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Intel Core Ultra 7 155U vs Intel Core i3-4340

Last updated: 2026-07-03

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank ?

Intel Core Ultra 7 155U

Rank ?

Intel Core i3-4340

Multi-core performance

Rank 1 - 100 %

Intel Core Ultra 7 155U

Rank 2 - 21 %

Intel Core i3-4340

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake)

1,935

Intel HD Graphics 4600

368

More benchmarks

Cinebench 2024 (SC)
427 entries

Cinebench 2024 (MC)
422 entries

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

3DMark Timespy (iGPU)
534 entries

PassMark CPU-Mark
2,504 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

Specifications

At a glance

Wischen	Intel Core Ultra 7 155U	Intel Core i3-4340
Family	Intel Core Ultra 7 (31)	Intel Core i3 (205)
CPU group	Intel Core Ultra 100U (7)	Intel Core i 4000 (64)
Architecture	Meteor Lake U	Haswell S
Technology	7 nm	22 nm
Segment	Notebook	Desktop
Socket	BGA 2049	LGA 1150
Predecessor
Successor	Intel Core Ultra 7 255U

CPU Cores and Base Frequency

Wischen	Intel Core Ultra 7 155U	Intel Core i3-4340
CPU Cores / Threads	12 / 14	2 / 4
Hyperthreading / SMT	✓	✓
Core architecture	hybrid (big.LITTLE)	normal
Core Cluster 1:	2x Redwood Cove 1.70 - 4.80 GHz	2x 3.60 GHz
Core Cluster 2:	8x Crestmont 1.20 - 3.80 GHz
Core Cluster 3:	2x Crestmont 0.70 - 2.10 GHz
L2-Cache	12.00 MB
L3-Cache		4.00 MB
Overclocking	✗	✗

Integrated graphics (iGPU)

Wischen	Intel Core Ultra 7 155U	Intel Core i3-4340
GPU name	Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake)	Intel HD Graphics 4600
GPU frequency	0.60 - 1.95 GHz	0.35 - 1.15 GHz
CUs / Shader	64 / 512	20 / 160
Raytracing	✓	✗
Max. displays	4	3
Max. GPU Memory	32 GB	2 GB
Technology	5 nm	22 nm
Release date	Q4/2023	Q2/2013

NPU AI performance

Wischen	Intel Core Ultra 7 155U	Intel Core i3-4340
AI hardware	Intel® AI Boost
AI specifications	Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT)
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Core Ultra 7 155U	Intel Core i3-4340
Memory	LPDDR5X-7500 (120.0 GB/s) DDR5-5600 (89.6 GB/s)	DDR3L-1600 (25.6 GB/s) DDR3-1600 (25.6 GB/s) DDR3L-1333 (21.3 GB/s) DDR3-1333 (21.3 GB/s)
Max. Memory	96 GB	32 GB
Memory channels	2	2
ECC	No	Yes
PCIe	4.0 x 20	3.0 x 16
PCIe Bandwidth	39.4 GB/s	15.8 GB/s

Thermal Management

Wischen	Intel Core Ultra 7 155U	Intel Core i3-4340
TDP	15 W	54 W
TDP (PL2)	57 W
TDP up	28 W
TDP down	12 W
T. junction max.	110 °C

Technical details

Wischen	Intel Core Ultra 7 155U	Intel Core i3-4340
Chip design	Chiplet	Monolithic
AES-NI	✓	✓
Operating systems	Windows 11, Linux	Windows 10, 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	Q4/2023	Q3/2013
Release price		157 $
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 Ultra 7 155U is 2.9 stars (143 ratings), while Intel Core i3-4340 has received 5.0 stars (3 ratings).

Click on the stars to rate one or both processors.

Intel Core Ultra 7 155U
12C / 14T · 1.70 - 4.80 GHz

★★★★★

Intel Core i3-4340
2C / 4T · 3.60 GHz

★★★★★