Intel Core Ultra X9 378H vs Intel Core Ultra 9 290HX Plus
CPU · Specs Compare
General Parameters
Release Date
Apr 2026
Jan 2026
Manufacturer
Intel
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Panther Lake
Arrow Lake
Processor Number
378H
290HX
Integrated Graphics
Arc B390
Arc Graphics (4-Cores)
Generation
Ultra X9 (Panther Lake-H)
Ultra 9 (Arrow Lake-HX)
Package
Manufacturing Process
3 nm
3 nm
Socket
Intel BGA 2540
FCBGA-2114
Power Consumption
25 W
45-55 W
Max Turbo Power Consumption
80 W
160 W
Peak Operating Temperature
100°C
105 °C
Foundry
Intel
TSMC
Package
FC-BGA
FC-BGA
Transistor Count
—
17.8 billions
Die Size
—
243 mm²
CPU Performance
Performance Cores
4
8
Performance Core Threads
8
8
Performance Core Base Frequency
2 GHz
2.7 GHz
Performance Core Turbo Frequency
5 GHz
5.5 GHz
Efficiency Cores
12
16
Efficiency Core Threads
12
16
Efficiency Core Base Frequency
1600 MHz
1.8 GHz
Efficiency Core Turbo Frequency
3.8 GHz
4.7 GHz
Total Core Count
16
24
Total Thread Count
16
24
Bus Frequency
100 MHz
100 MHz
Multiplier
20.0
27
L1 Cache
192 KB per core
192 K per core
L2 Cache
2.5 MB per core
3 MB per core
L3 Cache
18 MB shared
36 MB shared
Unlocked Multiplier
No
Yes
SMP
1
1
Memory Parameters
Memory Types
LPDDR5X-9600
DDR5-6400
Max Memory Size
96 GB
256 GB
Max Memory Channels
2
2
Max Memory Bandwidth
153.6 GB/s
102.4 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
800 MHz
300 MHz
GPU Max Dynamic Frequency
2500 MHz
2000 MHz
Shader Units
1024
512
Texture Units
64
32
Raster Operation Units
32
16
Execution Units
12
64
Power Consumption
45
14
AI Accelerator
Theoretical performance
50 TOPS
—
Miscellaneous
PCIe Version
5
5.0
PCIe Lanes
4
24
Benchmark
Cinebench R23
—
2,237
Cinebench R23
—
38,581
Geekbench 6
—
3,196
Geekbench 6
—
21,569
Cinebench 2024
—
126
Cinebench 2024
—
2,218
Passmark CPU
—
5,006
Passmark CPU
—
66,051
▲ Specs Compare
Data sourced from official specifications and benchmark tests.