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 6312U 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 6312U: 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: +13.7% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $906 less on MSRP ($739 MSRP vs $1,645 MSRP).
✅Delivers 128.3% more PassMark for each dollar spent, at 58.9 vs 25.8 PassMark/$ ($739 MSRP vs $1,645 MSRP).
✅Draws 150W instead of 185W, a 35W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA4189 and DDR4.

Trade-offs

❌Smaller total L3 cache (30 MB vs 36 MB).
❌Less compelling for workstation-style loads than Xeon Gold 6312U, which brings 24 cores / 48 threads and 64 PCIe lanes.

Xeon Gold 6312U

2021

Why buy it

✅+20% larger total L3 cache (36 MB vs 30 MB).
✅Better for workstations and heavier parallel workloads: 24 cores / 48 threads, plus 64 PCIe lanes vs 20.
✅220% more PCIe lanes (64 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 (42,443 vs 43,528).
❌Lower PassMark per dollar, at 25.8 vs 58.9 PassMark/$ ($1,645 MSRP vs $739 MSRP).
❌23.3% higher power demand at 185W vs 150W.
❌Older platform position on LGA4189 with DDR4, while Core i9-12900KS moves to LGA1700 and DDR5.

Quick Answers

So, is Core i9-12900KS better than Xeon Gold 6312U?

Not really, because they are built for different jobs. Xeon Gold 6312U 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 gaming?

If gaming is the priority, Core i9-12900KS is the better pick. According to our tests, it delivers 13.7% 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, Core i9-12900KS is the stronger fit. You are getting 2.6% better PassMark, backed by 16 cores and 24 threads.

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 $906 cheaper on MSRP at $739 MSRP versus $1,645 MSRP, and it still gives you a 13.7% average FPS lead across 50 shared CPU game tests in our data. It is also 128.3% better value on MSRP (58.9 vs 25.8 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

Which one is more future-proof for 2026 and beyond?

Core i9-12900KS makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2021), a healthier platform with LGA1700 and DDR5 instead of LGA4189, and more multi-core headroom with 16 cores / 24 threads instead of 24/48. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-12900KS vs Xeon Gold 6312U 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 6312U

The Xeon Gold 6312U is manufactured by Intel. It was released in 2015-01-01. It is based on the Ice Lake-SP (2021) architecture. It features 24 cores and 48 threads. Base frequency is 2.4 GHz, with boost up to 3.6 GHz. L3 cache: 36 MB (total). L2 cache: 1 MB (per core). Built on 10 nm process technology. Socket: LGA4189. Thermal design power (TDP): 185 Watt. Memory support: DDR4-3200. Passmark benchmark score: 42,443 points. Launch price was $800.

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Processing Power

The Core i9-12900KS packs 16 cores / 24 threads, while the Xeon Gold 6312U offers 24 cores / 48 threads — the Xeon Gold 6312U has 8 more cores. Boost clocks reach 5.3 GHz on the Core i9-12900KS versus 3.6 GHz on the Xeon Gold 6312U — a 38.2% clock advantage for the Core i9-12900KS (base: 3.4 GHz vs 2.4 GHz). The Core i9-12900KS uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Xeon Gold 6312U uses Ice Lake-SP (2021) (10 nm). In PassMark, the Core i9-12900KS scores 43,528 against the Xeon Gold 6312U's 42,443 — a 2.5% lead for the Core i9-12900KS. L3 cache: 30 MB (total) on the Core i9-12900KS vs 36 MB (total) on the Xeon Gold 6312U.

Feature	Core i9-12900KS	Xeon Gold 6312U
Cores / Threads	16 / 24	24 / 48+50%
Boost Clock	5.3 GHz+47%	3.6 GHz
Base Clock	3.4 GHz+42%	2.4 GHz
L3 Cache	30 MB (total)	36 MB (total)+20%
L2 Cache	1.25 MB (per core)+25%	1 MB (per core)
Process	Intel 7 nm-30%	10 nm
Architecture	Alder Lake-S (2022)	Ice Lake-SP (2021)
PassMark	43,528+3%	42,443
Cinebench R23 Multi	27,796	—
Geekbench 6 Single	2,082	—

🧠

Memory & Platform

The Core i9-12900KS uses the LGA1700 socket (PCIe 5.0), while the Xeon Gold 6312U uses LGA4189 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800 on the Core i9-12900KS versus 3200 on the Xeon Gold 6312U — the Core i9-12900KS supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6312U supports up to 6144 GB of RAM compared to 128 GB — 4700% more capacity for professional workloads. Memory channels: 2 (Core i9-12900KS) vs 8 (Xeon Gold 6312U). PCIe lanes: 20 (Core i9-12900KS) vs 64 (Xeon Gold 6312U) — the Xeon Gold 6312U offers 44 more lanes for additional GPUs or NVMe drives. Chipset compatibility: LGA1700 (Core i9-12900KS) and C621A (Xeon Gold 6312U).

Feature	Core i9-12900KS	Xeon Gold 6312U
Socket	LGA1700	LGA4189
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-4800+50%	3200
Max RAM Capacity	128 GB	6144 GB+4700%
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	20	64+220%

🔧

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 6312U requires a dedicated GPU. Direct competitor: Xeon Gold 6312U rivals EPYC 7413.

Feature	Core i9-12900KS	Xeon Gold 6312U
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 6312U came in at $1645. On launch pricing ($739 vs $1645), Core i9-12900KS was $906 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i9-12900KS delivers 58.9 pts/$ vs 25.8 pts/$ for the Xeon Gold 6312U — making the Core i9-12900KS the 78.2% better value option.

Feature	Core i9-12900KS	Xeon Gold 6312U
MSRP	$739-55%	$1645
Performance per Dollar	58.9+128%	25.8
Release Date	2022	2021

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