar EPYC 9354P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 7643P | EPYC 9354P |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($2,722) | ✅ More affordable ($2,205) |
| Longevity | ✨ Modern (Milan (2021−2023) / 7 nm) | ✨ Modern (Genoa (2022−2023) / 5 nm, 6 nm) |
💎 Value Proposition
| Insight | EPYC 7643P | EPYC 9354P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+19%) |
| Upfront Cost | ⚠️ Higher cost ($2,722) | ✅ More affordable ($2,205) |
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 7643P and EPYC 9354P
EPYC 7643P
The EPYC 7643P is manufactured by AMD. It was released in 5 September 2023 (2 years ago). It is based on the Milan (2021−2023) architecture. It features 48 cores and 96 threads. Base frequency is 2.3 GHz, with boost up to 3.6 GHz. L3 cache: 256 MB (total). L2 cache: 512 kB (per core). Built on 7 nm process technology. Socket: SP3. Thermal design power (TDP): 225 Watt. Memory support: DDR4. Passmark benchmark score: 77,307 points. Launch price was $2,722.
EPYC 9354P
The EPYC 9354P is manufactured by AMD. It was released in 10 November 2022 (3 years ago). It is based on the Genoa (2022−2023) architecture. It features 32 cores and 64 threads. Base frequency is 3.25 GHz, with boost up to 3.8 GHz. L3 cache: 256 MB (total). L2 cache: 1 MB (per core). Built on 5 nm, 6 nm process technology. Socket: SP5. Thermal design power (TDP): 280 Watt. Memory support: DDR5-4800. Passmark benchmark score: 74,808 points. Launch price was $2,730.
Processing Power
The EPYC 7643P packs 48 cores / 96 threads, while the EPYC 9354P offers 32 cores / 64 threads — the EPYC 7643P has 16 more cores. Boost clocks reach 3.6 GHz on the EPYC 7643P versus 3.8 GHz on the EPYC 9354P — a 5.4% clock advantage for the EPYC 9354P (base: 2.3 GHz vs 3.25 GHz). The EPYC 7643P uses the Milan (2021−2023) architecture (7 nm), while the EPYC 9354P uses Genoa (2022−2023) (5 nm, 6 nm). In PassMark, the EPYC 7643P scores 77,307 against the EPYC 9354P's 74,808 — a 3.3% lead for the EPYC 7643P. Both processors carry 256 MB (total) of L3 cache.
| Feature | EPYC 7643P | EPYC 9354P |
|---|---|---|
| Cores / Threads | 48 / 96+50% | 32 / 64 |
| Boost Clock | 3.6 GHz | 3.8 GHz+6% |
| Base Clock | 2.3 GHz | 3.25 GHz+41% |
| L3 Cache | 256 MB (total) | 256 MB (total) |
| L2 Cache | 512 kB (per core) | 1 MB (per core)+100% |
| Process | 7 nm | 5 nm, 6 nm-29% |
| Architecture | Milan (2021−2023) | Genoa (2022−2023) |
| PassMark | 77,307+3% | 74,808 |
Memory & Platform
The EPYC 7643P uses the SP3 socket (PCIe 4.0), while the EPYC 9354P uses SP5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7643P versus 4800 on the EPYC 9354P — the EPYC 9354P supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 9354P supports up to 6144 of RAM compared to 4096 — 40% more capacity for professional workloads. Memory channels: 8 (EPYC 7643P) vs 12 (EPYC 9354P). Both provide 128 PCIe lanes. Chipset compatibility: SP3 (EPYC 7643P) and SP5 (EPYC 9354P).
| Feature | EPYC 7643P | EPYC 9354P |
|---|---|---|
| Socket | SP3 | SP5 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | 3200 | 4800+50% |
| Max RAM Capacity | 4096 | 6144+50% |
| RAM Channels | 8 | 12+50% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128 | 128 |
Advanced Features
Neither processor supports overclocking. Only the EPYC 9354P supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d, SEV (EPYC 7643P) vs VT-x, VT-d, SEV-SNP (EPYC 9354P). Direct competitor: EPYC 7643P rivals Xeon Platinum 8380; EPYC 9354P rivals Xeon Platinum 8468.
| Feature | EPYC 7643P | EPYC 9354P |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d, SEV | VT-x, VT-d, SEV-SNP |
Value Analysis
The EPYC 7643P launched at $2722 MSRP, while the EPYC 9354P debuted at $2730. At current prices ($2722 vs $2205), the EPYC 9354P is $517 cheaper. In terms of value (PassMark points per dollar), the EPYC 7643P delivers 28.4 pts/$ vs 33.9 pts/$ for the EPYC 9354P — making the EPYC 9354P the 17.7% better value option.
| Feature | EPYC 7643P | EPYC 9354P |
|---|---|---|
| MSRP | $2722 | $2730 |
| Avg Price (30d) | $2722 | $2205-19% |
| Performance per Dollar | 28.4 | 33.9+19% |
| Release Date | 2023 | 2022 |
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