AMD Ryzen 7 7745HX vs Ryzen 5 7645HX

We compared two laptop CPUs: the 3.6 GHz AMD Ryzen 7 7745HX with 8-cores against the 4.0 GHz Ryzen 5 7645HX 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
Generic CPU rating

Key Differences

What are the key differences between 7645HX and 7745HX
Advantages of AMD Ryzen 7 7745HX
  • Has 2 more physical cores
  • 2% higher Turbo Boost frequency (5.1 GHz vs 5 GHz)
Promotion

Test in Benchmarks

Comparing the performance of CPUs across various tasks

Cinebench R23

Reputable cross-platform benchmark for high-performance processors
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
18215

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)
13495
File compression 1410 MB/sec 1190 MB/sec
Clang compilation 114.7 Klines/sec 93.4 Klines/sec
HTML 5 Browser 255.1 pages/sec 206.7 pages/sec
PDF Renderer 408.8 Mpixels/sec 323.8 Mpixels/sec
Text processing 275.9 pages/sec 283.9 pages/sec
Background blur 44.9 images/sec 59 images/sec
Photo processing 92.1 images/sec 82.1 images/sec
Ray tracing 25.5 Mpixels/sec 19.3 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 106.9 GOps/sec -
Floating point math 63.6 GOps/sec -
Find prime numbers 155M Primes/sec -
Random string sorting 46.4M Strings/sec -
Data encryption 23.5 GBytes/sec -
Data compression 393.8 MBytes/sec -
Physics 1640 Frames/sec -
Extended instructions 29.8B Matrices/sec -
Sources: PassMark [3]

Specifications

Full technical specification of AMD Ryzen 7 7745HX and Ryzen 5 7645HX

General

Vendor AMD AMD
Released January 4, 2023 January 4, 2023
Type Laptop Laptop
instruction set x86-64 x86-64
Codename Zen 4 (Dragon Range) Zen 4 (Dragon Range)
Integrated GPU Radeon 610M Radeon 610M

CPU

Performance Cores
P-Cores 8 6
P-Threads 16 12
Base Frequency (P) 3.6 GHz 4.0 GHz
Turbo Boost Frequency (P) 5.1 GHz 5 GHz
Total
Total Cores 8 6
Total Threads 16 12
Bus Frequency 100 MHz 100 MHz
Multiplier 36x 40x
L1 Cache 64K (per core) 64K (per core)
L2 Cache 1MB (per core) 1MB (per core)
L3 Cache 32MB (shared) 32MB (shared)
Unlocked Multiplier Yes Yes

Package

Transistors 13.1 billions 13.1 billions
Fabrication process 5 nm 5 nm
TDP (PL1) 45-75 W (configurable) 45-75 W (configurable)
Socket FL1 FL1
Peak temperature 100°C 100°C

iGPU

Integrated Graphics Radeon 610M Radeon 610M
GPU Base Clock 1500 MHz 1500 MHz
GPU Boost Clock 2200 MHz 2200 MHz
Shading Units 128 128
TMUs 8 8
ROPs 4 4
Execution Units 2 2
TGP 15 W 15 W
iGPU FLOPS
0.49 TFLOPS
0.49 TFLOPS

Memory Support

Memory types - DDR5-5200 - DDR5-5200
Memory Size 64 GB 64 GB
Max. Memory Channels 2 2
ECC Support No No

Misc

Official site AMD Ryzen 7 7745HX official page AMD Ryzen 5 7645HX official page
PCI Express Version 5.0 5.0
PCI Express Lanes 28 28

Cast your vote

Choose between two processors
2 (50%)
2 (50%)
Total votes: 4

Comments

So which CPU will you choose: AMD Ryzen 5 7645HX or Ryzen 7 7745HX?
Promotion