Intel Core Ultra 5 338H

Cores: 12
L3 cache: 18MB (shared)
TDP: 15-25 W (max. boost up to 80 W)
Transistor size: 2 nm

Core Ultra 5 338H - laptop processor produced by Intel for socket FCBGA2540 that has 12 cores and 12 threads. The base clock frequency of the CPU is 1900 MHz, but due to Turbo Boost technology, it can perform up to 4700 MHz. The size of the L3 cache is 18 MB. Please note that this chip has integrated graphics Intel Arc B370.

Review

Single-Core Performance

78

Multi-Core Performance

44

Power Efficiency

82

Integrated Graphics

99

NanoReview Final Score

67

Compare Intel Core Ultra 5 338H with other CPUs

Cinebench

Reputable cross-platform benchmark for high-performance processors

Cinebench 2024 (Single)

122

Cinebench 2024 (Multi)

968

Cinebench 2026 (Single)	501
Cinebench 2026 (Multi)	3840

Cinebench Scores - 161st place

Submit your benchmark results

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps

Geekbench 6 (Single-Core)

2822

Geekbench 6 (Multi-Core)

14033

File compression	1210 MB/sec
Clang compilation	98.2 Klines/sec
HTML 5 Browser	371.3 pages/sec
PDF Renderer	368 Mpixels/sec
Text processing	293 pages/sec
Background blur	59.2 images/sec
Photo processing	118.3 images/sec
Ray tracing	19.7 Mpixels/sec

Sources: GeekBench [1]

PassMark

Synthetic test that focuses on raw computational performance for low-level functions

Passmark CPU (Single-Core)

4086

Passmark CPU (Multi-Core)

28331

Integer math	63.8 GOps/sec
Floating point math	82.6 GOps/sec
Find prime numbers	301M Primes/sec
Random string sorting	33.8M Strings/sec
Data encryption	21.1 GBytes/sec
Data compression	274.2 MBytes/sec
Physics	2652 Frames/sec
Extended instructions	23.7B Matrices/sec

Sources: PassMark [3] – 51 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)

Blender CPU

205.46

Performance Per Watt

Shows the score you get per each watt of PL1 TDP

Cinebench 2024 / Watt	38.7 PPW
Geekbench 6 Multi / Watt	561.3 PPW
Passmark CPU Mark / Watt	1133.2 PPW
Blender / Watt	8.22 PPW

These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

General

Vendor	Intel
Released	January 5, 2026
Type	Laptop
Instruction Set	x86-64
Codename	Panther Lake
Model number	338H
Integrated GPU	Arc B370

Intel CPU rating - 56th place

CPU

Performance Cores
P-Cores	4
P-Threads	4
Base Frequency (P)	1.9 GHz
Turbo Boost Frequency (P)	4.7 GHz

Efficient Cores
E-Cores	8
E-Threads	8
Base Frequency (E)	1.5 GHz
Turbo Boost Frequency (E)	3.4 GHz

Total
Total Cores	12
Total Threads	12
Bus Frequency	100 MHz
Multiplier	19x
L1 Cache	192K (per core)
L2 Cache	2560K (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

Laptop processors ranking - 67th place

iGPU

Integrated Graphics	Intel Arc B370
GPU Base Clock	300 MHz
GPU Boost Clock	2400 MHz
Shading Units	1280
TMUs	40
ROPs	20
Execution Units	10
TGP	25 W

iGPU FLOPS

6.1 TFLOPS

See also: Intel Arc B370 – integrated graphics of Intel Core Ultra 5 338H

Memory Support

Memory Types	- LPDDR5X-8533
Max. Memory Size	96 GB
Memory Channels	2
Max. Memory Bandwidth	136.5 GB/s
ECC Support	No

Misc

Official Site	Intel Core Ultra 5 338H official page
PCI Express Version	5.0
PCI Express Lanes	12

Competitors

1. Intel Core Ultra 5 338H vs Intel Core Ultra 7 356H (1)

2. Intel Core Ultra 5 338H vs Intel Core Ultra 5 225H (1)

3. Intel Core Ultra 5 338H vs Intel Core Ultra 5 336H

4. Intel Core Ultra 5 338H vs Intel Core Ultra 5 238V

Compare other CPUs (460+)