Cores: 16L3 cache: 18MB (shared)TDP: 15-25 W (max. boost up to 80 W)Transistor size: 2 nm
Core Ultra X9 378H - laptop processor produced by Intel for socket FCBGA2540 that has 16 cores and 16 threads. The base clock frequency of the CPU is 2000 MHz, but due to Turbo Boost technology, it can perform up to 5000 MHz. The size of the L3 cache is 18 MB. Please note that this chip has integrated graphics Intel Arc B390.
Single-Core Performance
83
Multi-Core Performance
59
NanoReview Final Score
75
Compare Intel Core Ultra X9 378H with other CPUs
Test in Benchmarks
Performance test of Intel Core Ultra X9 378H in benchmarks
Cinebench
Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
131
Cinebench 2024 (Multi)
1320
Cinebench 2026 (Single)
535
Cinebench 2026 (Multi)
5201
GeekBench v6
The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
2915
Geekbench 6 (Multi-Core)
16494
PassMark
Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
4453
Passmark CPU (Multi-Core)
38298
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
Sources:
PassMark
[3]
–
1
samples
Performance Per Watt
Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt
52.8 PPW
Geekbench 6 Multi / Watt
659.8 PPW
Passmark CPU Mark / Watt
1531.9 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Specifications
Core Ultra X9 378H technical specifications
Vendor
Intel
Released
May 13, 2026
Type
Laptop
Instruction Set
x86-64
Codename
Panther Lake
Model number
388H
Integrated GPU
Arc B390
Performance Cores
P-Cores
4
P-Threads
4
Base Frequency (P)
2.0 GHz
Turbo Boost Frequency (P)
5 GHz
Efficient Cores
E-Cores
12
E-Threads
12
Base Frequency (E)
1.6 GHz
Turbo Boost Frequency (E)
3.8 GHz
Total
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
Fabrication Process
2 nm
TDP (PL1)
15-25 W (configurable)
Max. Boost TDP (PL2)
80 W
Socket
FCBGA2540
Peak Temperature
100°C
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
See also:
Intel Arc B390 – integrated graphics of Intel Core Ultra X9 378H
Memory Types
- LPDDR5X-9600
Max. Memory Size
96 GB
Memory Channels
2
Max. Memory Bandwidth
153.6 GB/s
ECC Support
No
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