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Intel Core i5-8265U vs Intel Core Ultra 7 355

Last updated: 2026-06-07

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank 2 - 49 %

Intel Core i5-8265U

Rank 1 - 100 %

Intel Core Ultra 7 355

Multi-core performance

Rank 2 - 30 %

Intel Core i5-8265U

Rank 1 - 100 %

Intel Core Ultra 7 355

Geekbench 6 Single-Core
Single-core performance

4C / 8T · 3.90 GHz

1,286

8C / 8T · 4.70 GHz

2,645

Geekbench 6 Multi-Core
Multi-core performance

4C / 8T · 2.30 GHz

3,267

8C / 8T · 2.30 GHz

11,021

More benchmarks

Cinebench R23 (SC)
690 entries

Cinebench R23 (MC)
665 entries

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Geekbench 5 (SC)
2,512 entries

Geekbench 5 (MC)
2,483 entries

FP32 SP (iGPU)
2,219 entries

Blender 3.1 Benchmark
213 entries

PassMark CPU-Mark
2,504 entries

Blender 2.81 (bmw27)
190 entries

CPU-Z Benchmark 17 (SC)
250 entries

CPU-Z Benchmark 17 (MC)
751 entries

V-Ray CPU-Render
251 entries

Cinebench R15 (SC)
1,113 entries

Cinebench R15 (MC)
1,110 entries

Geekbench 3 (SC)
945 entries

Geekbench 3 (MC)
941 entries

Cinebench R11.5 (SC)
826 entries

Cinebench R11.5 (MC)
837 entries

Cinebench R11.5 iGPU
383 entries

AI performance (NPU)
218 entries

Specifications

At a glance

Wischen	Intel Core i5-8265U	Intel Core Ultra 7 355
Family	Intel Core i5 (336)	Intel Core Ultra 7 (31)
CPU group	Intel Core i 8000U (WL) (8)	Intel Core Ultra 300 (6)
Architecture	Whiskey Lake U	Panther Lake
Technology	14 nm	2 nm
Segment	Notebook	Notebook
Socket	BGA 1356	BGA 2540
Predecessor
Successor

CPU Cores and Base Frequency

Wischen	Intel Core i5-8265U	Intel Core Ultra 7 355
CPU Cores / Threads	4 / 8	8 / 8
Hyperthreading / SMT	✓	✗
Core architecture	normal	hybrid (big.LITTLE)
Core Cluster 1:	4x 1.60 - 3.90 GHz	4x Cougar Cove 2.30 - 4.70 GHz
Core Cluster 2:		4x Darkmont LP 1.70 - 3.50 GHz
L2-Cache		10.00 MB
L3-Cache	6.00 MB	12.00 MB
Overclocking	✗	✗

Integrated graphics (iGPU)

Wischen	Intel Core i5-8265U	Intel Core Ultra 7 355
GPU name	Intel UHD Graphics 620	Intel Xe3 4 Core Graphics 32 EUs (Panther Lake)
GPU frequency	0.30 - 1.10 GHz	0.00 - 2.50 GHz
CUs / Shader	24 / 192	32 / 512
Raytracing	✗	✓
Max. displays	3	4
Max. GPU Memory	16 GB	128 GB
Technology	14 nm	3 nm
Release date	Q3/2016	Q1/2026

NPU AI performance

Wischen	Intel Core i5-8265U	Intel Core Ultra 7 355
AI hardware		Intel® AI Boost
AI specifications		Intel AI Boost NPU 5 @ 49 TOPS
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Core i5-8265U	Intel Core Ultra 7 355
Memory	DDR4-2400 (38.4 GB/s)	LPDDR5X-7467 (119.5 GB/s) DDR5-6400 (102.4 GB/s)
Max. Memory	32 GB	128 GB
Memory channels	2	2
ECC	No	No
PCIe	3.0 x 16	5.0 x 12
PCIe Bandwidth	15.8 GB/s	47.3 GB/s

Thermal Management

Wischen	Intel Core i5-8265U	Intel Core Ultra 7 355
TDP	15 W	25 W
TDP (PL2)
TDP up		55 W
TDP down		12 W
T. junction max.		100 °C

Technical details

Wischen	Intel Core i5-8265U	Intel Core Ultra 7 355
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, AVX2	SSE4.1, SSE4.2, AVX2
Release date	Q3/2018	Q1/2026
Release price	385 $
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 Core i5-8265U is 3.8 stars (86 ratings), while Intel Core Ultra 7 355 has received 3.3 stars (16 ratings).

Click on the stars to rate one or both processors.

Intel Core i5-8265U
4C / 8T · 1.60 - 3.90 GHz

★★★★★

Intel Core Ultra 7 355
8C / 8T · 2.30 - 4.70 GHz

★★★★★