Xeon Gold 5420+ vs Xeon Gold 6421N

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 Gold 6421N 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 Gold 6421N: 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

✅Better for gaming: +4.6% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $520 less on MSRP ($1,848 MSRP vs $2,368 MSRP).
✅Delivers 26.9% more PassMark for each dollar spent, at 31.5 vs 24.8 PassMark/$ ($1,848 MSRP vs $2,368 MSRP).

Trade-offs

❌Lower PassMark (58,209 vs 58,797).

Xeon Gold 6421N

2023

Why buy it

✅+1% higher PassMark.
✅Draws 185W instead of 205W, a 20W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Gold 5420+ across 50 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 24.8 vs 31.5 PassMark/$ ($2,368 MSRP vs $1,848 MSRP).

Quick Answers

So, is Xeon Gold 6421N better than Xeon Gold 5420+?

It depends on what you want from the system. For gaming, Xeon Gold 5420+ is ahead with a 4.6% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon Gold 6421N pulls ahead with 1% better PassMark.

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

For streaming, content creation, and heavier multitasking, Xeon Gold 6421N is the stronger fit. You are getting 1% better PassMark, backed by 32 cores and 64 threads.

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

Xeon Gold 6421N is still the faster CPU overall, but Xeon Gold 5420+ is easier to justify if budget matters more than peak performance. Xeon Gold 6421N comes in 28.1% more expensive on MSRP at $2,368 MSRP versus $1,848 MSRP, and it still gives you 1% better PassMark. The compromise is that Xeon Gold 5420+ is still the better pure gaming CPU with a 4.6% average FPS lead across 50 shared CPU game tests in our data. Xeon Gold 5420+ is also 26.9% better value on MSRP (31.5 vs 24.8 PassMark/$), 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 6421N makes more sense long term for 2026 and beyond. You are getting more multi-core headroom with 32 cores / 64 threads instead of 28/56. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Xeon Gold 5420+ vs Xeon Gold 6421N 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 Gold 6421N

The Xeon Gold 6421N 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 1.8 GHz, with boost up to 3.6 GHz. L3 cache: 60 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 185 Watt. Memory support: DDR5-4400. Passmark benchmark score: 58,797 points. Launch price was $2,368.

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Processing Power

The Xeon Gold 5420+ packs 28 cores / 56 threads, while the Xeon Gold 6421N offers 32 cores / 64 threads — the Xeon Gold 6421N has 4 more cores. Boost clocks reach 4.1 GHz on the Xeon Gold 5420+ versus 3.6 GHz on the Xeon Gold 6421N — a 13% clock advantage for the Xeon Gold 5420+ (base: 2 GHz vs 1.8 GHz). Both are built on the Sapphire Rapids (2023−2024) architecture using a 10 nm process. In PassMark, the Xeon Gold 5420+ scores 58,209 against the Xeon Gold 6421N's 58,797 — a 1% lead for the Xeon Gold 6421N. L3 cache: 52.5 MB on the Xeon Gold 5420+ vs 60 MB on the Xeon Gold 6421N.

Feature	Xeon Gold 5420+	Xeon Gold 6421N
Cores / Threads	28 / 56	32 / 64+14%
Boost Clock	4.1 GHz+14%	3.6 GHz
Base Clock	2 GHz+11%	1.8 GHz
L3 Cache	52.5 MB	60 MB+14%
L2 Cache	2 MB (per core)	2 MB (per core)
Process	10 nm	Intel 7 nm-30%
Architecture	Sapphire Rapids (2023−2024)	Sapphire Rapids (2023−2024)
PassMark	58,209	58,797+1%

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Memory & Platform

Both processors use the LGA4677 socket with PCIe 4.0. Both support up to 4800 memory speed. Both support up to 4096 of RAM. Both feature 8-channel memory with ECC support. Both provide 80 PCIe lanes. Chipset compatibility: C741 (Xeon Gold 5420+) and C741 (Xeon Gold 6421N).

Feature	Xeon Gold 5420+	Xeon Gold 6421N
Socket	LGA4677	LGA4677
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	4800	4800
Max RAM Capacity	4096	4096
RAM Channels	8	8
ECC Support	Yes	Yes
PCIe Lanes	80	80

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Advanced Features

Neither processor supports overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Both support VT-x, VT-d virtualization. Direct competitor: Xeon Gold 5420+ rivals EPYC 9354; Xeon Gold 6421N rivals EPYC 9354.

Feature	Xeon Gold 5420+	Xeon Gold 6421N
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	No
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d	VT-x, VT-d

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Value Analysis

At launch, the Xeon Gold 5420+ was priced at $1848, while the Xeon Gold 6421N came in at $2368. On launch pricing ($1848 vs $2368), Xeon Gold 5420+ was $520 cheaper. In terms of value on MSRP (PassMark points per dollar), the Xeon Gold 5420+ delivers 31.5 pts/$ vs 24.8 pts/$ for the Xeon Gold 6421N — making the Xeon Gold 5420+ the 23.7% better value option.

Feature	Xeon Gold 5420+	Xeon Gold 6421N
MSRP	$1848-22%	$2368
Performance per Dollar	31.5+27%	24.8
Release Date	2023	2023

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