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.

Core i9-12900KS vs Xeon Gold 6538N 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.

Core i9-12900KS vs Xeon Gold 6538N: Pros, Cons & Final Verdict

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

Core i9-12900KS

2022

Why buy it

✅Better for gaming: +22.3% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $2,612 less on MSRP ($739 MSRP vs $3,351 MSRP).
✅Delivers 339.6% more PassMark for each dollar spent, at 58.9 vs 13.4 PassMark/$ ($739 MSRP vs $3,351 MSRP).
✅Draws 150W instead of 205W, a 55W reduction.
✅Integrated graphics onboard with UHD 770, while Xeon Gold 6538N needs a discrete GPU.

Trade-offs

❌Lower PassMark (43,528 vs 44,895).
❌Smaller total L3 cache (30 MB vs 60 MB).
❌Less compelling for workstation-style loads than Xeon Gold 6538N, which brings 32 cores / 64 threads and 80 PCIe lanes.

Xeon Gold 6538N

2023

Why buy it

✅+3.1% higher PassMark.
✅+100% larger total L3 cache (60 MB vs 30 MB).
✅Better for workstations and heavier parallel workloads: 32 cores / 64 threads, plus 80 PCIe lanes vs 20.
✅300% more PCIe lanes (80 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-12900KS across 50 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 13.4 vs 58.9 PassMark/$ ($3,351 MSRP vs $739 MSRP).
❌36.7% higher power demand at 205W vs 150W.
❌No integrated graphics, while Core i9-12900KS can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i9-12900KS better than Xeon Gold 6538N?

Not really, because they are built for different jobs. Xeon Gold 6538N makes more sense for workstation-style multi-core throughput, while Core i9-12900KS is the more practical desktop choice for gaming, platform cost, and everyday use.

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

For streaming, content creation, and heavier multitasking, Xeon Gold 6538N is the stronger fit. You are getting 3.1% better PassMark, backed by 32 cores and 64 threads. It also has the larger cache pool with 100% larger total L3 cache (60 MB vs 30 MB).

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

Core i9-12900KS is the better buy right now. Core i9-12900KS comes in $2,612 cheaper on MSRP at $739 MSRP versus $3,351 MSRP, and it still gives you a 22.3% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon Gold 6538N is still stronger for heavier multi-core work with 3.1% better PassMark. It is also 339.6% better value on MSRP (58.9 vs 13.4 PassMark/$), 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 6538N makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2022), 100% larger total L3 cache (60 MB vs 30 MB), and more multi-core headroom with 32 cores / 64 threads instead of 16/24. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i9-12900KS vs Xeon Gold 6538N Technical Specifications

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

Core i9-12900KS

The Core i9-12900KS is manufactured by Intel. It was released in 5 April 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 16 cores and 24 threads. Base frequency is 3.4 GHz, with boost up to 5.3 GHz. L3 cache: 30 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 150 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 43,528 points. Launch price was $499.

Xeon Gold 6538N

The Xeon Gold 6538N is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Emerald Rapids (2023) 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 (total). L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 205 Watt. Memory support: DDR5-5200. Passmark benchmark score: 44,895 points. Launch price was $3,351.

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Processing Power

The Core i9-12900KS packs 16 cores / 24 threads, while the Xeon Gold 6538N offers 32 cores / 64 threads — the Xeon Gold 6538N has 16 more cores. Boost clocks reach 5.3 GHz on the Core i9-12900KS versus 4.1 GHz on the Xeon Gold 6538N — a 25.5% clock advantage for the Core i9-12900KS (base: 3.4 GHz vs 2.1 GHz). The Core i9-12900KS uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Xeon Gold 6538N uses Emerald Rapids (2023) (Intel 7 nm). In PassMark, the Core i9-12900KS scores 43,528 against the Xeon Gold 6538N's 44,895 — a 3.1% lead for the Xeon Gold 6538N. L3 cache: 30 MB (total) on the Core i9-12900KS vs 60 MB (total) on the Xeon Gold 6538N.

Feature	Core i9-12900KS	Xeon Gold 6538N
Cores / Threads	16 / 24	32 / 64+100%
Boost Clock	5.3 GHz+29%	4.1 GHz
Base Clock	3.4 GHz+62%	2.1 GHz
L3 Cache	30 MB (total)	60 MB (total)+100%
L2 Cache	1.25 MB (per core)	2 MB (per core)+60%
Process	Intel 7 nm	Intel 7 nm
Architecture	Alder Lake-S (2022)	Emerald Rapids (2023)
PassMark	43,528	44,895+3%
Cinebench R23 Multi	27,796	—
Geekbench 6 Single	2,082	—

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Memory & Platform

The Core i9-12900KS uses the LGA1700 socket (PCIe 5.0), while the Xeon Gold 6538N uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-4800 memory speed. The Xeon Gold 6538N supports up to 4096 GB of RAM compared to 128 GB — 3100% more capacity for professional workloads. Memory channels: 2 (Core i9-12900KS) vs 8 (Xeon Gold 6538N). PCIe lanes: 20 (Core i9-12900KS) vs 80 (Xeon Gold 6538N) — the Xeon Gold 6538N offers 60 more lanes for additional GPUs or NVMe drives. Chipset compatibility: LGA1700 (Core i9-12900KS) and C741 (Xeon Gold 6538N).

Feature	Core i9-12900KS	Xeon Gold 6538N
Socket	LGA1700	LGA4677
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR5-4800	4800
Max RAM Capacity	128 GB	4096 GB+3100%
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	20	80+300%

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Advanced Features

Only the Core i9-12900KS 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. Both support VT-x, VT-d virtualization. The Core i9-12900KS includes integrated graphics (UHD 770), while the Xeon Gold 6538N requires a dedicated GPU. Direct competitor: Xeon Gold 6538N rivals EPYC 9334.

Feature	Core i9-12900KS	Xeon Gold 6538N
Integrated GPU	Yes	No
IGPU Model	UHD 770	None
Unlocked	Yes	No
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d	VT-x, VT-d

💰

Value Analysis

At launch, the Core i9-12900KS was priced at $739, while the Xeon Gold 6538N came in at $3351. On launch pricing ($739 vs $3351), Core i9-12900KS was $2612 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i9-12900KS delivers 58.9 pts/$ vs 13.4 pts/$ for the Xeon Gold 6538N — making the Core i9-12900KS the 125.9% better value option.

Feature	Core i9-12900KS	Xeon Gold 6538N
MSRP	$739-78%	$3351
Performance per Dollar	58.9+340%	13.4
Release Date	2022	2023

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