EPYC 7343 vs Xeon w5-3435X

CPU

GPU

EPYC 7343

16 Cores32 Thrd190 WWMax: 3.9 GHz2021

EPYC family

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Xeon w5-3435X

16 Cores32 Thrd270 WWMax: 4.7 GHz2023

Similar parts

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EPYC 7343 vs Xeon w5-3435X Performance Spectrum

EPYC 7343

16 / 32

43,644

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

Xeon w5-3435X

16 / 32

45,086

+3.3%

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 7343 vs Xeon w5-3435X 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 7343 vs Xeon w5-3435X: Pros, Cons & Final Verdict

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

EPYC 7343

2021

Why buy it

✅+184.4% larger total L3 cache (128 MB vs 45 MB).
✅Costs $24 less on MSRP ($1,565 MSRP vs $1,589 MSRP).
✅Draws 190W instead of 270W, a 80W reduction.
✅14.3% more PCIe lanes (128 vs 112) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w5-3435X across 50 shared CPU benchmark tests.
❌Lower PassMark (43,644 vs 45,086).
❌Older platform position on SP3 with DDR4, while Xeon w5-3435X moves to LGA4677 and DDR5.

Xeon w5-3435X

2023

Why buy it

✅Better for gaming: +16.3% higher average FPS across 50 shared CPU benchmark tests.
✅Newer platform on LGA4677 with DDR5 support instead of SP3 and DDR4.

Trade-offs

❌Smaller total L3 cache (45 MB vs 128 MB).
❌
1.5% HIGHER MSRP
$1,589 MSRPvs$1,565 MSRP
❌42.1% higher power demand at 270W vs 190W.

Quick Answers

So, is Xeon w5-3435X better than EPYC 7343?

Yes. Xeon w5-3435X is the better all-around CPU here. It gives you a 16.3% average FPS lead across 50 shared CPU game tests in our data, 3.3% 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, Xeon w5-3435X is the better pick. According to our tests, it delivers 16.3% 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, Xeon w5-3435X is the stronger fit. You are getting 3.3% better PassMark, backed by 16 cores and 32 threads.

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

Xeon w5-3435X is the better buy right now. Xeon w5-3435X comes in 1.5% more expensive on MSRP at $1,589 MSRP versus $1,565 MSRP, and it still gives you a 16.3% average FPS lead across 50 shared CPU game tests in our data. It is also 1.7% better value on MSRP (28.4 vs 27.9 PassMark/$), 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 w5-3435X 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 more multi-core headroom with 16 cores / 32 threads instead of 16/32. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 7343 vs Xeon w5-3435X Technical Specifications

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

EPYC 7343

The EPYC 7343 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 16 cores and 32 threads. Base frequency is 3.2 GHz, with boost up to 3.9 GHz. L3 cache: 128 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 190 Watt. Memory support: DDR4-3200. Passmark benchmark score: 43,644 points. Launch price was $1,565.

Xeon w5-3435X

The Xeon w5-3435X is manufactured by Intel. It was released in 15 February 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 3.1 GHz, with boost up to 4.7 GHz. L3 cache: 45 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 270 Watt. Memory support: DDR5-4800. Passmark benchmark score: 45,086 points. Launch price was $1,589.

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Processing Power

Both the EPYC 7343 and Xeon w5-3435X share an identical 16-core/32-thread configuration. Boost clocks reach 3.9 GHz on the EPYC 7343 versus 4.7 GHz on the Xeon w5-3435X — a 18.6% clock advantage for the Xeon w5-3435X (base: 3.2 GHz vs 3.1 GHz). The EPYC 7343 uses the Milan (2021−2023) architecture (7 nm+), while the Xeon w5-3435X uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the EPYC 7343 scores 43,644 against the Xeon w5-3435X's 45,086 — a 3.3% lead for the Xeon w5-3435X. L3 cache: 128 MB (total) on the EPYC 7343 vs 45 MB on the Xeon w5-3435X.

Feature	EPYC 7343	Xeon w5-3435X
Cores / Threads	16 / 32	16 / 32
Boost Clock	3.9 GHz	4.7 GHz+21%
Base Clock	3.2 GHz+3%	3.1 GHz
L3 Cache	128 MB (total)+184%	45 MB
L2 Cache	512 kB (per core)	2 MB (per core)+300%
Process	7 nm+	Intel 7 nm
Architecture	Milan (2021−2023)	Sapphire Rapids (2023−2024)
PassMark	43,644	45,086+3%

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Memory & Platform

The EPYC 7343 uses the SP3 socket (PCIe 4.0), while the Xeon w5-3435X uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7343 versus 4800 on the Xeon w5-3435X — the Xeon w5-3435X 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 7343) vs 112 (Xeon w5-3435X) — the EPYC 7343 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7343) and W790 (Xeon w5-3435X).

Feature	EPYC 7343	Xeon w5-3435X
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+14%	112

🔧

Advanced Features

Only the Xeon w5-3435X 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 7343) vs VT-x, VT-d (Xeon w5-3435X). Direct competitor: EPYC 7343 rivals Xeon Gold 6248; Xeon w5-3435X rivals Threadripper PRO 7955WX.

Feature	EPYC 7343	Xeon w5-3435X
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	Yes
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d, AMD-V	VT-x, VT-d

💰

Value Analysis

At launch, the EPYC 7343 was priced at $1565, while the Xeon w5-3435X came in at $1589. On launch pricing ($1565 vs $1589), EPYC 7343 was $24 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7343 delivers 27.9 pts/$ vs 28.4 pts/$ for the Xeon w5-3435X — making the Xeon w5-3435X the 1.7% better value option.

Feature	EPYC 7343	Xeon w5-3435X
MSRP	$1565-2%	$1589
Performance per Dollar	27.9	28.4+2%
Release Date	2021	2023

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