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Intel Celeron N5100 vs Intel Core Ultra 7 255H

Last updated: 2026-07-05

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank 2 - 17 %

Intel Celeron N5100

Rank 1 - 100 %

Intel Core Ultra 7 255H

Multi-core performance

Rank 2 - 10 %

Intel Celeron N5100

Rank 1 - 100 %

Intel Core Ultra 7 255H

Geekbench 6 Single-Core
Single-core performance

4C / 4T · 2.80 GHz

468

16C / 16T · 5.10 GHz

2,761

Geekbench 6 Multi-Core
Multi-core performance

4C / 4T · 2.20 GHz

1,286

16C / 16T · 2.00 GHz

14,339

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel UHD Graphics 24 EUs (Jasper Lake)

340

Intel Arc 140T

5,458

More benchmarks

Cinebench 2026 (ST)
218 entries

Cinebench 2026 (MC)
219 entries

Cinebench R23 (SC)
690 entries

Cinebench R23 (MC)
665 entries

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Cinebench R20 (SC)
666 entries

Geekbench 5 (SC)
2,512 entries

Cinebench R20 (MC)
615 entries

Geekbench 5 (MC)
2,483 entries

FP32 SP (iGPU)
2,219 entries

3DMark Timespy (iGPU)
534 entries

PassMark CPU-Mark
2,504 entries

Specifications

At a glance

Wischen	Intel Celeron N5100	Intel Core Ultra 7 255H
Family	Intel Celeron (165)	Intel Core Ultra 7 (31)
CPU group	Intel Celeron N4000/N5000 (6)	Intel Core Ultra 200H (5)
Architecture	Jasper Lake	Arrow Lake H
Technology	10 nm	3 nm
Segment	Notebook	Notebook
Socket	BGA 1338	BGA 2049
Predecessor	Intel Celeron N4100	Intel Core Ultra 7 155H
Successor		Intel Core Ultra X7 358H

CPU Cores and Base Frequency

Wischen	Intel Celeron N5100	Intel Core Ultra 7 255H
CPU Cores / Threads	4 / 4	16 / 16
Hyperthreading / SMT	✗	✗
Core architecture	normal	hybrid (big.LITTLE)
Core Cluster 1:	4x Tremont 1.10 - 2.80 GHz	6x Lion Cove 2.00 - 5.10 GHz
Core Cluster 2:		8x Skymont 1.50 - 4.40 GHz
Core Cluster 3:		2x Crestmont 0.70 - 2.50 GHz
L2-Cache	1.50 MB	6.00 MB
L3-Cache	4.00 MB	24.00 MB
Overclocking	✗	✗

Integrated graphics (iGPU)

Wischen	Intel Celeron N5100	Intel Core Ultra 7 255H
GPU name	Intel UHD Graphics 24 EUs (Jasper Lake)	Intel Arc 140T
GPU frequency	0.35 - 0.85 GHz	0.60 - 2.25 GHz
CUs / Shader	24 / 192	64 / 1024
Raytracing	✗	✓
Max. displays	3	3
Max. GPU Memory	8 GB	32 GB
Technology	10 nm	5 nm
Release date	Q1/2021	Q1/2025

NPU AI performance

Wischen	Intel Celeron N5100	Intel Core Ultra 7 255H
AI hardware		Intel® AI Boost
AI specifications		Intel AI Boost (OpenVINO, WindowsML, DirectML, ONNX RT)
NPU + CPU + iGPU		96 TOPS

Memory & PCIe

Wischen	Intel Celeron N5100	Intel Core Ultra 7 255H
Memory	DDR4-2933 (46.9 GB/s)	LPDDR5X-8400 (134.4 GB/s) DDR5-6400 (102.4 GB/s)
Max. Memory	16 GB	128 GB
Memory channels	2	2
ECC	No	No
PCIe	3.0 x 8	5.0 x 28
PCIe Bandwidth	7.9 GB/s	110.3 GB/s

Thermal Management

Wischen	Intel Celeron N5100	Intel Core Ultra 7 255H
TDP	6 W	28 W
TDP (PL2)	20 W	115 W
TDP up
TDP down	4.8 W	20 W
T. junction max.	105 °C	110 °C

Technical details

Wischen	Intel Celeron N5100	Intel Core Ultra 7 255H
Chip design	Monolithic	Chiplet
AES-NI	✓	✓
Operating systems	Windows 10, Windows 11, Linux	Windows 11, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2	SSE4.1, SSE4.2, AVX2
Release date	Q1/2021	Q1/2025
Release price
Documents	Technical data sheet	Technical data sheet

User Reviews

Your rating

Here you can rate one or both of the processors. The average rating of Intel Celeron N5100 is 3.2 stars (70 ratings), while Intel Core Ultra 7 255H has received 3.6 stars (244 ratings).

Click on the stars to rate one or both processors.

Intel Celeron N5100
4C / 4T · 1.10 - 2.80 GHz

★★★★★

Intel Core Ultra 7 255H
16C / 16T · 2.00 - 5.10 GHz

★★★★★