Intel Core Ultra X9 388H vs Intel Core i9 12900HX
CPU Specs Compare
General Parameters
Release Date
Jan 2026
May 2022
Manufacturer
Intel
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Panther Lake
Alder Lake
Processor Number
388H
i9-12900HX
Integrated Graphics
Arc B390
UHD Graphics (32EU)
Generation
Ultra X9 (Panther Lake-H)
-
Package
Manufacturing Process
2 nm
10 nm
Socket
FCBGA2540
BGA-1964
Power Consumption
15-25 W
45-55 W
Max Turbo Power Consumption
80 W
157 W
Peak Operating Temperature
100 °C
100°C
Foundry
Intel
-
Package
FC-BGA
-
CPU Performance
Performance Cores
4
8
Performance Core Threads
4
16
Performance Core Base Frequency
2.1 GHz
2.3 GHz
Performance Core Turbo Frequency
5.1 GHz
5 GHz
Efficiency Cores
12
8
Efficiency Core Threads
12
8
Efficiency Core Base Frequency
1.6 GHz
1.7 GHz
Efficiency Core Turbo Frequency
4 GHz
3.6 GHz
Total Core Count
16
16
Total Thread Count
16
24
Bus Frequency
100 MHz
100 MHz
Multiplier
21
23x
L1 Cache
192 K per core
80 K per core
L2 Cache
2560 K per core
1280 K per core
L3 Cache
18 MB shared
30 MB shared
Unlocked Multiplier
No
Yes
SMP
1
-
Memory Parameters
Memory Types
LPDDR5X-9600
DDR5-4800, DDR4-3200
Max Memory Size
96 GB
128 GB
Max Memory Channels
2
2
Max Memory Bandwidth
153.6 GB/s
76.8 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
2500 MHz
1550 MHz
Shader Units
1536
256
Texture Units
48
16
Raster Operation Units
24
8
Execution Units
12
32
Power Consumption
45
45 W
AI Accelerator
Theoretical performance
50 TOPS
-
📊 Benchmark
Geekbench 6
3,026
2,519
Geekbench 6
17,541
14,447
Cinebench 2024
130
-
Cinebench R23
-
1,904
Cinebench R23
-
20,977
Geekbench 5
-
1,896
Geekbench 5
-
16,154
Blender
-
280
Passmark CPU
-
3,874
Passmark CPU
-
34,632