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Intel Core Ultra X9 378H
Intel Laptop CPU

Intel Core Ultra X9 378H

75A
Cores16
Threads16
Boost Clock5 GHz
TDP15-25 W (configurable)
SocketFCBGA2540
Process2 nm
⇄ Compare with…

Benchmarks

Perf.71
iGPU99
Energy83
Cinebench 2024 Single-Core131
Cinebench 2024 Multi-Core1320
TDP15-25 W
Cache L318MB
Cinebench 2024 (Single)131
Cinebench 2024 (Multi)1320
Geekbench 6 (Single-Core)2915
Geekbench 6 (Multi-Core)16,494
Passmark CPU (Single-Core)4453
Passmark CPU (Multi-Core)38,298
iGPU FLOPS7.7 TFLOPS

Full specifications

Cinebench

Cinebench 2026 (Single)
535
Cinebench 2026 (Multi)
5201

PassMark

Integer math
92.6 GOps/sec
Floating point math
114.5 GOps/sec
Find prime numbers
357M Primes/sec
Random string sorting
44.6M Strings/sec
Data encryption
29.8 GBytes/sec
Data compression
386.6 MBytes/sec
Physics
3404 Frames/sec
Extended instructions
31.3B Matrices/sec

Performance Per Watt

Cinebench 2024 / Watt
52.8 PPW
Geekbench 6 Multi / Watt
659.8 PPW
Passmark CPU Mark / Watt
1531.9 PPW

General

Vendor
Intel
Released
May 13, 2026
Type
Laptop
Instruction Set
x86-64
Codename
Panther Lake
Model number
388H
Integrated GPU
Arc B390

CPU

P-Cores
4
P-Threads
4
Base Frequency (P)
2.0 GHz
Turbo Boost Frequency (P)
5 GHz
E-Cores
12
E-Threads
12
Base Frequency (E)
1.6 GHz
Turbo Boost Frequency (E)
3.8 GHz
Total Cores
16
Total Threads
16
Bus Frequency
100 MHz
Multiplier
20x
L1 Cache
192K (per core)
L2 Cache
3MB (per core)
L3 Cache
18MB (shared)
Unlocked Multiplier
No

Package

Fabrication Process
2 nm
TDP (PL1)
15-25 W (configurable)
Max. Boost TDP (PL2)
80 W
Socket
FCBGA2540
Peak Temperature
100°C

iGPU

Integrated Graphics
Intel Arc B390
GPU Base Clock
300 MHz
GPU Boost Clock
2500 MHz
Shading Units
1536
TMUs
48
ROPs
24
Execution Units
12
TGP
30 W

Memory Support

Memory Types
- LPDDR5X-9600
Max. Memory Size
96 GB
Memory Channels
2
Max. Memory Bandwidth
153.6 GB/s
ECC Support
No

Misc

Official Site
Intel Core Ultra X9 378H official page
PCI Express Version
5.0
PCI Express Lanes
12

Specifications compiled from NanoReview. Last updated 2026-09-29.

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