EPYC 7643P vs EPYC 9354

EPYC 7643P vs EPYC 9354 Performance Spectrum

EPYC 7643P

48 / 96

77,307

+4.6%

Ryzen AI Max PRO 390

Ryzen 9 9850HX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper PRO 9955WX

Ryzen Threadripper 9960X

Ryzen Threadripper 7970X

Ryzen Threadripper PRO 7985WX

Ryzen Threadripper 7980X

EPYC 9354

32 / 64

73,892

0.0%

Ryzen Threadripper PRO 5945WX

Ryzen Threadripper PRO 5955WX

Ryzen Threadripper PRO 9945WX

Ryzen Threadripper 3970X

Ryzen Threadripper 9960X

Ryzen Threadripper 7970X

Ryzen Threadripper 9970X

Ryzen Threadripper PRO 7985WX

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 7643P vs EPYC 9354 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.

EPYC 7643P vs EPYC 9354: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

EPYC 7643P

2023

Why buy it

✅+4.6% higher PassMark.
✅Costs $698 less on MSRP ($2,722 MSRP vs $3,420 MSRP).
✅Delivers 31.4% more PassMark for each dollar spent, at 28.4 vs 21.6 PassMark/$ ($2,722 MSRP vs $3,420 MSRP).
✅Draws 225W instead of 280W, a 55W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 9354 across 50 shared CPU benchmark tests.
❌Older platform position on SP3 with DDR4, while EPYC 9354 moves to SP5 and DDR5.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

EPYC 9354

2022

Why buy it

✅Better for gaming: +13.0% higher average FPS across 50 shared CPU benchmark tests.
✅Newer platform on SP5 with DDR5 support instead of SP3 and DDR4.
✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

❌Lower PassMark (73,892 vs 77,307).
❌Lower PassMark per dollar, at 21.6 vs 28.4 PassMark/$ ($3,420 MSRP vs $2,722 MSRP).
❌24.4% higher power demand at 280W vs 225W.

Quick Answers

So, is EPYC 7643P better than EPYC 9354?

It depends on what you want from the system. For gaming, EPYC 9354 is ahead with a 13.0% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, EPYC 7643P pulls ahead with 4.6% better PassMark.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, EPYC 7643P is the stronger fit. You are getting 4.6% better PassMark, backed by 48 cores and 96 threads.

Which one is the smarter buy today, not just the cheaper CPU?

EPYC 7643P is the better buy right now. EPYC 7643P comes in $698 cheaper on MSRP at $2,722 MSRP versus $3,420 MSRP, and it still gives you 4.6% better PassMark. The compromise is that EPYC 9354 is still the better pure gaming CPU with a 13.0% average FPS lead across 50 shared CPU game tests in our data. It is also 31.4% better value on MSRP (28.4 vs 21.6 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

Which one is more future-proof for 2026 and beyond?

EPYC 9354 makes more sense long term for 2026 and beyond. You are getting a healthier platform with SP5 and DDR5 instead of SP3 and AVX-512 support for heavier modern compute workloads. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 7643P vs EPYC 9354 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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 9354

The EPYC 9354 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: 73,892 points. Launch price was $3,420.

⚡

Processing Power

The EPYC 7643P packs 48 cores / 96 threads, while the EPYC 9354 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 9354 — a 5.4% clock advantage for the EPYC 9354 (base: 2.3 GHz vs 3.25 GHz). The EPYC 7643P uses the Milan (2021−2023) architecture (7 nm), while the EPYC 9354 uses Genoa (2022−2023) (5 nm, 6 nm). In PassMark, the EPYC 7643P scores 77,307 against the EPYC 9354's 73,892 — a 4.5% lead for the EPYC 7643P. Both processors carry 256 MB (total) of L3 cache.

Feature	EPYC 7643P	EPYC 9354
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+5%	73,892

🧠

Memory & Platform

The EPYC 7643P uses the SP3 socket (PCIe 4.0), while the EPYC 9354 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 9354 — the EPYC 9354 supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 9354 supports up to 6144 of RAM compared to 4096 — 50% more capacity for professional workloads. Memory channels: 8 (EPYC 7643P) vs 12 (EPYC 9354). Both provide 128 PCIe lanes. Chipset compatibility: SP3 (EPYC 7643P) and SP5 (EPYC 9354).

Feature	EPYC 7643P	EPYC 9354
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	Yes	Yes
PCIe Lanes	128	128

🔧

Advanced Features

Neither processor supports overclocking. Only the EPYC 9354 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 9354). Direct competitor: EPYC 7643P rivals Xeon Platinum 8380; EPYC 9354 rivals Xeon Platinum 8468.

Feature	EPYC 7643P	EPYC 9354
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

At launch, the EPYC 7643P was priced at $2722, while the EPYC 9354 came in at $3420. On launch pricing ($2722 vs $3420), EPYC 7643P was $698 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7643P delivers 28.4 pts/$ vs 21.6 pts/$ for the EPYC 9354 — making the EPYC 7643P the 27.2% better value option.

Feature	EPYC 7643P	EPYC 9354
MSRP	$2722-20%	$3420
Performance per Dollar	28.4+31%	21.6
Release Date	2023	2022

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