Core i9-12900HK vs Xeon Gold 6142

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 i9-12900HK vs Xeon Gold 6142 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 i9-12900HK vs Xeon Gold 6142: Pros, Cons & Final Verdict

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

Core i9-12900HK

2022

Why buy it

✅Better for gaming: +21.3% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 45W instead of 150W, a 105W reduction.
✅Newer platform on FCBGA1744 with DDR5 support instead of LGA3647 and DDR4.
✅Integrated graphics onboard with Iris Xe Graphics G7 (96EUs), while Xeon Gold 6142 needs a discrete GPU.
✅Includes a boxed cooler (Laptop Integrated), unlike Xeon Gold 6142.

Trade-offs

❌Less compelling for workstation-style loads than Xeon Gold 6142, which brings 16 cores / 32 threads and 48 PCIe lanes.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon Gold 6142

2017

Why buy it

✅Better for workstations and heavier parallel workloads: 16 cores / 32 threads, plus 48 PCIe lanes vs 28.
✅71.4% more PCIe lanes (48 vs 28) for storage and expansion-heavy builds.
✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-12900HK across 50 shared CPU benchmark tests.
❌Lower PassMark (25,490 vs 25,512).
❌233.3% higher power demand at 150W vs 45W.
❌Older platform position on LGA3647 with DDR4, while Core i9-12900HK moves to FCBGA1744 and DDR5.
❌No integrated graphics, while Core i9-12900HK can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i9-12900HK better than Xeon Gold 6142?

Not really, because they are built for different jobs. Xeon Gold 6142 makes more sense for workstation-style multi-core throughput, while Core i9-12900HK 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 i9-12900HK is the better pick. According to our tests, it delivers 21.3% 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, Core i9-12900HK is the stronger fit. You are getting 0.1% better PassMark, backed by 14 cores and 20 threads.

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

Core i9-12900HK still makes the most sense overall. Core i9-12900HK comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 21.3% average FPS lead across 50 shared CPU game tests in our data.

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

Core i9-12900HK makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2017), a healthier platform with FCBGA1744 and DDR5 instead of LGA3647, and more multi-core headroom with 14 cores / 20 threads instead of 16/32. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-12900HK vs Xeon Gold 6142 Technical Specifications

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

Core i9-12900HK

The Core i9-12900HK is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-H (2022) architecture. It features 14 cores and 20 threads. Base frequency is 2.5 GHz, with boost up to 5 GHz. L3 cache: 24 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 45 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 25,512 points. Launch price was $299.

Xeon Gold 6142

The Xeon Gold 6142 is manufactured by Intel. It was released in 25 April 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 16 cores and 32 threads. Base frequency is 2.6 GHz, with boost up to 3.7 GHz. L3 cache: 22 MB. L2 cache: 16 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 150 Watt. Memory support: DDR4-2666. Passmark benchmark score: 25,490 points. Launch price was $2,946.

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Processing Power

The Core i9-12900HK packs 14 cores / 20 threads, while the Xeon Gold 6142 offers 16 cores / 32 threads — the Xeon Gold 6142 has 2 more cores. Boost clocks reach 5 GHz on the Core i9-12900HK versus 3.7 GHz on the Xeon Gold 6142 — a 29.9% clock advantage for the Core i9-12900HK (base: 2.5 GHz vs 2.6 GHz). The Core i9-12900HK uses the Alder Lake-H (2022) architecture (Intel 7 nm), while the Xeon Gold 6142 uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i9-12900HK scores 25,512 against the Xeon Gold 6142's 25,490 — a 0.1% lead for the Core i9-12900HK. L3 cache: 24 MB (total) on the Core i9-12900HK vs 22 MB on the Xeon Gold 6142.

Feature	Core i9-12900HK	Xeon Gold 6142
Cores / Threads	14 / 20	16 / 32+14%
Boost Clock	5 GHz+35%	3.7 GHz
Base Clock	2.5 GHz	2.6 GHz+4%
L3 Cache	24 MB (total)+9%	22 MB
L2 Cache	1.25 MB (per core)	16 MB+1180%
Process	Intel 7 nm-50%	14 nm
Architecture	Alder Lake-H (2022)	Skylake (server) (2017−2018)
PassMark	25,512	25,490
Cinebench R23 Multi	18,197	—
Geekbench 6 Single	1,938	—
Geekbench 6 Multi	13,317	—

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Memory & Platform

The Core i9-12900HK uses the FCBGA1744 socket (PCIe 5.0), while the Xeon Gold 6142 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i9-12900HK versus 2666 on the Xeon Gold 6142 — the Core i9-12900HK supports 80% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6142 supports up to 768 GB of RAM compared to 64 GB — 1100% more capacity for professional workloads. Memory channels: 2 (Core i9-12900HK) vs 6 (Xeon Gold 6142). PCIe lanes: 28 (Core i9-12900HK) vs 48 (Xeon Gold 6142) — the Xeon Gold 6142 offers 20 more lanes for additional GPUs or NVMe drives. Chipset compatibility: BGA1744 (Core i9-12900HK) and C621 (Xeon Gold 6142).

Feature	Core i9-12900HK	Xeon Gold 6142
Socket	FCBGA1744	LGA3647
PCIe Generation	PCIe 5.0+67%	PCIe 3.0
Max RAM Speed	DDR5-4800, DDR4-3200+80%	2666
Max RAM Capacity	64 GB	768 GB+1100%
RAM Channels	2	6+200%
ECC Support	No	Yes
PCIe Lanes	28	48+71%

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Advanced Features

Only the Core i9-12900HK has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon Gold 6142 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d, EPT (Core i9-12900HK) vs VT-x, VT-d (Xeon Gold 6142). The Core i9-12900HK includes integrated graphics (Iris Xe Graphics G7 (96EUs)), while the Xeon Gold 6142 requires a dedicated GPU. Primary use case: Core i9-12900HK targets Enthusiast Gaming Laptop. Direct competitor: Core i9-12900HK rivals Ryzen 9 6900HX; Xeon Gold 6142 rivals EPYC 7451.

Feature	Core i9-12900HK	Xeon Gold 6142
Integrated GPU	Yes	No
IGPU Model	Iris Xe Graphics G7 (96EUs)	None
Unlocked	Yes	No
AVX-512	No	Yes
Virtualization	VT-x, VT-d, EPT	VT-x, VT-d
Target Use	Enthusiast Gaming Laptop	—