EPYC 7351 vs Ryzen 7 7840S

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 7351 vs Ryzen 7 7840S 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 7351 vs Ryzen 7 7840S: Pros, Cons & Final Verdict

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

EPYC 7351

2017

Why buy it

✅+300% larger total L3 cache (64 MB vs 16 MB).
✅Better for workstations and heavier parallel workloads: 16 cores / 32 threads.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7840S across 50 shared CPU benchmark tests.
❌Lower PassMark (23,226 vs 23,290).
❌1837.5% higher power demand at 155W vs 8W.
❌Older platform position on TR4 with DDR4, while Ryzen 7 7840S moves to FP7/FP7r2/FP8 and DDR5.
❌No integrated graphics, while Ryzen 7 7840S can still boot and troubleshoot without a discrete GPU.

Ryzen 7 7840S

2023

Why buy it

✅Better for gaming: +21.2% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 8W instead of 155W, a 147W reduction.
✅Newer platform on FP7/FP7r2/FP8 with DDR5 support instead of TR4 and DDR4.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon 780M, while EPYC 7351 needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (16 MB vs 64 MB).
❌Less compelling for workstation-style loads than EPYC 7351, which brings 16 cores / 32 threads.

Quick Answers

So, is Ryzen 7 7840S better than EPYC 7351?

Not really, because they are built for different jobs. EPYC 7351 makes more sense for workstation-style multi-core throughput, while Ryzen 7 7840S is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 7840S is the better pick. According to our tests, it delivers 21.2% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 7840S is the stronger fit. You are getting 0.3% better PassMark, backed by 8 cores and 16 threads.

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

Ryzen 7 7840S still makes the most sense overall. Ryzen 7 7840S comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 21.2% average FPS lead across 50 shared CPU game tests in our data.

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

Ryzen 7 7840S makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2017), a healthier platform with FP7/FP7r2/FP8 and DDR5 instead of TR4, more multi-core headroom with 8 cores / 16 threads instead of 16/32, and AVX-512 support for heavier modern compute workloads. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 7351 vs Ryzen 7 7840S Technical Specifications

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

EPYC 7351

The EPYC 7351 is manufactured by AMD. It was released in 29 June 2017 (8 years ago). It is based on the Naples (2017−2018) architecture. It features 16 cores and 32 threads. Base frequency is 2.4 GHz, with boost up to 2.9 GHz. L3 cache: 64 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: TR4. Thermal design power (TDP): 170 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 23,226 points. Launch price was $1,100.

Ryzen 7 7840S

The Ryzen 7 7840S is manufactured by AMD. It was released in 5 January 2023 (2 years ago). It is based on the Phoenix-HS (Zen 4) (2023) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB. L2 cache: 8 MB. Built on 4 nm process technology. Socket: FP7/FP7r2/FP8. Thermal design power (TDP): 8 MB + 16 MB. Memory support: DDR5. Passmark benchmark score: 23,290 points. Launch price was $299.

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Processing Power

The EPYC 7351 packs 16 cores / 32 threads, while the Ryzen 7 7840S offers 8 cores / 16 threads — the EPYC 7351 has 8 more cores. Boost clocks reach 2.9 GHz on the EPYC 7351 versus 5.1 GHz on the Ryzen 7 7840S — a 55% clock advantage for the Ryzen 7 7840S (base: 2.4 GHz vs 3.8 GHz). The EPYC 7351 uses the Naples (2017−2018) architecture (14 nm), while the Ryzen 7 7840S uses Phoenix-HS (Zen 4) (2023) (4 nm). In PassMark, the EPYC 7351 scores 23,226 against the Ryzen 7 7840S's 23,290 — a 0.3% lead for the Ryzen 7 7840S. L3 cache: 64 MB (total) on the EPYC 7351 vs 16 MB on the Ryzen 7 7840S.

Feature	EPYC 7351	Ryzen 7 7840S
Cores / Threads	16 / 32+100%	8 / 16
Boost Clock	2.9 GHz	5.1 GHz+76%
Base Clock	2.4 GHz	3.8 GHz+58%
L3 Cache	64 MB (total)+300%	16 MB
L2 Cache	512K (per core)+6300%	8 MB
Process	14 nm	4 nm-71%
Architecture	Naples (2017−2018)	Phoenix-HS (Zen 4) (2023)
PassMark	23,226	23,290
Cinebench R23 Multi	—	13,500
Geekbench 6 Single	—	2,570
Geekbench 6 Multi	—	13,535

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Memory & Platform

The EPYC 7351 uses the TR4 socket (PCIe 4.0), while the Ryzen 7 7840S uses FP7/FP7r2/FP8 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	EPYC 7351	Ryzen 7 7840S
Socket	TR4	FP7/FP7r2/FP8
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	—	DDR5-5600, LPDDR5x-7500
Max RAM Capacity	—	256 GB
RAM Channels	—	2
ECC Support	—	Yes
PCIe Lanes	—	20

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Advanced Features

Virtualization: not specified (EPYC 7351) / AMD-V (SVM) (Ryzen 7 7840S). The Ryzen 7 7840S includes integrated graphics (Radeon 780M), while the EPYC 7351 requires a dedicated GPU. Primary use case: Ryzen 7 7840S targets Gaming. Direct competitor: Ryzen 7 7840S rivals Core i7-1360P.