Core Ultra 7 155H vs Xeon Gold 6143

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 Ultra 7 155H vs Xeon Gold 6143 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 Ultra 7 155H vs Xeon Gold 6143: Pros, Cons & Final Verdict

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

Core Ultra 7 155H

2023

Why buy it

✅Better for gaming: +20.2% higher average FPS across 50 shared CPU benchmark tests.
✅Newer platform on FCBGA2049 with DDR5 support instead of LGA3647 and DDR4.
✅100+% more PCIe lanes (28 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel Arc Graphics (8 Xe-cores), while Xeon Gold 6143 needs a discrete GPU.
✅Includes a boxed cooler (Laptop Integrated), unlike Xeon Gold 6143.

Trade-offs

❌Lower PassMark (24,705 vs 24,786).
❌Less compelling for workstation-style loads than Xeon Gold 6143, which brings 16 cores / 32 threads.

Xeon Gold 6143

2017

Why buy it

✅+0.3% higher PassMark.
✅Better for workstations and heavier parallel workloads: 16 cores / 32 threads.

Trade-offs

❌Worse for gaming: lower average FPS than Core Ultra 7 155H across 50 shared CPU benchmark tests.
❌Launch MSRP is still $342 MSRP, while Core Ultra 7 155H mostly shows up through inconsistent older-market listings.
❌Older platform position on LGA3647 with DDR4, while Core Ultra 7 155H moves to FCBGA2049 and DDR5.
❌No integrated graphics, while Core Ultra 7 155H can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core Ultra 7 155H.

Quick Answers

So, is Xeon Gold 6143 better than Core Ultra 7 155H?

Not really, because they are built for different jobs. Xeon Gold 6143 makes more sense for workstation-style multi-core throughput, while Core Ultra 7 155H 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 6143 is the stronger fit. You are getting 0.3% better PassMark, backed by 16 cores and 32 threads.

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

Xeon Gold 6143 is the better buy right now. Xeon Gold 6143 comes in at an unclear MSRP at $342 MSRP versus unclear MSRP, and it still gives you 0.3% better PassMark. The compromise is that Core Ultra 7 155H is still the better pure gaming CPU with a 20.2% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (72.5 vs 0.0 PassMark/$), 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 Ultra 7 155H makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2017) and a healthier platform with FCBGA2049 and DDR5 instead of LGA3647. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core Ultra 7 155H vs Xeon Gold 6143 Technical Specifications

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

Core Ultra 7 155H

The Core Ultra 7 155H is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Meteor Lake-H (2023) architecture. It features 16 cores and 22 threads. Base frequency is 3.8 GHz, with boost up to 4.8 GHz. L3 cache: 24 MB (total). L2 cache: 2 MB (per core). Built on 7 nm process technology. Socket: FCBGA2049. Thermal design power (TDP): + 24 MB. Memory support: DDR5. Passmark benchmark score: 24,705 points. Launch price was $503.

Xeon Gold 6143

The Xeon Gold 6143 is manufactured by Intel. It was released in 2015-01-01. It features 16 cores and 32 threads. Base frequency is 2.8 GHz, with boost up to 4 GHz. L3 cache: 22 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 205 Watt. Memory support: DDR4-2666. Passmark benchmark score: 24,786 points. Launch price was $800.

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Processing Power

The Core Ultra 7 155H packs 16 cores / 22 threads, matching the Xeon Gold 6143's 16 cores. Boost clocks reach 4.8 GHz on the Core Ultra 7 155H versus 4 GHz on the Xeon Gold 6143 — a 18.2% clock advantage for the Core Ultra 7 155H (base: 3.8 GHz vs 2.8 GHz). The Core Ultra 7 155H is built on the Meteor Lake-H (2023) architecture. In PassMark, the Core Ultra 7 155H scores 24,705 against the Xeon Gold 6143's 24,786 — a 0.3% lead for the Xeon Gold 6143. L3 cache: 24 MB (total) on the Core Ultra 7 155H vs 22 MB on the Xeon Gold 6143.

Feature	Core Ultra 7 155H	Xeon Gold 6143
Cores / Threads	16 / 22	16 / 32
Boost Clock	4.8 GHz+20%	4 GHz
Base Clock	3.8 GHz+36%	2.8 GHz
L3 Cache	24 MB (total)+9%	22 MB
L2 Cache	2 MB (per core)	—
Process	7 nm-50%	14 nm
Architecture	Meteor Lake-H (2023)	—
PassMark	24,705	24,786
Cinebench R23 Multi	17,650	—
Geekbench 6 Single	2,384	—
Geekbench 6 Multi	12,433	—

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Memory & Platform

The Core Ultra 7 155H uses the FCBGA2049 socket (PCIe 5.0), while the Xeon Gold 6143 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core Ultra 7 155H	Xeon Gold 6143
Socket	FCBGA2049	LGA3647
PCIe Generation	PCIe 5.0+67%	PCIe 3.0
Max RAM Speed	LPDDR5x-7467, DDR5-5600	—
Max RAM Capacity	96 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	28	—

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Advanced Features

Virtualization: VT-x, VT-d, EPT (Core Ultra 7 155H) / not specified (Xeon Gold 6143). The Core Ultra 7 155H includes integrated graphics (Intel Arc Graphics (8 Xe-cores)), while the Xeon Gold 6143 requires a dedicated GPU. Primary use case: Core Ultra 7 155H targets Thin-and-light Performance / AI. Direct competitor: Core Ultra 7 155H rivals Ryzen 7 8840HS.

Feature	Core Ultra 7 155H	Xeon Gold 6143
Integrated GPU	Yes	—
IGPU Model	Intel Arc Graphics (8 Xe-cores)	—
Unlocked	No	—
AVX-512	No	—
Virtualization	VT-x, VT-d, EPT	—
Target Use	Thin-and-light Performance / AI	—