Home > CPU Comparison > Ryzen 9 7945HX or Ryzen 5 7645HX: what's better?

AMD Ryzen 9 7945HX vs Ryzen 5 7645HX

74 out of 100
AMD Ryzen 9 7945HX
VS
58 out of 100
AMD Ryzen 5 7645HX
AMD Ryzen 9 7945HX
AMD Ryzen 5 7645HX

We compared two laptop CPUs: the 2.5 GHz AMD Ryzen 9 7945HX with 16-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.

  1. Review
  2. Differences
  3. Performance
  4. Specs
  5. Comments

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 7645HX and 7945HX
Advantages of AMD Ryzen 9 7945HX
  • Has 10 more physical cores
  • Has 32 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
  • 8% higher Turbo Boost frequency (5.4 GHz vs 5 GHz)

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Ryzen 9 7945HX
vs
Ryzen 5 7645HX

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (#41st 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)
Geekbench 6 (Multi-Core)
Ryzen 9 7945HX +49%
17828
Ryzen 5 7645HX
11962
File compression 1590 MB/sec 1290 MB/sec
Clang compilation 190.6 Klines/sec 88.4 Klines/sec
HTML 5 Browser 320.2 pages/sec 227.9 pages/sec
PDF Renderer 474.8 Mpixels/sec 289.8 Mpixels/sec
Text processing 296.8 pages/sec 279.4 pages/sec
Background blur 66.1 images/sec 57.5 images/sec
Photo processing 114.8 images/sec 87.6 images/sec
Ray tracing 43 Mpixels/sec 18.6 Mpixels/sec
Sources: GeekBench [1], [2] – 677 & 8 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Ryzen 9 7945HX +110%
53917
Ryzen 5 7645HX
25677
Integer math 205.1 GOps/sec 75.7 GOps/sec
Floating point math 122.1 GOps/sec 46.6 GOps/sec
Find prime numbers 280M Primes/sec 176M Primes/sec
Random string sorting 81.4M Strings/sec 35.1M Strings/sec
Data encryption 42.2 GBytes/sec 17.2 GBytes/sec
Data compression 699.1 MBytes/sec 288 MBytes/sec
Physics 2450 Frames/sec 1524 Frames/sec
Extended instructions 51.2B Matrices/sec 21.7B Matrices/sec
Sources: PassMark [3], [4] – 2890 & 15 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 24.5 PPW 10.1 PPW
Geekbench 6 Multi / Watt 237.7 PPW 159.5 PPW
Passmark CPU Mark / Watt 718.9 PPW 342.4 PPW
Blender / Watt 6.3 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
AMD Ryzen 9 7945HX
DateBenchmarkResult
πŸ“˜ 2025-11-02 (Qwerrty574)Geekbench 6 CPU2949 / 17981
πŸ“˜ 2025-11-02 (Qwerrty574)Cinebench 2024116 / 1901
πŸ“˜ 2025-04-02 (ceratogyrus35)Cinebench 2024114 / 1834
πŸ“˜ 2025-02-18 (Baka)Cinebench 2024112 / 1552
Add View all (4)
AMD Ryzen 5 7645HX
No benchmark results yet
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Specifications

Full technical specification of AMD Ryzen 9 7945HX 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
Rival Equivalent - Intel Core i9 13950HX - Intel Core i5 13500HX
AMD Ryzen CPU ranking (24th and 77th place)

CPU

Performance Cores
P-Cores 16 6
P-Threads 32 12
Base Frequency (P) 2.5 GHz 4.0 GHz
Turbo Boost Frequency (P) 5.4 GHz 5 GHz
Total
Total Cores 16 6
Total Threads 32 12
Bus Frequency 100 MHz 100 MHz
Multiplier 25x 40x
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

Package

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 100Β°C 100Β°C
Laptop processors ranking (36th and 122nd place)

iGPU

Integrated Graphics Radeon 610M Radeon 610M
GPU Base Clock 400 MHz 400 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
Ryzen 9 7945HX
0.6 TFLOPS
Ryzen 5 7645HX
0.6 TFLOPS
See: Radeon 610M benchmarks

Memory Support

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

Misc

Official Site AMD Ryzen 9 7945HX official page AMD Ryzen 5 7645HX official page
PCI Express Version 5.0 5.0
PCI Express Lanes 28 28

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Competitors

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Comments

So which CPU will you choose: AMD Ryzen 5 7645HX or Ryzen 9 7945HX?
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