EPYC 7643
EPYC 9354P
EPYC 7643 vs EPYC 9354P Performance Spectrum
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.
EPYC 7643 vs EPYC 9354P FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
EPYC 7643 vs EPYC 9354P: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
EPYC 7643
2021Why buy it
- ✅+1.7% higher PassMark.
- ✅Draws 225W instead of 280W, a 55W reduction.
Trade-offs
- ❌Worse for gaming: lower average FPS than EPYC 9354P across 50 shared CPU benchmark tests.
- ❌Lower PassMark per dollar, at 15.2 vs 27.4 PassMark/$ ($4,995 MSRP vs $2,730 MSRP).
- ❌Older platform position on SP3 with DDR4, while EPYC 9354P moves to SP5 and DDR5.
EPYC 9354P
2022Why buy it
- ✅Better for gaming: +13.1% higher average FPS across 50 shared CPU benchmark tests.
- ✅Costs $2,265 less on MSRP ($2,730 MSRP vs $4,995 MSRP).
- ✅Delivers 80.0% more PassMark for each dollar spent, at 27.4 vs 15.2 PassMark/$ ($2,730 MSRP vs $4,995 MSRP).
- ✅Newer platform on SP5 with DDR5 support instead of SP3 and DDR4.
Trade-offs
- ❌Lower PassMark (74,808 vs 76,050).
- ❌24.4% higher power demand at 280W vs 225W.
Quick Answers
So, is EPYC 9354P better than EPYC 7643?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
EPYC 7643 vs EPYC 9354P Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
EPYC 7643
The EPYC 7643 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 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: DDR4-3200. Passmark benchmark score: 76,050 points. Launch price was $4,995.
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 7643 packs 48 cores / 96 threads, while the EPYC 9354P offers 32 cores / 64 threads — the EPYC 7643 has 16 more cores. Boost clocks reach 3.6 GHz on the EPYC 7643 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 7643 uses the Milan (2021−2023) architecture (7 nm+), while the EPYC 9354P uses Genoa (2022−2023) (5 nm, 6 nm). In PassMark, the EPYC 7643 scores 76,050 against the EPYC 9354P's 74,808 — a 1.6% lead for the EPYC 7643. Both processors carry 256 MB (total) of L3 cache.
| Feature | EPYC 7643 | 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 | 76,050+2% | 74,808 |
| Geekbench 6 Single | 1,671 | — |
| Geekbench 6 Multi | 15,000 | — |
Memory & Platform
The EPYC 7643 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 DDR4-3200 on the EPYC 7643 versus 4800 on the EPYC 9354P — the EPYC 9354P supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 9354P supports up to 6144 TB of RAM compared to 4 TB — 153500% more capacity for professional workloads. Memory channels: 8 (EPYC 7643) vs 12 (EPYC 9354P). Both provide 128 PCIe lanes. Chipset compatibility: SP3 (EPYC 7643) and SP5 (EPYC 9354P).
| Feature | EPYC 7643 | EPYC 9354P |
|---|---|---|
| Socket | SP3 | SP5 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | DDR4-3200 | 4800+50% |
| Max RAM Capacity | 4 TB | 6144 TB+153500% |
| RAM Channels | 8 | 12+50% |
| ECC Support | Yes | Yes |
| 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: AMD-V (EPYC 7643) vs VT-x, VT-d, SEV-SNP (EPYC 9354P). Primary use case: EPYC 7643 targets Server. Direct competitor: EPYC 7643 rivals EPYC 7443P; EPYC 9354P rivals Xeon Platinum 8468.
| Feature | EPYC 7643 | EPYC 9354P |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | No | Yes |
| Virtualization | AMD-V | VT-x, VT-d, SEV-SNP |
| Target Use | Server | — |
Value Analysis
At launch, the EPYC 7643 was priced at $4995, while the EPYC 9354P came in at $2730. On launch pricing ($4995 vs $2730), EPYC 9354P was $2265 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7643 delivers 15.2 pts/$ vs 27.4 pts/$ for the EPYC 9354P — making the EPYC 9354P the 57.1% better value option.
| Feature | EPYC 7643 | EPYC 9354P |
|---|---|---|
| MSRP | $4995 | $2730-45% |
| Performance per Dollar | 15.2 | 27.4+80% |
| Release Date | 2021 | 2022 |
Affiliate Disclosure
ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.
Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on EPYC 7643 and EPYC 9354P
