EPYC 7543 vs Xeon Gold 6438Y+

CPU

GPU

EPYC 7543

32 Cores64 Thrd225 WWMax: 3.7 GHz2021

EPYC family

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Xeon Gold 6438Y+

32 Cores64 Thrd205 WWMax: 4 GHz2023

Similar parts

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EPYC 7543 vs Xeon Gold 6438Y+ Performance Spectrum

EPYC 7543

32 / 64

62,952

+0.5%

Ryzen AI 9 HX 370

Ryzen AI Max 390

Ryzen Threadripper PRO 5955WX

Ryzen 9 9955HX

Ryzen Threadripper 3990X

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

Ryzen Threadripper PRO 7985WX

Xeon Gold 6438Y+

32 / 64

62,660

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 7543 vs Xeon Gold 6438Y+ 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 7543 vs Xeon Gold 6438Y+: Pros, Cons & Final Verdict

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

EPYC 7543

2021

Why buy it

✅+0.5% higher PassMark.
✅+326.7% larger total L3 cache (256 MB vs 60 MB).
✅60% more PCIe lanes (128 vs 80) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Gold 6438Y+ across 50 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 6.1 vs 24.0 PassMark/$ ($10,257 MSRP vs $2,607 MSRP).
❌Older platform position on SP3 with DDR4, while Xeon Gold 6438Y+ moves to LGA4677 and DDR5.

Xeon Gold 6438Y+

2023

Why buy it

✅Better for gaming: +5.5% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $7,650 less on MSRP ($2,607 MSRP vs $10,257 MSRP).
✅Delivers 291.6% more PassMark for each dollar spent, at 24.0 vs 6.1 PassMark/$ ($2,607 MSRP vs $10,257 MSRP).
✅Draws 205W instead of 225W, a 20W reduction.
✅Newer platform on LGA4677 with DDR5 support instead of SP3 and DDR4.

Trade-offs

❌Lower PassMark (62,660 vs 62,952).
❌Smaller total L3 cache (60 MB vs 256 MB).

Quick Answers

So, is Xeon Gold 6438Y+ better than EPYC 7543?

It depends on what you want from the system. For gaming, Xeon Gold 6438Y+ is ahead with a 5.5% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, EPYC 7543 pulls ahead with 0.5% better PassMark. EPYC 7543 also has the bigger cache pool with 326.7% larger total L3 cache (256 MB vs 60 MB).

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

For streaming, content creation, and heavier multitasking, EPYC 7543 is the stronger fit. You are getting 0.5% better PassMark, backed by 32 cores and 64 threads. It also has the larger cache pool with 326.7% larger total L3 cache (256 MB vs 60 MB).

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

Xeon Gold 6438Y+ is the better buy right now. Xeon Gold 6438Y+ comes in $7,650 cheaper on MSRP at $2,607 MSRP versus $10,257 MSRP, and it still gives you a 5.5% average FPS lead across 50 shared CPU game tests in our data. The compromise is that EPYC 7543 is still stronger for heavier multi-core work with 0.5% better PassMark. It is also 291.6% better value on MSRP (24.0 vs 6.1 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Xeon Gold 6438Y+ 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, and AVX-512 support for heavier modern compute workloads. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 7543 vs Xeon Gold 6438Y+ Technical Specifications

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

EPYC 7543

The EPYC 7543 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 32 cores and 64 threads. Base frequency is 2.8 GHz, with boost up to 3.7 GHz. L3 cache: 256 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 225 Watt. Memory support: DDR4-3200. Passmark benchmark score: 62,952 points. Launch price was $3,761.

Xeon Gold 6438Y+

The Xeon Gold 6438Y+ 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 2 GHz, with boost up to 4 GHz. L3 cache: 60 MB. L2 cache: 2 MB (per core). Built on 10 nm process technology. Socket: LGA4677. Thermal design power (TDP): 205 Watt. Memory support: DDR5-4800. Passmark benchmark score: 62,660 points. Launch price was $3,141.

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Processing Power

Both the EPYC 7543 and Xeon Gold 6438Y+ share an identical 32-core/64-thread configuration. Boost clocks reach 3.7 GHz on the EPYC 7543 versus 4 GHz on the Xeon Gold 6438Y+ — a 7.8% clock advantage for the Xeon Gold 6438Y+ (base: 2.8 GHz vs 2 GHz). The EPYC 7543 uses the Milan (2021−2023) architecture (7 nm+), while the Xeon Gold 6438Y+ uses Sapphire Rapids (2023−2024) (10 nm). In PassMark, the EPYC 7543 scores 62,952 against the Xeon Gold 6438Y+'s 62,660 — a 0.5% lead for the EPYC 7543. L3 cache: 256 MB (total) on the EPYC 7543 vs 60 MB on the Xeon Gold 6438Y+.

Feature	EPYC 7543	Xeon Gold 6438Y+
Cores / Threads	32 / 64	32 / 64
Boost Clock	3.7 GHz	4 GHz+8%
Base Clock	2.8 GHz+40%	2 GHz
L3 Cache	256 MB (total)+327%	60 MB
L2 Cache	512 kB (per core)	2 MB (per core)+300%
Process	7 nm+-30%	10 nm
Architecture	Milan (2021−2023)	Sapphire Rapids (2023−2024)
PassMark	62,952	62,660

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Memory & Platform

The EPYC 7543 uses the SP3 socket (PCIe 4.0), while the Xeon Gold 6438Y+ uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7543 versus 4800 on the Xeon Gold 6438Y+ — the Xeon Gold 6438Y+ 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 7543) vs 80 (Xeon Gold 6438Y+) — the EPYC 7543 offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7543) and C741 (Xeon Gold 6438Y+).

Feature	EPYC 7543	Xeon Gold 6438Y+
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 6438Y+ supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. Direct competitor: EPYC 7543 rivals Xeon Platinum 8380; Xeon Gold 6438Y+ rivals EPYC 9354.

Feature	EPYC 7543	Xeon Gold 6438Y+
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 7543 was priced at $10257, while the Xeon Gold 6438Y+ came in at $2607. On launch pricing ($10257 vs $2607), Xeon Gold 6438Y+ was $7650 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7543 delivers 6.1 pts/$ vs 24.0 pts/$ for the Xeon Gold 6438Y+ — making the Xeon Gold 6438Y+ the 118.6% better value option.

Feature	EPYC 7543	Xeon Gold 6438Y+
MSRP	$10257	$2607-75%
Performance per Dollar	6.1	24.0+293%
Release Date	2021	2023

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