EPYC 7443 vs Xeon w7-3455

CPU

GPU

EPYC 7443

24 Cores48 Thrd200 WWMax: 4 GHz2021

EPYC family

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Xeon w7-3455

24 Cores48 Thrd270 WWMax: 4.8 GHz2023

Similar parts

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EPYC 7443 vs Xeon w7-3455 Performance Spectrum

EPYC 7443

24 / 48

56,743

+3.3%

Ryzen Threadripper PRO 3995WX

Ryzen Threadripper 7970X

Ryzen Threadripper PRO 7985WX

Xeon w7-3455

24 / 48

54,925

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 7443 vs Xeon w7-3455 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 w7-3455: 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

✅+3.3% higher PassMark.
✅+89.6% larger total L3 cache (128 MB vs 68 MB).
✅Costs $479 less on MSRP ($2,010 MSRP vs $2,489 MSRP).
✅Delivers 27.9% more PassMark for each dollar spent, at 28.2 vs 22.1 PassMark/$ ($2,010 MSRP vs $2,489 MSRP).
✅Draws 200W instead of 270W, a 70W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w7-3455 across 50 shared CPU benchmark tests.
❌Older platform position on SP3 with DDR4, while Xeon w7-3455 moves to LGA4677 and DDR5.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon w7-3455

2023

Why buy it

✅Better for gaming: +20.7% higher average FPS across 50 shared CPU benchmark tests.
✅Newer platform on LGA4677 with DDR5 support instead of SP3 and DDR4.
✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

❌Lower PassMark (54,925 vs 56,743).
❌Smaller total L3 cache (68 MB vs 128 MB).
❌Lower PassMark per dollar, at 22.1 vs 28.2 PassMark/$ ($2,489 MSRP vs $2,010 MSRP).
❌35% higher power demand at 270W vs 200W.

Quick Answers

So, is EPYC 7443 better than Xeon w7-3455?

It depends on what you want from the system. For gaming, Xeon w7-3455 is ahead with a 20.7% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, EPYC 7443 pulls ahead with 3.3% better PassMark. EPYC 7443 also has the bigger cache pool with 89.6% larger total L3 cache (128 MB vs 68 MB).

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

For streaming, content creation, and heavier multitasking, EPYC 7443 is the stronger fit. You are getting 3.3% better PassMark, backed by 24 cores and 48 threads. It also has the larger cache pool with 89.6% larger total L3 cache (128 MB vs 68 MB).

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

EPYC 7443 is the better buy right now. EPYC 7443 comes in $479 cheaper on MSRP at $2,010 MSRP versus $2,489 MSRP, and it still gives you 3.3% better PassMark. The compromise is that Xeon w7-3455 is still the better pure gaming CPU with a 20.7% average FPS lead across 50 shared CPU game tests in our data. It is also 27.9% better value on MSRP (28.2 vs 22.1 PassMark/$), 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 w7-3455 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 7443 vs Xeon w7-3455 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 w7-3455

The Xeon w7-3455 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 24 cores and 48 threads. Base frequency is 2.5 GHz, with boost up to 4.8 GHz. L3 cache: 67.5 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: 54,925 points. Launch price was $2,489.

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Processing Power

Both the EPYC 7443 and Xeon w7-3455 share an identical 24-core/48-thread configuration. Boost clocks reach 4 GHz on the EPYC 7443 versus 4.8 GHz on the Xeon w7-3455 — a 18.2% clock advantage for the Xeon w7-3455 (base: 2.85 GHz vs 2.5 GHz). The EPYC 7443 uses the Milan (2021−2023) architecture (7 nm+), while the Xeon w7-3455 uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the EPYC 7443 scores 56,743 against the Xeon w7-3455's 54,925 — a 3.3% lead for the EPYC 7443. L3 cache: 128 MB (total) on the EPYC 7443 vs 67.5 MB on the Xeon w7-3455.

Feature	EPYC 7443	Xeon w7-3455
Cores / Threads	24 / 48	24 / 48
Boost Clock	4 GHz	4.8 GHz+20%
Base Clock	2.85 GHz+14%	2.5 GHz
L3 Cache	128 MB (total)+90%	67.5 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	56,743+3%	54,925
Geekbench 6 Single	—	1,900
Geekbench 6 Multi	—	1,898

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Memory & Platform

The EPYC 7443 uses the SP3 socket (PCIe 4.0), while the Xeon w7-3455 uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7443 versus DDR5-4800 on the Xeon w7-3455 — the Xeon w7-3455 supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 4096 GB of RAM. Both feature 8-channel memory with ECC support. PCIe lanes: 128 (EPYC 7443) vs 112 (Xeon w7-3455) — the EPYC 7443 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7443) and Intel W790 (Xeon w7-3455).

Feature	EPYC 7443	Xeon w7-3455
Socket	SP3	LGA4677
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	3200	DDR5-4800+50%
Max RAM Capacity	4096 GB	4096 GB
RAM Channels	8	8
ECC Support	Yes	Yes
PCIe Lanes	128+14%	112

🔧

Advanced Features

Only the Xeon w7-3455 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon w7-3455 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (EPYC 7443) vs true (Xeon w7-3455). Direct competitor: EPYC 7443 rivals Xeon Platinum 8362; Xeon w7-3455 rivals Threadripper PRO 7965WX.

Feature	EPYC 7443	Xeon w7-3455
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	Yes
AVX-512	No	Yes
Virtualization	VT-x, VT-d	true

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Value Analysis

At launch, the EPYC 7443 was priced at $2010, while the Xeon w7-3455 came in at $2489. On launch pricing ($2010 vs $2489), EPYC 7443 was $479 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7443 delivers 28.2 pts/$ vs 22.1 pts/$ for the Xeon w7-3455 — making the EPYC 7443 the 24.5% better value option.

Feature	EPYC 7443	Xeon w7-3455
MSRP	$2010-19%	$2489
Performance per Dollar	28.2+28%	22.1
Release Date	2021	2023

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