EPYC 4584PX vs Xeon Gold 6421N

CPU

GPU

EPYC 4584PX

16 Cores32 Thrd120 WWMax: 5.7 GHz2024

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Xeon Gold 6421N

32 Cores64 Thrd185 WWMax: 3.6 GHz2023

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EPYC 4584PX vs Xeon Gold 6421N Performance Spectrum

EPYC 4584PX

16 / 32

60,169

+2.3%

Ryzen AI 9 HX PRO 375

Ryzen Threadripper PRO 5945WX

Ryzen 9 PRO 7945

Ryzen 9 8945HX

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

Ryzen Threadripper 7970X

Ryzen Threadripper PRO 7985WX

Xeon Gold 6421N

32 / 64

58,797

0.0%

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 4584PX vs Xeon Gold 6421N 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 4584PX vs Xeon Gold 6421N: Pros, Cons & Final Verdict

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

EPYC 4584PX

2024

Why buy it

✅Better for gaming: +33.6% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $851 less on MSRP ($1,517 MSRP vs $2,368 MSRP).
✅Delivers 59.7% more PassMark for each dollar spent, at 39.7 vs 24.8 PassMark/$ ($1,517 MSRP vs $2,368 MSRP).
✅Draws 120W instead of 185W, a 65W reduction.
✅Integrated graphics onboard with AMD Radeon Graphics, while Xeon Gold 6421N needs a discrete GPU.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Xeon Gold 6421N

2023

Why buy it

✅185.7% more PCIe lanes (80 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 4584PX across 50 shared CPU benchmark tests.
❌Lower PassMark (58,797 vs 60,169).
❌Lower PassMark per dollar, at 24.8 vs 39.7 PassMark/$ ($2,368 MSRP vs $1,517 MSRP).
❌54.2% higher power demand at 185W vs 120W.
❌No integrated graphics, while EPYC 4584PX can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is EPYC 4584PX better than Xeon Gold 6421N?

Yes. EPYC 4584PX is the better all-around CPU here. It gives you a 33.6% average FPS lead across 50 shared CPU game tests in our data, 2.3% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, EPYC 4584PX is the better pick. According to our tests, it delivers 33.6% more average FPS across 50 shared CPU game tests. It also has a clear cache advantage at 128 MB versus 60 MB.

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

For streaming, content creation, and heavier multitasking, EPYC 4584PX is the stronger fit. You are getting 2.3% better PassMark, backed by 16 cores and 32 threads. It also has the larger cache pool with 113.3% larger total L3 cache (128 MB vs 60 MB).

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

EPYC 4584PX is the better buy right now. EPYC 4584PX comes in $851 cheaper on MSRP at $1,517 MSRP versus $2,368 MSRP, and it still gives you a 33.6% average FPS lead across 50 shared CPU game tests in our data. It is also 59.7% better value on MSRP (39.7 vs 24.8 PassMark/$), 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 4584PX makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2023), 3D V-Cache and a much larger 128 MB L3 cache instead of 60 MB, and more multi-core headroom with 16 cores / 32 threads instead of 32/64. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 4584PX vs Xeon Gold 6421N Technical Specifications

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

EPYC 4584PX

The EPYC 4584PX is manufactured by AMD. It was released in 21 May 2024 (1 year ago). It is based on the Raphael (2023−2025) architecture. It features 16 cores and 32 threads. Base frequency is 4.2 GHz, with boost up to 5.7 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5. Passmark benchmark score: 60,169 points. Launch price was $699.

Xeon Gold 6421N

The Xeon Gold 6421N is manufactured by Intel. It was released in 10 January 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 32 cores and 64 threads. Base frequency is 1.8 GHz, with boost up to 3.6 GHz. L3 cache: 60 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 185 Watt. Memory support: DDR5-4400. Passmark benchmark score: 58,797 points. Launch price was $2,368.

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Processing Power

The EPYC 4584PX packs 16 cores / 32 threads, while the Xeon Gold 6421N offers 32 cores / 64 threads — the Xeon Gold 6421N has 16 more cores. Boost clocks reach 5.7 GHz on the EPYC 4584PX versus 3.6 GHz on the Xeon Gold 6421N — a 45.2% clock advantage for the EPYC 4584PX (base: 4.2 GHz vs 1.8 GHz). The EPYC 4584PX uses the Raphael (2023−2025) architecture (5 nm), while the Xeon Gold 6421N uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the EPYC 4584PX scores 60,169 against the Xeon Gold 6421N's 58,797 — a 2.3% lead for the EPYC 4584PX. L3 cache: 128 MB (total) on the EPYC 4584PX vs 60 MB on the Xeon Gold 6421N.

Feature	EPYC 4584PX	Xeon Gold 6421N
Cores / Threads	16 / 32	32 / 64+100%
Boost Clock	5.7 GHz+58%	3.6 GHz
Base Clock	4.2 GHz+133%	1.8 GHz
L3 Cache	128 MB (total)+113%	60 MB
L2 Cache	1 MB (per core)	2 MB (per core)+100%
Process	5 nm-29%	Intel 7 nm
Architecture	Raphael (2023−2025)	Sapphire Rapids (2023−2024)
PassMark	60,169+2%	58,797

🧠

Memory & Platform

The EPYC 4584PX uses the AM5 socket (PCIe 4.0), while the Xeon Gold 6421N uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 5200 on the EPYC 4584PX versus 4800 on the Xeon Gold 6421N — the EPYC 4584PX supports 8.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6421N supports up to 4096 of RAM compared to 256 — 1500% more capacity for professional workloads. Memory channels: 2 (EPYC 4584PX) vs 8 (Xeon Gold 6421N). PCIe lanes: 28 (EPYC 4584PX) vs 80 (Xeon Gold 6421N) — the Xeon Gold 6421N offers 52 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM5 (EPYC 4584PX) and C741 (Xeon Gold 6421N).

Feature	EPYC 4584PX	Xeon Gold 6421N
Socket	AM5	LGA4677
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	5200+8%	4800
Max RAM Capacity	256	4096+1500%
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	28	80+186%

🔧

Advanced Features

Only the EPYC 4584PX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, AMD-V (EPYC 4584PX) vs VT-x, VT-d (Xeon Gold 6421N). The EPYC 4584PX includes integrated graphics (AMD Radeon Graphics), while the Xeon Gold 6421N requires a dedicated GPU. Direct competitor: EPYC 4584PX rivals Ryzen 9 7950X; Xeon Gold 6421N rivals EPYC 9354.

Feature	EPYC 4584PX	Xeon Gold 6421N
Integrated GPU	Yes	No
IGPU Model	AMD Radeon Graphics	None
Unlocked	Yes	No
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d, AMD-V	VT-x, VT-d

💰

Value Analysis

At launch, the EPYC 4584PX was priced at $1517, while the Xeon Gold 6421N came in at $2368. On launch pricing ($1517 vs $2368), EPYC 4584PX was $851 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 4584PX delivers 39.7 pts/$ vs 24.8 pts/$ for the Xeon Gold 6421N — making the EPYC 4584PX the 46% better value option.

Feature	EPYC 4584PX	Xeon Gold 6421N
MSRP	$1517-36%	$2368
Performance per Dollar	39.7+60%	24.8
Release Date	2024	2023

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