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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

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 4 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: +26.4% higher average FPS across 4 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.

EPYC 7351

2017

Ryzen 7 7840S

2023

Why buy it

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

Why buy it

✅Better for gaming: +26.4% higher average FPS across 4 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

❌Worse for gaming: lower average FPS than Ryzen 7 7840S across 4 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.

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 in a simple one-size-fits-all way. EPYC 7351 makes more sense for workstation-style multi-core throughput, while Ryzen 7 7840S is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 7840S is the better pick here. According to our tests, it delivers 26.4% more average FPS across 4 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 better 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 looks like the safer overall buy. Ryzen 7 7840S is at an unclear MSRP at unclear MSRP versus unclear MSRP, and it gives you a 26.4% average FPS lead across 4 shared CPU game tests in our data.

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

Ryzen 7 7840S is the more future-proof choice 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 should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

Games Benchmarks

Paired with RTX 4090

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.

EPYC 7351 Benchmark Check

Ryzen 7 7840S Benchmark Check

Path of Exile 2

Preset	EPYC 7351	Ryzen 7 7840S
1080p
low	183 FPS	269 FPS
medium	160 FPS	243 FPS
high	128 FPS	204 FPS
ultra	102 FPS	176 FPS
1440p
low	151 FPS	236 FPS
medium	126 FPS	193 FPS
high	96 FPS	157 FPS
ultra	77 FPS	139 FPS
4K
low	70 FPS	164 FPS
medium	62 FPS	136 FPS
high	48 FPS	105 FPS
ultra	39 FPS	92 FPS

Open EPYC 7351 Open Ryzen 7 7840S

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 7351	Ryzen 7 7840S
1080p
low	353 FPS	509 FPS
medium	321 FPS	419 FPS
high	271 FPS	361 FPS
ultra	219 FPS	322 FPS
1440p
low	305 FPS	445 FPS
medium	279 FPS	386 FPS
high	239 FPS	332 FPS
ultra	187 FPS	283 FPS
4K
low	190 FPS	293 FPS
medium	176 FPS	266 FPS
high	151 FPS	251 FPS
ultra	122 FPS	216 FPS

Open EPYC 7351 Open Ryzen 7 7840S

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 7351	Ryzen 7 7840S
1080p
low	581 FPS	582 FPS
medium	513 FPS	582 FPS
high	462 FPS	582 FPS
ultra	396 FPS	546 FPS
1440p
low	513 FPS	582 FPS
medium	428 FPS	582 FPS
high	376 FPS	541 FPS
ultra	323 FPS	464 FPS
4K
low	381 FPS	541 FPS
medium	305 FPS	473 FPS
high	269 FPS	419 FPS
ultra	219 FPS	355 FPS

Open EPYC 7351 Open Ryzen 7 7840S

League of Legends

League of Legends

Valorant

Preset	EPYC 7351	Ryzen 7 7840S
1080p
low	581 FPS	582 FPS
medium	581 FPS	582 FPS
high	581 FPS	582 FPS
ultra	569 FPS	582 FPS
1440p
low	581 FPS	582 FPS
medium	581 FPS	582 FPS
high	504 FPS	582 FPS
ultra	425 FPS	573 FPS
4K
low	476 FPS	572 FPS
medium	430 FPS	511 FPS
high	378 FPS	457 FPS
ultra	323 FPS	394 FPS

Open EPYC 7351 Open Ryzen 7 7840S

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 7351 and Ryzen 7 7840S

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)	8 MB+1500%
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

🧠

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

🔧

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.