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Intel Core Ultra 7 155H vs Intel Core Ultra 7 255HX: Comparison
Core Ultra 7 155H vs Core Ultra 7 255HX total cores compared
These two are close on paper, and total cores is the only measure that separates them at all: Core Ultra 7 155H 16 against Core Ultra 7 255HX 20. The benchmark result agrees. Cinebench 2024 (Single-Core) puts Core Ultra 7 255HX 22% ahead, 131 against 102. L3 cache runs the same way, 24 MB on the Core Ultra 7 155H versus 30 MB on the Core Ultra 7 255HX, another win for Core Ultra 7 255HX. Socket is not the same on both, FCBGA2049 on the Core Ultra 7 155H versus BGA 2114 on the Core Ultra 7 255HX.
Core Ultra 7 155H vs Core Ultra 7 255HX: which one fits your build
The Core Ultra 7 155H suits everyday laptop computing and on-device AI features, though it is not the pick for gaming laptops and heavy sustained workloads. Buy the Core Ultra 7 255HX for high-end gaming laptops and mobile content creation, though it is the wrong buy for thin-and-light laptops and battery-life-focused use. Our rating of the Core Ultra 7 155H (8.5/10): the Intel Core Ultra 7 155H is the value entry point of Intel's Core Ultra 7 H-series pair, a strong pick for premium laptops that don't need the 165H's extra clock. Our rating of the Core Ultra 7 255HX (8.8/10): the Intel Core Ultra 7 255HX brings desktop-class core counts to a mobile package, suited to high-end gaming and creator laptops that can handle the higher TDP.
Frequently asked questions
Do the Core Ultra 7 155H and Core Ultra 7 255HX differ on performance cores?
Yes. Performance Cores reads 6 on the Core Ultra 7 155H versus 8 on the Core Ultra 7 255HX.
Is the Integrated Graphics the same on the Core Ultra 7 155H and Core Ultra 7 255HX?
It is. Both are listed at Yes, so it is not a reason to pick one over the other.
Specs and benchmarks
Form Factor
- Intel Core Ultra 7 155H
- Laptop
- Intel Core Ultra 7 255HX
- Laptop
Codename
- Intel Core Ultra 7 155H
- Meteor Lake
- Intel Core Ultra 7 255HX
- Arrow Lake
Release Year
- Intel Core Ultra 7 155H
- 2023
- Intel Core Ultra 7 255HX
- 2025
TDP
- Intel Core Ultra 7 155H
- 28 W
- Intel Core Ultra 7 255HX
- 55 W
iGPU
- Intel Core Ultra 7 155H
- Intel Arc graphics
- Intel Core Ultra 7 255HX
- Intel Graphics (Xe-LPG, reduced EU count)
Market Segment
- Intel Core Ultra 7 155H
- Laptop
- Intel Core Ultra 7 255HX
- Laptop
Microarchitecture
- Intel Core Ultra 7 155H
- Meteor Lake
- Intel Core Ultra 7 255HX
- Arrow Lake-HX
Socket
- Intel Core Ultra 7 155H
- FCBGA2049
- Intel Core Ultra 7 255HX
- BGA 2114 (BGA, soldered)
Process Node
- Intel Core Ultra 7 155H
- 4 nm
- Intel Core Ultra 7 255HX
- 3 nm
Total Cores
- Intel Core Ultra 7 155H
- 16
- Intel Core Ultra 7 255HX
- 20Best
Performance Cores
- Intel Core Ultra 7 155H
- 6
- Intel Core Ultra 7 255HX
- 8Best
Efficiency Cores
- Intel Core Ultra 7 155H
- 10
- Intel Core Ultra 7 255HX
- 12Best
Total Threads
- Intel Core Ultra 7 155H
- 22Best
- Intel Core Ultra 7 255HX
- 20
SMT Enabled
- Intel Core Ultra 7 155H
- Yes
- Intel Core Ultra 7 255HX
- No
P-Core Base Clock
- Intel Core Ultra 7 155H
- 1.4 GHz
- Intel Core Ultra 7 255HX
- 2.4 GHz
P-Core Boost Clock
- Intel Core Ultra 7 155H
- 4.8 GHz
- Intel Core Ultra 7 255HX
- 5.2 GHz
L3 Cache
- Intel Core Ultra 7 155H
- 24 MB-20%
- Intel Core Ultra 7 255HX
- 30 MBBest
Base Power
- Intel Core Ultra 7 155H
- 28 W
- Intel Core Ultra 7 255HX
- 55 W
Max Turbo Power
- Intel Core Ultra 7 155H
- 115 W
- Intel Core Ultra 7 255HX
- 160 W
Memory Type
- Intel Core Ultra 7 155H
- DDR5, LPDDR5/X
- Intel Core Ultra 7 255HX
- DDR5
Integrated Graphics
- Intel Core Ultra 7 155H
- Yes
- Intel Core Ultra 7 255HX
- Yes
NPU Peak TOPS
- Intel Core Ultra 7 155H
- 11 TOPS (NPU 3)
- Intel Core Ultra 7 255HX
- 13 TOPS (NPU 3)
Benchmarks
- General CPU
Cinebench 2024 (Single-Core)
- Intel Core Ultra 7 155H
- 102-22%
- Intel Core Ultra 7 255HX
- 131Best
Renders a 3D scene on one core. Shows how quick the CPU feels in everyday apps and games.
Geekbench 6 (Multi-Core)
- Intel Core Ultra 7 155H
- 12,343-30%
- Intel Core Ultra 7 255HX
- 17,673Best
Everyday tasks like photo editing, compression and compiling, run on all cores.
Geekbench 6 (Single-Core)
- Intel Core Ultra 7 155H
- 2,392-19%
- Intel Core Ultra 7 255HX
- 2,946Best
The same everyday tasks on one core. Tracks how responsive the PC feels.
Which one should you pick?
Choose 155H if you already have it on hand or find it at a lower price.
Choose 255HX if you want the higher L3 cache (30 MB vs 24 MB), the higher cinebench 2024 (Single-Core) (131 vs 102) and the higher geekbench 6 (Multi-Core) (17,673 vs 12,343).
Verdict
Intel Core Ultra 7 155H
8.5 / 10 Expert Rating
The Intel Core Ultra 7 155H is the value entry point of Intel's Core Ultra 7 H-series pair, a strong pick for premium laptops that don't need the 165H's extra clock.
Intel Core Ultra 7 255HX
8.8 / 10 Expert Rating
The Intel Core Ultra 7 255HX brings desktop-class core counts to a mobile package, suited to high-end gaming and creator laptops that can handle the higher TDP.
More comparisons in Processors (CPUs)
- Intel Core Ultra 7 155H vs Intel Core Ultra 7 165H
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- Intel Core Ultra 5 245HX vs Intel Core Ultra 7 155H
- Intel Core Ultra 7 255HX vs Intel Core Ultra 9 285H