Intel Core i5-1235U vs Intel Core i7-1255U

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i5-1235U or Intel Core i5-1235U – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i5-1235U features 10 processor cores and has the capability to manage 12 threads concurrently.
It was released in Q1/2022 and belongs to the 12 generation of the Intel Core i5 series.
To use the Intel Core i5-1235U, you'll need a motherboard with a BGA 1744 socket.
The Intel Core i7-1255U features 10 processor cores and has the capability to manage 12 threads concurrently.
It was released in Q1/2022 and belongs to the 12 generation of the Intel Core i7 series.
To use the Intel Core i7-1255U, you'll need a motherboard with a BGA 1744 socket.
Intel Core i5 Family Intel Core i7
Mobile Segment Mobile
Intel Core i5-1235U Name Intel Core i7-1255U
Intel Core i 1200P/1200U Group Intel Core i 1200P/1200U
12 Generation 12
 
 

CPU Cores and Base Frequency

The Intel Core i5-1235U has 10 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the A-Core is 1.3 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
Processors with hybrid (big.LITTLE) architecture strike a balance between performance and power efficiency, making them ideal for mobile devices.
The Intel Core i7-1255U has 10 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the A-Core is 1.7 GHz.
4.4 GHz A-Core Frequency Turbo 4.7 GHz
3.3 GHz B-Core Frequency Turbo 3.5 GHz
1.3 GHz A-Core Frequency 1.7 GHz
0.9 GHz B-Core Frequency 1.2 GHz
10 CPU Cores 10
hybrid (big.LITTLE) Core architecture hybrid (big.LITTLE)
8x Gracemont Cores B 8x Gracemont
Yes Hyperthreading Yes
2x Golden Cove Cores A 2x Golden Cove
No Overclocking No
12 Threads 12
 
 

Internal Graphics

The Intel Core i5-1235U has integrated graphics, called iGPU for short.
Specifically, the Intel Core i5-1235U uses the Intel Iris Xe Graphics 80 (Alder Lake), which has 640 texture shaders
and 80 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i7-1255U has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-1255U uses the Intel Iris Xe Graphics 96 (Alder Lake), which has 768 texture shaders
and 96 execution units.
1.2 GHz GPU (Turbo) 1.25 GHz
Q1/2022 Release date Q1/2022
80 Execution units 96
12.1 Direct X 12.1
-- Max. displays --
640 Shaders 768
Intel Iris Xe Graphics 80 (Alder Lake) GPU name Intel Iris Xe Graphics 96 (Alder Lake)
0.35 GHz GPU frequency 0.35 GHz
32.0 GB Max. GPU Memory 32.0 GB
13 Generation 13
10 nm Technology 10 nm
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
Decode VP8 Decode
Decode / Encode VP9 Decode / Encode
Decode / Encode AVC Decode / Encode
Decode / Encode h264 Decode / Encode
Decode / Encode JPEG Decode / Encode
Decode VC-1 Decode
Decode AV1 Decode
Decode / Encode h265 / HEVC (8 bit) Decode / Encode
Decode / Encode h265 / HEVC (10 bit) Decode / Encode
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 76.8 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
Yes AES-NI Yes
64.0 GB Max. Memory 64.0 GB
76.8 GB/s Bandwidth 76.8 GB/s
DDR4-3200, LPDDR4X-4266, DDR5-4800, LPDDR5-5200 Memory type DDR4-3200, LPDDR4X-4266, DDR5-4800, LPDDR5-5200
pci PCIe pci
2 Memory channels 2
No ECC No
 
 

Thermal Management

The processor has a thermal design power (TDP) of 15 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
55 W TDP (PL2) 55 W
15 W TDP (PL1 / PBP) 15 W
100 °C Tjunction max 100 °C
 
 

Technical details

The Intel Core i5-1235U is manufactured using a 10 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 12.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-1255U is manufactured using a 10 nm process.
Technical data sheet Documents Technical data sheet
Q1/2022 Release date Q1/2022
BGA 1744 Socket BGA 1744
6.5 MB L2-Cache 6.5 MB
12.0 MB L3-Cache 12.0 MB
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux, Windows 11
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- Part Number --
Alder Lake U Architecture Alder Lake U
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
-- Release price --
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
Monolithic Chip design Monolithic
10 nm Technology 10 nm
 
 

Benchmarks

Estimated results for PassMark CPU Mark

Intel Core i7-1255U
10C 12T @ 1.7 GHz
13905
13905
Intel Core i5-1235U
10C 12T @ 1.3 GHz
13681
13681

Cinebench R23 (Multi-Core)

Intel Core i5-1235U
10C 12T @ 1.3 GHz
9378
9378
Intel Core i7-1255U
10C 12T @ 1.7 GHz
7545
7545

Geekbench 6 (Multi-Core)

Intel Core i5-1235U
10C 12T @ 1.3 GHz
7764
7764
Intel Core i7-1255U
10C 12T @ 1.7 GHz
6908
6908

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-1255U
10C 12T @ 1.7 GHz
7612
7612
Intel Core i5-1235U
10C 12T @ 1.3 GHz
4132
4132

Geekbench 6 (Single-Core)

Intel Core i7-1255U
10C 12T @ 1.7 GHz
2136
2136
Intel Core i5-1235U
10C 12T @ 1.3 GHz
2089
2089

Cinebench R23 (Single-Core)

Intel Core i7-1255U
10C 12T @ 1.7 GHz
1761
1761
Intel Core i5-1235U
10C 12T @ 1.3 GHz
1668
1668

Geekbench 5, 64bit (Single-Core)

Intel Core i7-1255U
10C 12T @ 1.7 GHz
1603
1603
Intel Core i5-1235U
10C 12T @ 1.3 GHz
1479
1479