Intel Core i7 1255U vs Intel Core i5 1245U
CPU · Specs Compare
General Parameters
Release Date
Feb 2022
Feb 2022
Manufacturer
Intel
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Alder Lake
Alder Lake-U
Processor Number
i7-1255U
i5-1245U
Integrated Graphics
Iris Xe Graphics (96EU)
Iris Xe Graphics G7 (80EU)
Package
Manufacturing Process
10 nm
10 nm
Socket
BGA-1744
BGA-1744
Power Consumption
12-15 W
12-15 W
Max Turbo Power Consumption
55 W
—
Peak Operating Temperature
100°C
100 °C
CPU Performance
Performance Cores
2
2
Performance Core Threads
4
—
Performance Core Base Frequency
1.7 GHz
1.6 GHz
Performance Core Turbo Frequency
4.7 GHz
4.4 GHz
Efficiency Cores
8
8
Efficiency Core Threads
8
—
Efficiency Core Base Frequency
1.2 GHz
—
Efficiency Core Turbo Frequency
3.5 GHz
—
Total Core Count
10
10
Total Thread Count
12
12
Bus Frequency
100 MHz
100 MHz
Multiplier
17x
16x
L1 Cache
80 K per core
80 K per core
L2 Cache
1280 K per core
1280 K per core
L3 Cache
12 MB shared
12 MB shared
Unlocked Multiplier
No
No
Memory Parameters
Memory Types
DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267
DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267
Max Memory Size
64 GB
64 GB
Max Memory Channels
2
2
Max Memory Bandwidth
76.8 GB/s
76.8 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
300 MHz
GPU Max Dynamic Frequency
1250 MHz
1200 MHz
Shader Units
768
640
Texture Units
48
40
Raster Operation Units
24
20
Execution Units
96
80
Power Consumption
15 W
15 W
Miscellaneous
PCIe Version
4.0
4.0
PCIe Lanes
20
20
Benchmark
Cinebench R23
1,701
—
Cinebench R23
8,233
—
Geekbench 6
2,248
—
Geekbench 5
1,628
—
Geekbench 6
7,162
—
Geekbench 5
7,372
—
Blender
125
—
Passmark CPU
3,308
—
Passmark CPU
13,792
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.