Xeon Gold 5420+ vs Xeon W-3365

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.

Xeon Gold 5420+ vs Xeon W-3365 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.

Xeon Gold 5420+ vs Xeon W-3365: Pros, Cons & Final Verdict

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

Xeon Gold 5420+

2023

Why buy it

✅Costs $1,651 less on MSRP ($1,848 MSRP vs $3,499 MSRP).
✅Delivers 92.3% more PassMark for each dollar spent, at 31.5 vs 16.4 PassMark/$ ($1,848 MSRP vs $3,499 MSRP).
✅Draws 205W instead of 270W, a 65W reduction.
✅Newer platform on LGA4677 with DDR5 support instead of LGA4189 and DDR4.
✅25% more PCIe lanes (80 vs 64) for storage and expansion-heavy builds.

Trade-offs

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

Xeon W-3365

2021

Why buy it

Trade-offs

❌Lower PassMark (57,312 vs 58,209).
❌Lower PassMark per dollar, at 16.4 vs 31.5 PassMark/$ ($3,499 MSRP vs $1,848 MSRP).
❌31.7% higher power demand at 270W vs 205W.
❌Older platform position on LGA4189 with DDR4, while Xeon Gold 5420+ moves to LGA4677 and DDR5.

Quick Answers

So, is Xeon Gold 5420+ better than Xeon W-3365?

Yes. Xeon Gold 5420+ is the better all-around CPU here. It gives you a 1.6% average FPS lead across 50 shared CPU game tests in our data, 1.6% 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 Gold 5420+ is the better pick. According to our tests, it delivers 1.6% 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 Gold 5420+ is the stronger fit. You are getting 1.6% better PassMark, backed by 28 cores and 56 threads.

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

Xeon Gold 5420+ is the better buy right now. Xeon Gold 5420+ comes in $1,651 cheaper on MSRP at $1,848 MSRP versus $3,499 MSRP, and it still gives you a 1.6% average FPS lead across 50 shared CPU game tests in our data. It is also 92.3% better value on MSRP (31.5 vs 16.4 PassMark/$), 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 5420+ 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 LGA4189, and more multi-core headroom with 28 cores / 56 threads instead of 32/64. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Xeon Gold 5420+ vs Xeon W-3365 Technical Specifications

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

Xeon Gold 5420+

The Xeon Gold 5420+ 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 28 cores and 56 threads. Base frequency is 2 GHz, with boost up to 4.1 GHz. L3 cache: 52.5 MB. L2 cache: 2 MB (per core). Built on 10 nm process technology. Socket: LGA4677. Thermal design power (TDP): 205 Watt. Memory support: DDR5-4400. Passmark benchmark score: 58,209 points. Launch price was $1,848.

Xeon W-3365

The Xeon W-3365 is manufactured by Intel. It was released in 2021-07-29. It is based on the Ice Lake-W (2021) architecture. It features 32 cores and 64 threads. Base frequency is 2.7 GHz, with boost up to 4 GHz. L3 cache: 48 MB (total). L2 cache: 1 MB (per core). Built on 10 nm process technology. Socket: LGA4189. Thermal design power (TDP): 270 Watt. Memory support: DDR4-3200. Passmark benchmark score: 57,312 points. Launch price was $3,499.

⚡

Processing Power

The Xeon Gold 5420+ packs 28 cores / 56 threads, while the Xeon W-3365 offers 32 cores / 64 threads — the Xeon W-3365 has 4 more cores. Boost clocks reach 4.1 GHz on the Xeon Gold 5420+ versus 4 GHz on the Xeon W-3365 — a 2.5% clock advantage for the Xeon Gold 5420+ (base: 2 GHz vs 2.7 GHz). The Xeon Gold 5420+ uses the Sapphire Rapids (2023−2024) architecture (10 nm), while the Xeon W-3365 uses Ice Lake-W (2021) (10 nm). In PassMark, the Xeon Gold 5420+ scores 58,209 against the Xeon W-3365's 57,312 — a 1.6% lead for the Xeon Gold 5420+. L3 cache: 52.5 MB on the Xeon Gold 5420+ vs 48 MB (total) on the Xeon W-3365.

Feature	Xeon Gold 5420+	Xeon W-3365
Cores / Threads	28 / 56	32 / 64+14%
Boost Clock	4.1 GHz+2%	4 GHz
Base Clock	2 GHz	2.7 GHz+35%
L3 Cache	52.5 MB+9%	48 MB (total)
L2 Cache	2 MB (per core)+100%	1 MB (per core)
Process	10 nm	10 nm
Architecture	Sapphire Rapids (2023−2024)	Ice Lake-W (2021)
PassMark	58,209+2%	57,312
Geekbench 6 Single	—	1,960
Geekbench 6 Multi	—	16,817

🧠

Memory & Platform

The Xeon Gold 5420+ uses the LGA4677 socket (PCIe 4.0), while the Xeon W-3365 uses LGA4189 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Xeon Gold 5420+ versus DDR4-3200 on the Xeon W-3365 — the Xeon Gold 5420+ 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: 80 (Xeon Gold 5420+) vs 64 (Xeon W-3365) — the Xeon Gold 5420+ offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C741 (Xeon Gold 5420+) and Intel C621A (Xeon W-3365).

Feature	Xeon Gold 5420+	Xeon W-3365
Socket	LGA4677	LGA4189
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	4800+50%	DDR4-3200
Max RAM Capacity	4096 GB	4096 GB
RAM Channels	8	8
ECC Support	Yes	Yes
PCIe Lanes	80+25%	64

🔧

Advanced Features

Neither processor supports overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d (Xeon Gold 5420+) vs true (Xeon W-3365). Direct competitor: Xeon Gold 5420+ rivals EPYC 9354; Xeon W-3365 rivals EPYC 7543.

Feature	Xeon Gold 5420+	Xeon W-3365
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	No
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d	true

💰

Value Analysis

At launch, the Xeon Gold 5420+ was priced at $1848, while the Xeon W-3365 came in at $3499. On launch pricing ($1848 vs $3499), Xeon Gold 5420+ was $1651 cheaper. In terms of value on MSRP (PassMark points per dollar), the Xeon Gold 5420+ delivers 31.5 pts/$ vs 16.4 pts/$ for the Xeon W-3365 — making the Xeon Gold 5420+ the 63.2% better value option.

Feature	Xeon Gold 5420+	Xeon W-3365
MSRP	$1848-47%	$3499
Performance per Dollar	31.5+92%	16.4
Release Date	2023	2021

Search Xeon Gold 5420+ on Amazon

Search Xeon W-3365 on Amazon

Affiliate Disclosure

ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.