Intel Core i9 12900HX vs Intel Core Ultra X9 388H
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
Panther Lake
Processor Number
i9-12900HX
388H
Integrated Graphics
UHD Graphics (32EU)
Arc B390
Generation
—
Ultra X9 (Panther Lake-H)
Package
Manufacturing Process
10 nm
2 nm
Socket
BGA-1964
FCBGA2540
Power Consumption
45-55 W
15-25 W
Max Turbo Power Consumption
157 W
80 W
Peak Operating Temperature
100°C
100 °C
Foundry
—
Intel
Package
—
FC-BGA
CPU Performance
Performance Cores
8
4
Performance Core Threads
16
4
Performance Core Base Frequency
2.3 GHz
2.1 GHz
Performance Core Turbo Frequency
5 GHz
5.1 GHz
Efficiency Cores
8
12
Efficiency Core Threads
8
12
Efficiency Core Base Frequency
1.7 GHz
1.6 GHz
Efficiency Core Turbo Frequency
3.6 GHz
4 GHz
Total Core Count
16
16
Total Thread Count
24
16
Bus Frequency
100 MHz
100 MHz
Multiplier
23x
21
L1 Cache
80 K per core
192 K per core
L2 Cache
1280 K per core
2560 K per core
L3 Cache
30 MB shared
18 MB shared
Unlocked Multiplier
Yes
No
SMP
—
1
Memory Parameters
Memory Types
DDR5-4800, DDR4-3200
LPDDR5X-9600
Max Memory Size
128 GB
96 GB
Max Memory Channels
2
2
Max Memory Bandwidth
76.8 GB/s
153.6 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
300 MHz
GPU Max Dynamic Frequency
1550 MHz
2500 MHz
Shader Units
256
1536
Texture Units
16
48
Raster Operation Units
8
24
Execution Units
32
12
Power Consumption
45 W
45
Miscellaneous
PCIe Version
5.0
5.0
PCIe Lanes
20
12
AI Accelerator
Theoretical performance
—
50 TOPS
Benchmark
Cinebench R23
1,904
—
Cinebench R23
20,977
—
Geekbench 6
2,519
3,026
Geekbench 5
1,896
—
Geekbench 6
14,447
17,541
Geekbench 5
16,154
—
Blender
280
—
Passmark CPU
3,874
—
Passmark CPU
34,632
—
Cinebench 2024
—
130
▲ Specs Compare
Data sourced from official specifications and benchmark tests.