Intel Core Ultra 9 275HX vs Intel Core i9 12900HK
We compared two laptop CPUs: Intel Core Ultra 9 275HX with 24 cores 2.7GHz 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 Ultra 9 275HX 's Advantages
Released 3 years late
Better graphics card performance
Higher specification of memory (6400 vs 5200)
Larger memory bandwidth (102.4GB/s vs 76.8GB/s)
Newer PCIe version (5.0 vs 4.0)
Higher base frequency (2.7GHz vs 2.5GHz)
Larger L3 cache size (36MB vs 24MB)
More modern manufacturing process (3nm vs 10nm)
Intel Core i9 12900HK 's Advantages
Lower TDP (45W vs 55W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core Ultra 9 275HX
+8%
2090
Intel Core i9 12900HK
1934
Cinebench R23 Multi Core
Intel Core Ultra 9 275HX
+71%
31244
Intel Core i9 12900HK
18257
Geekbench 6 Single Core
Intel Core Ultra 9 275HX
+25%
2959
Intel Core i9 12900HK
2361
Geekbench 6 Multi Core
Intel Core Ultra 9 275HX
+44%
17562
Intel Core i9 12900HK
12172
Passmark CPU Single Core
Intel Core Ultra 9 275HX
+28%
4732
Intel Core i9 12900HK
3676
Passmark CPU Multi Core
Intel Core Ultra 9 275HX
+118%
61069
Intel Core i9 12900HK
27949
General Parameters
Jan 2025
Release Date
Jan 2022
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Arrow Lake
Core Architecture
Alder Lake
275HX
Processor Number
i9-12900HK
FCBGA-2114
Socket
BGA-1744
Arc Graphics (4-Cores)
Integrated Graphics
Iris Xe Graphics (96EU)
Ultra 9 (Arrow Lake)
Generation
-
Package
3 nm
Manufacturing Process
10 nm
45-55 W
Power Consumption
35-45 W
160 W
Max Turbo Power Consumption
115 W
105 °C
Peak Operating Temperature
100°C
Intel
Foundry
-
CPU Performance
8
Performance Cores
6
8
Performance Core Threads
12
2.7 GHz
Performance Core Base Frequency
2.5 GHz
5.4 GHz
Performance Core Turbo Frequency
5 GHz
16
Efficiency Cores
8
16
Efficiency Core Threads
8
2.1 GHz
Efficiency Core Base Frequency
1.8 GHz
4.6 GHz
Efficiency Core Turbo Frequency
3.8 GHz
24
Total Core Count
14
24
Total Thread Count
20
100 MHz
Bus Frequency
100 MHz
27
Multiplier
25x
112 K per core
L1 Cache
80 K per core
2 MB per core
L2 Cache
1280 K per core
36 MB shared
L3 Cache
24 MB shared
Yes
Unlocked Multiplier
Yes
1
SMP
-
Memory Parameters
DDR5-6400
Memory Types
DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267
192 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
300 MHz
GPU Base Frequency
300 MHz
1900 MHz
GPU Max Dynamic Frequency
1450 MHz
512
Shader Units
768
32
Texture Units
48
16
Raster Operation Units
24
64
Execution Units
96
14
Power Consumption
15 W
1.9 TFLOPS
Graphics Performance
1.69 TFLOPS
Miscellaneous
5.0
PCIe Version
4.0
24
PCIe Lanes
28
