EPYC 7451 vs Ryzen 7 5800X

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 7451 vs Ryzen 7 5800X 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 7451 vs Ryzen 7 5800X: Pros, Cons & Final Verdict

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

EPYC 7451

2017

Why buy it

✅+100% larger total L3 cache (64 MB vs 32 MB).
✅Better for workstations and heavier parallel workloads: 24 cores / 48 threads.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 5800X across 50 shared CPU benchmark tests.
❌Lower PassMark (26,639 vs 27,712).
❌71.4% higher power demand at 180W vs 105W.

Ryzen 7 5800X

2020

Why buy it

✅Better for gaming: +12.8% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 105W instead of 180W, a 75W reduction.
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Smaller total L3 cache (32 MB vs 64 MB).
❌Less compelling for workstation-style loads than EPYC 7451, which brings 24 cores / 48 threads.
❌Launch MSRP is still $449 MSRP, while EPYC 7451 mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Ryzen 7 5800X better than EPYC 7451?

Not really, because they are built for different jobs. EPYC 7451 makes more sense for workstation-style multi-core throughput, while Ryzen 7 5800X 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 5800X is the better pick. According to our tests, it delivers 12.8% 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 5800X is the stronger fit. You are getting 4% better PassMark, backed by 8 cores and 16 threads.

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

Ryzen 7 5800X is the better buy right now. Ryzen 7 5800X comes in at an unclear MSRP at $449 MSRP versus unclear MSRP, and it still gives you a 12.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (61.7 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Ryzen 7 5800X makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2017) and more multi-core headroom with 8 cores / 16 threads instead of 24/48. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

EPYC 7451 vs Ryzen 7 5800X Technical Specifications

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

EPYC 7451

The EPYC 7451 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 24 cores and 48 threads. Base frequency is 2.3 GHz, with boost up to 3.2 GHz. L3 cache: 64 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: TR4. Thermal design power (TDP): 180 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 26,639 points. Launch price was $2,400.

Ryzen 7 5800X

The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 27,712 points. Launch price was $449.

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Processing Power

The EPYC 7451 packs 24 cores / 48 threads, while the Ryzen 7 5800X offers 8 cores / 16 threads — the EPYC 7451 has 16 more cores. Boost clocks reach 3.2 GHz on the EPYC 7451 versus 4.7 GHz on the Ryzen 7 5800X — a 38% clock advantage for the Ryzen 7 5800X (base: 2.3 GHz vs 3.8 GHz). The EPYC 7451 uses the Naples (2017−2018) architecture (14 nm), while the Ryzen 7 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the EPYC 7451 scores 26,639 against the Ryzen 7 5800X's 27,712 — a 3.9% lead for the Ryzen 7 5800X. L3 cache: 64 MB (total) on the EPYC 7451 vs 32 MB on the Ryzen 7 5800X.

Feature	EPYC 7451	Ryzen 7 5800X
Cores / Threads	24 / 48+200%	8 / 16
Boost Clock	3.2 GHz	4.7 GHz+47%
Base Clock	2.3 GHz	3.8 GHz+65%
L3 Cache	64 MB (total)+100%	32 MB
L2 Cache	512K (per core)	512K (per core)
Process	14 nm	7 nm, 12 nm-50%
Architecture	Naples (2017−2018)	Vermeer (Zen 3) (2020−2022)
PassMark	26,639	27,712+4%