Intel Core i7 1255U vs Intel Core i9 12900HK
We compared two laptop CPUs: Intel Core i7 1255U with 10 cores 1.7GHz and Intel Core i9 12900HK with 14 cores 2.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i7 1255U 's Advantages
Lower TDP (15W vs 45W)
Intel Core i9 12900HK 's Advantages
Higher base frequency (2.5GHz vs 1.7GHz)
Larger L3 cache size (24MB vs 12MB)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i7 1255U
1701
Intel Core i9 12900HK
+13%
1934
Cinebench R23 Multi Core
Intel Core i7 1255U
8233
Intel Core i9 12900HK
+121%
18257
Geekbench 6 Single Core
Intel Core i7 1255U
2248
Intel Core i9 12900HK
+5%
2361
Geekbench 6 Multi Core
Intel Core i7 1255U
7162
Intel Core i9 12900HK
+69%
12172
Blender
Intel Core i7 1255U
125
Intel Core i9 12900HK
+102%
253
Geekbench 5 Single Core
Intel Core i7 1255U
1628
Intel Core i9 12900HK
+10%
1793
Geekbench 5 Multi Core
Intel Core i7 1255U
7372
Intel Core i9 12900HK
+80%
13317
Passmark CPU Single Core
Intel Core i7 1255U
3308
Intel Core i9 12900HK
+11%
3676
Passmark CPU Multi Core
Intel Core i7 1255U
13792
Intel Core i9 12900HK
+102%
27949
General Parameters
Feb 2022
Release Date
Jan 2022
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Alder Lake
Core Architecture
Alder Lake
i7-1255U
Processor Number
i9-12900HK
BGA-1744
Socket
BGA-1744
Iris Xe Graphics (96EU)
Integrated Graphics
Iris Xe Graphics (96EU)
Package
10 nm
Manufacturing Process
10 nm
12-15 W
Power Consumption
35-45 W
55 W
Max Turbo Power Consumption
115 W
100°C
Peak Operating Temperature
100°C
CPU Performance
2
Performance Cores
6
4
Performance Core Threads
12
1.7 GHz
Performance Core Base Frequency
2.5 GHz
4.7 GHz
Performance Core Turbo Frequency
5 GHz
8
Efficiency Cores
8
8
Efficiency Core Threads
8
1.2 GHz
Efficiency Core Base Frequency
1.8 GHz
3.5 GHz
Efficiency Core Turbo Frequency
3.8 GHz
10
Total Core Count
14
12
Total Thread Count
20
100 MHz
Bus Frequency
100 MHz
17x
Multiplier
25x
80 K per core
L1 Cache
80 K per core
1280 K per core
L2 Cache
1280 K per core
12 MB shared
L3 Cache
24 MB shared
No
Unlocked Multiplier
Yes
Memory Parameters
DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267
Memory Types
DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267
64 GB
Max Memory Size
64 GB
2
Max Memory Channels
2
76.8 GB/s
Max Memory Bandwidth
76.8 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
300 MHz
GPU Base Frequency
300 MHz
1250 MHz
GPU Max Dynamic Frequency
1450 MHz
768
Shader Units
768
48
Texture Units
48
24
Raster Operation Units
24
96
Execution Units
96
15 W
Power Consumption
15 W
1.69 TFLOPS
Graphics Performance
1.69 TFLOPS
