EPYC 7443 vs Xeon Gold 6423N

CPU

GPU

EPYC 7443

24 Cores48 Thrd200 WWMax: 4 GHz2021

EPYC family

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Xeon Gold 6423N

28 Cores56 Thrd195 WWMax: 3.6 GHz2023

Similar parts

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EPYC 7443 vs Xeon Gold 6423N Performance Spectrum

EPYC 7443

24 / 48

56,743

0.0%

Ryzen Threadripper PRO 3995WX

Ryzen Threadripper 7970X

Ryzen Threadripper PRO 7985WX

Xeon Gold 6423N

28 / 56

57,434

+1.2%

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 7443 vs Xeon Gold 6423N 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 7443 vs Xeon Gold 6423N: Pros, Cons & Final Verdict

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

EPYC 7443

2021

Why buy it

✅Better for gaming: +4.4% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $151 less on MSRP ($2,010 MSRP vs $2,161 MSRP).
✅60% more PCIe lanes (128 vs 80) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (56,743 vs 57,434).
❌Older platform position on SP3 with DDR4, while Xeon Gold 6423N moves to LGA4677 and DDR5.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon Gold 6423N

2023

Why buy it

✅+1.2% higher PassMark.
✅Draws 195W instead of 200W, a 5W reduction.
✅Newer platform on LGA4677 with DDR5 support instead of SP3 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 7443 across 50 shared CPU benchmark tests.
❌
7.5% HIGHER MSRP
$2,161 MSRPvs$2,010 MSRP

Quick Answers

So, is Xeon Gold 6423N better than EPYC 7443?

It depends on what you want from the system. For gaming, EPYC 7443 is ahead with a 4.4% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon Gold 6423N pulls ahead with 1.2% better PassMark. EPYC 7443 also has the bigger cache pool with 143.8% larger total L3 cache (128 MB vs 53 MB).

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

For streaming, content creation, and heavier multitasking, Xeon Gold 6423N is the stronger fit. You are getting 1.2% better PassMark, backed by 28 cores and 56 threads.

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

Xeon Gold 6423N is still the faster CPU overall, but EPYC 7443 is easier to justify if budget matters more than peak performance. Xeon Gold 6423N comes in 7.5% more expensive on MSRP at $2,161 MSRP versus $2,010 MSRP, and it still gives you 1.2% better PassMark. The compromise is that EPYC 7443 is still the better pure gaming CPU with a 4.4% average FPS lead across 50 shared CPU game tests in our data. EPYC 7443 is also 6.2% better value on MSRP (28.2 vs 26.6 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Xeon Gold 6423N makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), a healthier platform with LGA4677 and DDR5 instead of SP3, more multi-core headroom with 28 cores / 56 threads instead of 24/48, and AVX-512 support for heavier modern compute workloads. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 7443 vs Xeon Gold 6423N Technical Specifications

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

EPYC 7443

The EPYC 7443 is manufactured by AMD. It was released in 15 March 2021 (4 years ago). It is based on the Milan (2021−2023) architecture. It features 24 cores and 48 threads. Base frequency is 2.85 GHz, with boost up to 4 GHz. L3 cache: 128 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 200 Watt. Memory support: DDR4-3200. Passmark benchmark score: 56,743 points. Launch price was $2,010.

Xeon Gold 6423N

The Xeon Gold 6423N is manufactured by Intel. It was released in 2023-07-01. It features 28 cores and 56 threads. Base frequency is 2 GHz, with boost up to 3.6 GHz. L3 cache: 52.5 MB. Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 195 Watt. Memory support: DDR5-4400. Passmark benchmark score: 57,434 points. Launch price was $2,161.

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Processing Power

The EPYC 7443 packs 24 cores / 48 threads, while the Xeon Gold 6423N offers 28 cores / 56 threads — the Xeon Gold 6423N has 4 more cores. Boost clocks reach 4 GHz on the EPYC 7443 versus 3.6 GHz on the Xeon Gold 6423N — a 10.5% clock advantage for the EPYC 7443 (base: 2.85 GHz vs 2 GHz). The EPYC 7443 is built on the Milan (2021−2023) architecture. In PassMark, the EPYC 7443 scores 56,743 against the Xeon Gold 6423N's 57,434 — a 1.2% lead for the Xeon Gold 6423N. L3 cache: 128 MB (total) on the EPYC 7443 vs 52.5 MB on the Xeon Gold 6423N.

Feature	EPYC 7443	Xeon Gold 6423N
Cores / Threads	24 / 48	28 / 56+17%
Boost Clock	4 GHz+11%	3.6 GHz
Base Clock	2.85 GHz+43%	2 GHz
L3 Cache	128 MB (total)+144%	52.5 MB
L2 Cache	512 kB (per core)	—
Process	7 nm+	Intel 7 nm
Architecture	Milan (2021−2023)	—
PassMark	56,743	57,434+1%

🧠

Memory & Platform

The EPYC 7443 uses the SP3 socket (PCIe 4.0), while the Xeon Gold 6423N uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7443 versus 4800 on the Xeon Gold 6423N — the Xeon Gold 6423N supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 4096 of RAM. Both feature 8-channel memory with ECC support. PCIe lanes: 128 (EPYC 7443) vs 80 (Xeon Gold 6423N) — the EPYC 7443 offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7443) and C741 (Xeon Gold 6423N).

Feature	EPYC 7443	Xeon Gold 6423N
Socket	SP3	LGA4677
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	3200	4800+50%
Max RAM Capacity	4096	4096
RAM Channels	8	8
ECC Support	Yes	Yes
PCIe Lanes	128+60%	80

🔧

Advanced Features

Neither processor supports overclocking. Only the Xeon Gold 6423N supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. Direct competitor: EPYC 7443 rivals Xeon Platinum 8362; Xeon Gold 6423N rivals EPYC 9354.

Feature	EPYC 7443	Xeon Gold 6423N
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	No
AVX-512	No	Yes
Virtualization	VT-x, VT-d	VT-x, VT-d

💰

Value Analysis

At launch, the EPYC 7443 was priced at $2010, while the Xeon Gold 6423N came in at $2161. On launch pricing ($2010 vs $2161), EPYC 7443 was $151 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7443 delivers 28.2 pts/$ vs 26.6 pts/$ for the Xeon Gold 6423N — making the EPYC 7443 the 6% better value option.

Feature	EPYC 7443	Xeon Gold 6423N
MSRP	$2010-7%	$2161
Performance per Dollar	28.2+6%	26.6
Release Date	2021	2023

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