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Key specs
Cores
16
Threads
16
Boost Clock
5 GHz
TDP
15-25 W (configurable)
Socket
FCBGA2540
Process
2 nm
Benchmarks
Rating
75
Perf.
71
iGPU
99
Energy
83
Cinebench 2024 Single-Core
131
Cinebench 2024 Multi-Core
1320
TDP
15-25 W
Cache L3
18MB
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 FLOPS
7.7 TFLOPS
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