AMD Ryzen 9 7945HX vs Ryzen 7 7745HX

We compared two laptop CPUs: the 2.5 GHz AMD Ryzen 9 7945HX with 16-cores against the 3.6 GHz Ryzen 7 7745HX with 8-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.


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 7745HX and 7945HX
Advantages of AMD Ryzen 9 7945HX
  • Has 8 more physical cores
  • Has 32768 KB larger L3 cache size
  • 6% higher Turbo Boost frequency (5.4 GHz vs 5.1 GHz)

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)

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 1330 MB/sec 1410 MB/sec
Clang compilation 195.8 Klines/sec 114.7 Klines/sec
HTML 5 Browser 256.2 pages/sec 255.1 pages/sec
PDF Renderer 433.7 Mpixels/sec 408.8 Mpixels/sec
Text processing 287.1 pages/sec 275.9 pages/sec
Background blur 61.5 images/sec 44.9 images/sec
Photo processing 95.4 images/sec 92.1 images/sec
Ray tracing 45.5 Mpixels/sec 25.5 Mpixels/sec
Sources: GeekBench [1], [2]


Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 216.3 GOps/sec 106.9 GOps/sec
Floating point math 129.6 GOps/sec 63.6 GOps/sec
Find prime numbers 292M Primes/sec 155M Primes/sec
Random string sorting 89.2M Strings/sec 46.4M Strings/sec
Data encryption 44.7 GBytes/sec 23.5 GBytes/sec
Data compression 740.3 MBytes/sec 393.8 MBytes/sec
Physics 2440 Frames/sec 1640 Frames/sec
Extended instructions 55B Matrices/sec 29.8B Matrices/sec
Sources: PassMark [3], [4]


Full technical specification of AMD Ryzen 9 7945HX and Ryzen 7 7745HX


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


Performance Cores
P-Cores 16 8
P-Threads 32 16
Base Frequency (P) 2.5 GHz 3.6 GHz
Turbo Boost Frequency (P) 5.4 GHz 5.1 GHz
Total Cores 16 8
Total Threads 32 16
Bus Frequency 100 MHz 100 MHz
Multiplier 25x 36x
L1 Cache 64K (per core) 64K (per core)
L2 Cache 1MB (per core) 1MB (per core)
L3 Cache 64MB (shared) 32MB (shared)
Unlocked Multiplier Yes Yes


Transistors 13.1 billions 13.1 billions
Fabrication process 5 nm 5 nm
TDP (PL1) 55-75 W (configurable) 45-75 W (configurable)
Socket FL1 FL1
Peak temperature 100°C 100°C


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

Memory Support

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


Official site AMD Ryzen 9 7945HX official page AMD Ryzen 7 7745HX official page
PCI Express Version 5.0 5.0
PCI Express Lanes 28 28

Cast your vote

Choose between two processors
26 (86.7%)
4 (13.3%)
Total votes: 30


So which CPU will you choose: AMD Ryzen 7 7745HX or Ryzen 9 7945HX?