Intel Core i9 12900HX vs Intel Core Ultra 7 355
CPU · Specs Compare
General Parameters
Release Date
May 2022
Jan 2026
Manufacturer
Intel
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Alder Lake
—
Processor Number
i9-12900HX
355
Integrated Graphics
UHD Graphics (32EU)
Graphics 4 Xe3
Generation
—
Intel Core Ultra Series 3
Package
Manufacturing Process
10 nm
3 nm
Socket
BGA-1964
Custom
Power Consumption
45-55 W
15-25 W
Max Turbo Power Consumption
157 W
55 W
Peak Operating Temperature
100°C
100 °C
CPU Performance
Performance Cores
8
4
Performance Core Threads
16
4
Performance Core Base Frequency
2.3 GHz
2.3 GHz
Performance Core Turbo Frequency
5 GHz
4.7 GHz
Efficiency Cores
8
4
Efficiency Core Threads
8
4
Efficiency Core Base Frequency
1.7 GHz
1.7 GHz
Efficiency Core Turbo Frequency
3.6 GHz
3.5 GHz
Total Core Count
16
8
Total Thread Count
24
8
Bus Frequency
100 MHz
100 MHz
Multiplier
23x
23
L1 Cache
80 K per core
—
L2 Cache
1280 K per core
—
L3 Cache
30 MB shared
12 MB shared
Unlocked Multiplier
Yes
No
Memory Parameters
Memory Types
DDR5-4800, DDR4-3200
LPDDR5X-7467,DDR5-6400
Max Memory Size
128 GB
128 GB
Max Memory Channels
2
2
Max Memory Bandwidth
76.8 GB/s
119.5 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
—
GPU Max Dynamic Frequency
1550 MHz
2500 MHz
Shader Units
256
—
Texture Units
16
—
Raster Operation Units
8
—
Execution Units
32
4
Power Consumption
45 W
—
Max Resolution
—
7680 x 4320 @ 60Hz
Miscellaneous
PCIe Version
5.0
5.0
PCIe Lanes
20
12
Benchmark
Cinebench R23
1,904
—
Cinebench R23
20,977
—
Geekbench 6
2,519
2,706
Geekbench 5
1,896
—
Geekbench 6
14,447
10,277
Geekbench 5
16,154
—
Blender
280
—
Passmark CPU
3,874
—
Passmark CPU
34,632
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.