Home Comparison Intel Core Ultra 7 255HX vs Intel Core i9 12900HK

Intel Core Ultra 7 255HX vs Intel Core i9 12900HK

Intel Core Ultra 7 255HX
VS
Intel Core i9 12900HK
Intel Core Ultra 7 255HX
Intel Core i9 12900HK
We compared two laptop CPUs: Intel Core Ultra 7 255HX with 20 cores 2.4GHz 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 Ultra 7 255HX 's Advantages
Released 3 years late
Higher specification of memory (6400 vs 5200)
Larger memory bandwidth (102.4GB/s vs 76.8GB/s)
Newer PCIe version (5 vs 4.0)
More modern manufacturing process (3nm vs 10nm)
Intel Core i9 12900HK 's Advantages
Higher base frequency (2.5GHz vs 2.4GHz)
Lower TDP (45W vs 55W)

Score

Intel Core Ultra 7 255HX
VS
Intel Core i9 12900HK

General Parameters

Jan 2025
Release Date
Jan 2022
Intel
Manufacturer
Intel
Laptop
Type
Laptop
-
Instruction Set
x86-64
Arrow Lake
Core Architecture
Alder Lake
-
Processor Number
i9-12900HK
Intel Socket 1851
Socket
BGA-1744
Arc Xe-LPG
Integrated Graphics
Iris Xe Graphics (96EU)
Ultra 7 (Arrow Lake)
Generation
-

Package

3 nm
Manufacturing Process
10 nm
17-55 W
Power Consumption
35-45 W
-
Max Turbo Power Consumption
115 W
100 °C
Peak Operating Temperature
100°C
Intel
Foundry
-

CPU Performance

8
Performance Cores
6
8
Performance Core Threads
12
2.4 GHz
Performance Core Base Frequency
2.5 GHz
5.2 GHz
Performance Core Turbo Frequency
5 GHz
12
Efficiency Cores
8
12
Efficiency Core Threads
8
1.8 GHz
Efficiency Core Base Frequency
1.8 GHz
4.5 GHz
Efficiency Core Turbo Frequency
3.8 GHz
20
Total Core Count
14
20
Total Thread Count
20
100 MHz
Bus Frequency
100 MHz
24
Multiplier
25x
112 KB per core
L1 Cache
80 K per core
23 MB
L2 Cache
1280 K per core
24 MB shared
L3 Cache
24 MB shared
No
Unlocked Multiplier
Yes
1
SMP
-

Memory Parameters

DDR5-6400
Memory Types
DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267
256 GB
Max Memory Size
64 GB
2
Max Memory Channels
2
102.4 GB/s
Max Memory Bandwidth
76.8 GB/s
Yes
ECC Memory Support
No

Graphics Card Parameters

true
Integrated Graphics
true
-
GPU Base Frequency
300 MHz
1900 MHz
GPU Max Dynamic Frequency
1450 MHz
-
Shader Units
768
-
Texture Units
48
-
Raster Operation Units
24
64
Execution Units
96
-
Power Consumption
15 W
-
Graphics Performance
1.69 TFLOPS

Miscellaneous

Official Website
Intel Core i9 12900HK
5
PCIe Version
4.0
PCIe Lanes
28

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