Intel Core Ultra 5 135H vs AMD Ryzen 5 8645HS

We compared two laptop CPUs: the 1.7 GHz Intel Core Ultra 5 135H with 14-cores against the 4.3 GHz AMD Ryzen 5 8645HS with 6-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
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
πŸ”Œ Usage Scenario:

Key Differences

What are the key differences between 8645HS and 135H
Advantages of Intel Core Ultra 5 135H
  • Has 8 more physical cores
  • More powerful Arc Graphics (8-Cores) integrated graphics: 4.5 vs 2.7 TFLOPS
  • Newer PCI Express version – 5.0
  • More than 10Β° C higher critical temperature
Advantages of AMD Ryzen 5 8645HS
  • Supports up to 256 GB DDR5-5600 RAM
  • More modern manufacturing process – 4 versus 7 nanometers
  • 22% faster in a single-core Geekbench v6 test - 2668 vs 2194 points
  • 9% higher Turbo Boost frequency (5 GHz vs 4.6 GHz)

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)

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 1130 MB/sec 1150 MB/sec
Clang compilation 86.4 Klines/sec 84.9 Klines/sec
HTML 5 Browser 290.2 pages/sec 211.2 pages/sec
PDF Renderer 345.4 Mpixels/sec 282.9 Mpixels/sec
Text processing 247 pages/sec 282.9 pages/sec
Background blur 48.6 images/sec 58.6 images/sec
Photo processing 110 images/sec 83.3 images/sec
Ray tracing 17.8 Mpixels/sec 18.4 Mpixels/sec
Sources: GeekBench [1], [2] – 22 & 84 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 72.8 GOps/sec 70.5 GOps/sec
Floating point math 54 GOps/sec 43.6 GOps/sec
Find prime numbers 89M Primes/sec 73M Primes/sec
Random string sorting 28.1M Strings/sec 31.1M Strings/sec
Data encryption 14.7 GBytes/sec 15.2 GBytes/sec
Data compression 246 MBytes/sec 257.4 MBytes/sec
Physics 1441 Frames/sec 1075 Frames/sec
Extended instructions 14.6B Matrices/sec 19.5B Matrices/sec
Sources: PassMark [3], [4] – 448 & 850 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
147.75

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 28.2 PPW 13.5 PPW
Geekbench 6 Multi / Watt 375.6 PPW 207.7 PPW
Passmark CPU Mark / Watt 783.9 PPW 406.8 PPW
Blender / Watt 2.44 PPW 2.74 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Recent User Tests

The latest benchmark tests that have been submitted by users
Intel Core Ultra 5 135H
No benchmark results yet
AMD Ryzen 5 8645HS
DateBenchmarkResult
πŸ“˜ 2026-04-04 (supergo0se)Geekbench 6 CPU2540 / 10607
πŸ“˜ 2025-08-04 (ZubairIbnZamir)Cinebench 202489 / 680
πŸ“˜ 2025-08-03 (ZubairIbnZamir)Geekbench 6 CPU2477 / 10355
πŸ“˜ 2025-01-13 (sauron269)Cinebench 2024104 / 676
πŸ“˜ 2024-12-28 (darseen)Cinebench 2024103 / 727

Specifications

Full technical specification of Intel Core Ultra 5 135H and AMD Ryzen 5 8645HS

General

Vendor Intel Amd
Released December 14, 2023 December 6, 2023
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Meteor Lake Zen 4 (Hawk Point)
Model number 135H -
Integrated GPU Arc Graphics (8-Cores) Radeon 760M
Rival Equivalent - AMD Ryzen 5 8645HS - Intel Core Ultra 7 155H
Successor - Intel Core Ultra 5 235H -
Intel CPU rating (#131st place)
AMD Ryzen CPU ranking (#76th place)

CPU

Performance Cores
P-Cores 4 6
P-Threads 8 12
Base Frequency (P) 1.7 GHz 4.3 GHz
Turbo Boost Frequency (P) 4.6 GHz 5 GHz
Efficient Cores
E-Cores 10 -
E-Threads 10 -
Base Frequency (E) 1.2 GHz -
Turbo Boost Frequency (E) 3.6 GHz -
Total
Total Cores 14 6
Total Threads 18 12
Bus Frequency 100 MHz 100 MHz
Multiplier 17x 43x
L1 Cache 112K (per core) 64K (per core)
L2 Cache 2MB (per core) 1MB (per core)
L3 Cache 18MB (shared) 16MB (shared)
Unlocked Multiplier No No

Package

Transistors - 25 billions
Fabrication Process 7 nm 4 nm
TDP (PL1) 20-28 W (configurable) 35-54 W (configurable)
Max. Boost TDP (PL2) 115 W -
Socket FCBGA-2049 FP8
Peak Temperature 110Β°C 100Β°C
Laptop processors ranking (168th and 121st place)

iGPU

Integrated Graphics Arc Graphics (8-Cores) Radeon 760M
GPU Base Clock 300 MHz 800 MHz
GPU Boost Clock 2200 MHz 2600 MHz
Shading Units 1024 512
TMUs 64 32
ROPs 32 16
Execution Units 128 8
TGP 28 W 15 W
iGPU FLOPS
4.5 TFLOPS
2.7 TFLOPS

Memory Support

Memory Types - LPDDR5-7467
- LPDDR5x-7467
- DDR5-5600
- DDR5-5600
- LPDDR5x-7500
Max. Memory Size 96 GB 256 GB
Memory Channels 2 2
Max. Memory Bandwidth 89.6 GB/s -
ECC Support No No

Misc

Official Site Intel Core Ultra 5 135H official page AMD Ryzen 5 8645HS official page
PCI Express Version 5.0 4.0
PCI Express Lanes 28 20

Cast your vote

Choose between two processors
2 (25%)
6 (75%)
Total votes: 8

Comments

So which CPU will you choose: AMD Ryzen 5 8645HS or Intel Core Ultra 5 135H?
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