Intel Core i7-1255U

Specifications Benchmarks Synonyms

Specifications

Technical data

CPU generation and family

CPU group
Intel Core i 1200P/1200U
Family
Intel Core i7
Generation
12
Name
Intel Core i7-1255U
Predecessor
—
Segment
Mobile
Successor
—

CPU Cores and Base Frequency

A-Core
2x Golden Cove
B-Core
8x Gracemont
Base Frequency
1.7 GHz
C-Core
—
Core architecture
hybrid (big.LITTLE)
CPU Cores
10
CPU Threads
12
Hyperthreading / SMT
Yes
Overclocking
No
Turbo Frequency (1 Core)
4.7 GHz
Turbo Frequency (10 Cores)
2.7 GHz

Internal Graphics

DirectX Version
12.1
Execution units
96
Generation
13
GPU Frequency
350 MHz
GPU name
Intel Iris Xe Graphics 96 (Alder Lake)
GPU Turbo
1250 MHz
Max. displays
4
Max. GPU Memory
64 GB
Release date
Q1/2022
Shader
768
Technology
10 nm

Hardware codec support

AV1
Decode
H.264 / AVC
Decode / Encode
h265 / HEVC (8 bit)
Decode / Encode
h265 / HEVC (10 bit)
Decode / Encode
JPEG
Decode / Encode
VC-1
Decode
VP8
Decode
VP9
Decode / Encode

Memory & PCIe

ECC
No
Max. Memory
64 GB
Memory channels
2
Memory type
DDR4-3200DDR5-4800LPDDR4X-4266LPDDR5-5200
PCIe
4.0 x 28

Encryption

AES-NI
Yes

Thermal Management

Maximum Operating Temperature
100 °C
TDP (PL1, legacy label)
15 W
TDP (PL2)
55 W
TDP down
—
TDP up
—

Technical details

Architecture
Alder Lake U
Instruction set (ISA)
x86-64 (64 bit)
ISA extensions
SSE4.1, SSE4.2, AVX2
L2-Cache
6.5 MB
L3-Cache
12 MB
Part Number
—
Release date
Q1/2022
Socket
BGA 1744
Technology
10 nm
Virtualization
VT-x, VT-x EPT, VT-d

Positions in all rankings

Common positions Intel Core i7-1255U CPU in popular benchmarks, for comparison with other models.

iGPU - FP32 Performance (Single-precision GFLOPS)

106 place

Benchmarks

Performance tests CPU

Published results: 7

Blender Cycles

Each row uses one Blender version, operating system and compute backend.

Test and settings	Intel Core i7-1255U
Blender 4.0.0 / CPU / Windows	76.175019 samples/min Submissions: 10
Blender 4.2.0 / CPU / Windows	78.804508 samples/min Submissions: 60
Blender 4.3.0 / CPU / Windows	72.096635 samples/min Submissions: 25
Blender 4.4.0 / CPU / Windows	72.326994 samples/min Submissions: 7
Blender 4.5.0 / CPU / Windows	73.828397 samples/min Submissions: 16
Blender 5.1.0 / CPU / Windows	71.046234 samples/min Submissions: 10
Blender 5.2.0 / CPU / Windows	72.500587 samples/min Submissions: 5

Individual system tests

Results were obtained on the reported systems. Test versions and settings remain separate; incomplete conditions do not support calculated model performance differences.

RandomX / XMRig 6.21.0 / 1M / 8 threads / linux

Result	Reported conditions
2858.106447 H/s	RandomX / XMRig 6.21.0 / 1M / 8 threads / linux System RAM: 16 GB OS: Linux x86_64 Motherboard: LENOVO / 21E60050UK Duration: 349.882 s User-submitted run; tuning and power settings are incomplete.

Compare the scores of popular benchmarks Intel Core i7-1255U with other processors to understand the real speed of the CPU when processing content.

Tests include mathematical calculations, creation of 3D models, cryptocurrency mining, tests in single and multi-core modes.

These are saved results from the earlier catalog. Measurement dates and test configurations were not recorded. Models with no comparable results are omitted.

Recent models: test results with identified primary sources — Cinebench R23 · Cinebench R20 · Cinebench R15 · Cinebench 2026 · RandomX benchmark

iGPU - FP32 Performance (Single-precision GFLOPS)

The performance of the iGPU - the internal GPU in games

Higher values are better in this metric.

1916 GFLOPS

Intel Core i7-1255U

1946 GFLOPS

AMD Ryzen 7 5700U

1943 GFLOPS

Google Tensor

All the benchmark results

Comparable benchmark results are required to suggest performance alternatives.