Intel Core Ultra 7 356H vs Ultra 5 338H

We compared two laptop CPUs: the 1.9 GHz Intel Core Ultra 7 356H with 16-cores against the 1.9 GHz Ultra 5 338H with 12-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
NanoReview Final Score
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Key Differences

What are the key differences between 338H and 356H
Advantages of Intel Core Ultra 7 356H
  • Has 4 more physical cores
  • Supports up to 128 GB LPDDR5X-8533 RAM
Advantages of Intel Core Ultra 5 338H
  • More powerful Intel Arc B370 integrated graphics: 6.1 vs 2.5 TFLOPS
  • Around 21.3 GB/s (18%) higher theoretical memory bandwidth

Test in Benchmarks

Comparing the performance of CPUs across various tasks

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench 2026 (Single) - 501
Cinebench 2026 (Multi) 4053 3840
Cinebench Scores (122nd and 163rd place)

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
File compression 1200 MB/sec 1210 MB/sec
Clang compilation 119.5 Klines/sec 98.2 Klines/sec
HTML 5 Browser 241.3 pages/sec 371.3 pages/sec
PDF Renderer 421.6 Mpixels/sec 368 Mpixels/sec
Text processing 295.8 pages/sec 293 pages/sec
Background blur 60.7 images/sec 59.2 images/sec
Photo processing 117.9 images/sec 118.3 images/sec
Ray tracing 22.9 Mpixels/sec 19.7 Mpixels/sec
Sources: GeekBench [1], [2]

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 83 GOps/sec 63.8 GOps/sec
Floating point math 102.9 GOps/sec 82.6 GOps/sec
Find prime numbers 325M Primes/sec 301M Primes/sec
Random string sorting 41.4M Strings/sec 33.8M Strings/sec
Data encryption 26.5 GBytes/sec 21.1 GBytes/sec
Data compression 339.3 MBytes/sec 274.2 MBytes/sec
Physics 2860 Frames/sec 2652 Frames/sec
Extended instructions 28.3B Matrices/sec 23.7B Matrices/sec
Sources: PassMark [3], [4] – 176 & 51 samples

Blender

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

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 45.7 PPW 38.7 PPW
Geekbench 6 Multi / Watt 636.6 PPW 561.3 PPW
Passmark CPU Mark / Watt 1364.6 PPW 1133.2 PPW
Blender / Watt 9.25 PPW 8.22 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Specifications

Full technical specification of Intel Core Ultra 7 356H and Ultra 5 338H

General

Vendor Intel Intel
Released January 5, 2026 January 5, 2026
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Panther Lake Panther Lake
Model number 356H 338H
Integrated GPU Xe3 Graphics (4-Core) Arc B370
Rival Equivalent - AMD Ryzen AI 7 450 -
Intel CPU rating (55th and 56th place)

CPU

Performance Cores
P-Cores 4 4
P-Threads 4 4
Base Frequency (P) 1.9 GHz 1.9 GHz
Turbo Boost Frequency (P) 4.7 GHz 4.7 GHz
Efficient Cores
E-Cores 12 8
E-Threads 12 8
Base Frequency (E) 1.5 GHz 1.5 GHz
Turbo Boost Frequency (E) 3.5 GHz 3.4 GHz
Total
Total Cores 16 12
Total Threads 16 12
Bus Frequency 100 MHz 100 MHz
Multiplier 19x 19x
L1 Cache 192K (per core) 192K (per core)
L2 Cache 2560K (per core) 2560K (per core)
L3 Cache 18MB (shared) 18MB (shared)
Unlocked Multiplier No No

Package

Fabrication Process 2 nm 2 nm
TDP (PL1) 15-25 W (configurable) 15-25 W (configurable)
Max. Boost TDP (PL2) 80 W 80 W
Socket FCBGA2540 FCBGA2540
Peak Temperature 100°C 100°C
Laptop processors ranking (67th and 68th place)

iGPU

Integrated Graphics Intel Xe3 Graphics (4-Core) Intel Arc B370
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 2450 MHz 2400 MHz
Shading Units 512 1280
TMUs 32 40
ROPs 16 20
Execution Units 4 10
TGP 25 W 25 W
iGPU FLOPS
2.5 TFLOPS
6.1 TFLOPS

Memory Support

Memory Types - LPDDR5X-8533
- DDR5-7200
- LPDDR5X-8533
Max. Memory Size 128 GB 96 GB
Memory Channels 2 2
Max. Memory Bandwidth 115.2 GB/s 136.5 GB/s
ECC Support No No

Misc

Official Site Intel Core Ultra 7 356H official page Intel Core Ultra 5 338H official page
PCI Express Version 5.0 5.0
PCI Express Lanes 20 12

Cast your vote

Choose between two processors
3 (21.4%)
11 (78.6%)
Total votes: 14

Comments

So which CPU will you choose: Intel Core Ultra 5 338H or Ultra 7 356H?
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Avatar
Alfa January 18, 2026 at 03:58 PM
But process node is 1.8 nm please check this.
+4 Reply