Intel Core Ultra 7 266V vs Intel Core i7 1255U
CPU · Specs Compare
General Parameters
Release Date
Sep 2024
Feb 2022
Manufacturer
Intel
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Lunar Lake
Alder Lake
Processor Number
266V
i7-1255U
Integrated Graphics
Arc Graphics 140V
Iris Xe Graphics (96EU)
Generation
Ultra 7(Lunar Lake)
—
Package
Manufacturing Process
3 nm
10 nm
Socket
FCBGA-2833
BGA-1744
Power Consumption
17-37 W
12-15 W
Peak Operating Temperature
100 °C
100°C
Foundry
TSMC
—
Package
FC-BGA
—
Max Turbo Power Consumption
—
55 W
CPU Performance
Performance Cores
4
2
Performance Core Threads
4
4
Performance Core Base Frequency
2.2 GHz
1.7 GHz
Performance Core Turbo Frequency
5 GHz
4.7 GHz
Efficiency Cores
4
8
Efficiency Core Threads
4
8
Efficiency Core Base Frequency
2.2 GHz
1.2 GHz
Efficiency Core Turbo Frequency
3.7 GHz
3.5 GHz
Total Core Count
8
10
Total Thread Count
8
12
Bus Frequency
100 MHz
100 MHz
Multiplier
22x
17x
L0 Cache
48 KB
—
L1 Cache
192 KB per core
80 K per core
L2 Cache
14 MB
1280 K per core
L3 Cache
12 MB
12 MB shared
Unlocked Multiplier
No
No
SMP
1
—
Memory Parameters
Memory Types
LPDDR5X-8533
DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267
Max Memory Size
32 GB
64 GB
Max Memory Channels
2
2
Max Memory Bandwidth
136 GB/s
76.8 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
600 MHz
300 MHz
GPU Max Dynamic Frequency
2000 MHz
1250 MHz
Shader Units
1024
768
Execution Units
8
96
Texture Units
—
48
Raster Operation Units
—
24
Power Consumption
—
15 W
AI Accelerator
NPU
Intel® AI Boost
—
Theoretical performance
48 TOPS
—
Miscellaneous
PCIe Version
5.0
4.0
PCIe Lanes
8
20
Benchmark
Cinebench R23
2,081
1,701
Cinebench R23
12,798
8,233
Geekbench 6
2,906
2,248
Geekbench 6
11,358
7,162
Geekbench 5
—
1,628
Geekbench 5
—
7,372
Blender
—
125
Passmark CPU
—
3,308
Passmark CPU
—
13,792
▲ Specs Compare
Data sourced from official specifications and benchmark tests.