Xeon Gold 6421N vs Xeon Gold 6448Y

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 6421N vs Xeon Gold 6448Y 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 6421N vs Xeon Gold 6448Y: 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 6421N

2023

Why buy it

✅Costs $1,215 less on MSRP ($2,368 MSRP vs $3,583 MSRP).
✅Delivers 47.2% more PassMark for each dollar spent, at 24.8 vs 16.9 PassMark/$ ($2,368 MSRP vs $3,583 MSRP).
✅Draws 185W instead of 225W, a 40W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Gold 6448Y across 50 shared CPU benchmark tests.
❌Lower PassMark (58,797 vs 60,449).

Xeon Gold 6448Y

2023

Why buy it

✅Better for gaming: +10.3% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark per dollar, at 16.9 vs 24.8 PassMark/$ ($3,583 MSRP vs $2,368 MSRP).
❌21.6% higher power demand at 225W vs 185W.

Quick Answers

So, is Xeon Gold 6448Y better than Xeon Gold 6421N?

Yes. Xeon Gold 6448Y is the better all-around CPU here. It gives you a 10.3% average FPS lead across 50 shared CPU game tests in our data, 2.8% 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 6448Y is the better pick. According to our tests, it delivers 10.3% 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 Gold 6448Y is the stronger fit. You are getting 2.8% better PassMark, backed by 32 cores and 64 threads.

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

Xeon Gold 6448Y is still the faster CPU overall, but Xeon Gold 6421N is easier to justify if budget matters more than peak performance. Xeon Gold 6448Y comes in 51.3% more expensive on MSRP at $3,583 MSRP versus $2,368 MSRP, and it still gives you a 10.3% average FPS lead across 50 shared CPU game tests in our data. Xeon Gold 6421N is also 47.2% better value on MSRP (24.8 vs 16.9 PassMark/$), 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 6448Y makes more sense long term for 2026 and beyond. You are getting more multi-core headroom with 32 cores / 64 threads instead of 32/64. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Xeon Gold 6421N vs Xeon Gold 6448Y Technical Specifications

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

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.

Xeon Gold 6448Y

The Xeon Gold 6448Y 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 2.1 GHz, with boost up to 4.1 GHz. L3 cache: 60 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 225 Watt. Memory support: DDR5-4800, DDR5-4400. Passmark benchmark score: 60,449 points. Launch price was $3,583.

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Processing Power

Both the Xeon Gold 6421N and Xeon Gold 6448Y share an identical 32-core/64-thread configuration. Boost clocks reach 3.6 GHz on the Xeon Gold 6421N versus 4.1 GHz on the Xeon Gold 6448Y — a 13% clock advantage for the Xeon Gold 6448Y (base: 1.8 GHz vs 2.1 GHz). Both are built on the Sapphire Rapids (2023−2024) architecture using a Intel 7 nm process. In PassMark, the Xeon Gold 6421N scores 58,797 against the Xeon Gold 6448Y's 60,449 — a 2.8% lead for the Xeon Gold 6448Y. Both processors carry 60 MB of L3 cache.

Feature	Xeon Gold 6421N	Xeon Gold 6448Y
Cores / Threads	32 / 64	32 / 64
Boost Clock	3.6 GHz	4.1 GHz+14%
Base Clock	1.8 GHz	2.1 GHz+17%
L3 Cache	60 MB	60 MB
L2 Cache	2 MB (per core)	2 MB (per core)
Process	Intel 7 nm	Intel 7 nm
Architecture	Sapphire Rapids (2023−2024)	Sapphire Rapids (2023−2024)
PassMark	58,797	60,449+3%

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Memory & Platform

Both processors use the LGA4677 socket with PCIe 5.0. 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 6421N) and C741 (Xeon Gold 6448Y).

Feature	Xeon Gold 6421N	Xeon Gold 6448Y
Socket	LGA4677	LGA4677
PCIe Generation	PCIe 5.0	PCIe 5.0
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 6421N rivals EPYC 9354; Xeon Gold 6448Y rivals EPYC 9354.

Feature	Xeon Gold 6421N	Xeon Gold 6448Y
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 6421N was priced at $2368, while the Xeon Gold 6448Y came in at $3583. On launch pricing ($2368 vs $3583), Xeon Gold 6421N was $1215 cheaper. In terms of value on MSRP (PassMark points per dollar), the Xeon Gold 6421N delivers 24.8 pts/$ vs 16.9 pts/$ for the Xeon Gold 6448Y — making the Xeon Gold 6421N the 38.2% better value option.

Feature	Xeon Gold 6421N	Xeon Gold 6448Y
MSRP	$2368-34%	$3583
Performance per Dollar	24.8+47%	16.9
Release Date	2023	2023

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