Home > CPU Comparison > Ryzen 9 7945HX or Ryzen 9 7940HS: what's better?

AMD Ryzen 9 7945HX vs Ryzen 9 7940HS

74 out of 100
AMD Ryzen 9 7945HX
VS
60 out of 100
AMD Ryzen 9 7940HS
AMD Ryzen 9 7945HX
AMD Ryzen 9 7940HS

We compared two laptop CPUs: the 2.5 GHz AMD Ryzen 9 7945HX with 16-cores against the 4.0 GHz Ryzen 9 7940HS with 8-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 (5)

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 7940HS and 7945HX
Advantages of AMD Ryzen 9 7945HX
  • Has 48 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
  • Has 8 more physical cores
  • Unlocked multiplier
  • Newer PCI Express version – 5.0
  • 17% faster in a single-core Geekbench v6 test - 2901 vs 2469 points
  • 4% higher Turbo Boost frequency (5.4 GHz vs 5.2 GHz)
Advantages of AMD Ryzen 9 7940HS
  • More powerful Radeon 780M integrated graphics: 4.3 vs 0.6 TFLOPS
  • Supports up to 256 GB DDR5-5600 RAM
  • More modern manufacturing process – 4 versus 5 nanometers

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Ryzen 9 7945HX
vs
Ryzen 9 7940HS

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (41st and 174th 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 +53%
17828
Ryzen 9 7940HS
11631
File compression 1590 MB/sec 962.5 MB/sec
Clang compilation 190.6 Klines/sec 101.4 Klines/sec
HTML 5 Browser 320.2 pages/sec 211.8 pages/sec
PDF Renderer 474.8 Mpixels/sec 326.9 Mpixels/sec
Text processing 296.8 pages/sec 260.3 pages/sec
Background blur 66.1 images/sec 53.8 images/sec
Photo processing 114.8 images/sec 87.4 images/sec
Ray tracing 43 Mpixels/sec 22.5 Mpixels/sec
Sources: GeekBench [1], [2] – 677 & 569 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 +81%
53917
Ryzen 9 7940HS
29783
Integer math 205.1 GOps/sec 102.1 GOps/sec
Floating point math 122.1 GOps/sec 62.3 GOps/sec
Find prime numbers 280M Primes/sec 90M Primes/sec
Random string sorting 81.4M Strings/sec 42.5M Strings/sec
Data encryption 42.2 GBytes/sec 21.5 GBytes/sec
Data compression 699.1 MBytes/sec 360.4 MBytes/sec
Physics 2450 Frames/sec 1427 Frames/sec
Extended instructions 51.2B Matrices/sec 27.2B Matrices/sec
Sources: PassMark [3], [4] – 2890 & 2780 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Ryzen 9 7945HX +109%
472.26
Ryzen 9 7940HS
225.69

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 24.5 PPW 17.3 PPW
Geekbench 6 Multi / Watt 237.7 PPW 215.4 PPW
Passmark CPU Mark / Watt 718.9 PPW 551.5 PPW
Blender / Watt 6.3 PPW 4.18 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 9 7940HS
DateBenchmarkResult
πŸ“˜ 2025-11-09 (chrisg)Cinebench 2024105 / 873
πŸ“˜ 2025-08-19 (Phillywilly2000)Cinebench 2024102 / 906
πŸ“˜ 2025-07-14 (GlancingOcean)Cinebench 202470 / 677
πŸ“˜ 2025-05-13 (antoooooo)Cinebench 2024109 / 1009
πŸ“˜ 2025-03-08 (沧桷)Geekbench 6 CPU2614 / 12911
Add View all (9)

Specifications

Full technical specification of AMD Ryzen 9 7945HX and Ryzen 9 7940HS

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 (Phoenix)
Integrated GPU Radeon 610M Radeon 780M
Rival Equivalent - Intel Core i9 13950HX - Intel Core i9 13900H
Successor - - AMD Ryzen AI 9 HX 470
AMD Ryzen CPU ranking (24th and 66th place)

CPU

Performance Cores
P-Cores 16 8
P-Threads 32 16
Base Frequency (P) 2.5 GHz 4.0 GHz
Turbo Boost Frequency (P) 5.4 GHz 5.2 GHz
Total
Total Cores 16 8
Total Threads 32 16
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) 16MB (shared)
Unlocked Multiplier Yes No

Package

Transistors 13.1 billions 25 billions
Fabrication Process 5 nm 4 nm
TDP (PL1) 55-75 W (configurable) 35-54 W (configurable)
Socket FL1 FP8
Peak Temperature 100Β°C 100Β°C
Laptop processors ranking (36th and 106th place)

iGPU

Integrated Graphics Radeon 610M Radeon 780M
GPU Base Clock 400 MHz 800 MHz
GPU Boost Clock 2200 MHz 2800 MHz
Shading Units 128 768
TMUs 8 48
ROPs 4 32
Execution Units 2 12
TGP 15 W 15 W
iGPU FLOPS
Ryzen 9 7945HX
0.6 TFLOPS
Ryzen 9 7940HS +617%
4.3 TFLOPS
More info: Radeon 780M compared to Radeon 610M

Memory Support

Memory Types - DDR5-5200 - DDR5-5600
- LPDDR5x-7500
Max. Memory Size 64 GB 256 GB
Memory Channels 2 2
ECC Support No No

Misc

Official Site AMD Ryzen 9 7945HX official page AMD Ryzen 9 7940HS official page
PCI Express Version 5.0 4.0
PCI Express Lanes 28 20
Further details
Notes on Ryzen 9 7940HS:
    - DDR5 memory is supported only on the FP7r2 socket, while FP7 and FP8 sockets support LPDDR5/x.
    - ECC support is available exclusively on the FP7r2 socket.

Cast your vote

Choose between two processors
148 (41.3%)
210 (58.7%)
Total votes: 358

Competitors

1. AMD Ryzen 9 7945HX vs Intel Core i7 14650HX
2. AMD Ryzen 9 7945HX vs AMD Ryzen 9 8940HX
3. AMD Ryzen 9 7945HX vs AMD Ryzen 9 9955HX
4. AMD Ryzen 9 7945HX vs Intel Core i7 14700HX
5. AMD Ryzen 9 7945HX vs Intel Core i9 14900HX (5)
6. AMD Ryzen 9 7940HS vs Intel Core i7 13700H (1)
7. AMD Ryzen 9 7940HS vs AMD Ryzen 7 7840HS (9)
8. AMD Ryzen 9 7940HS vs AMD Ryzen 9 8945HS (4)
9. AMD Ryzen 9 7940HS vs Qualcomm Snapdragon X Elite (X1E-84-100) (1)
10. AMD Ryzen 9 7940HS vs AMD Ryzen 7 8845HS
Compare other CPUs (460+)

Comments

So which CPU will you choose: AMD Ryzen 9 7940HS or Ryzen 9 7945HX?
🌐 Register your profile and become part of NanoReview community!
Avatar
Vladislav April 18, 2025 at 01:47 PM
As owner of 7945HX can express an experience, that iGPU of the processor is NOT always smooth for Windows interface with lot of windows and tabs (in browser) opened, especially for 2k 240HZ display. So, this could take into account, if you want to run your laptop as portable device often and use your system on energy efficient iGPU, better choice could be 7940HS with 7x more powerful iGPU. But using 7945HX with dGPU is very smooth and beast performance. This CPU brings huge benefits in CPU-intensive tasks, like code compilation and multitasking.
+1 Reply
Avatar
Me-she December 10, 2024 at 12:07 PM
The Ryzen 9 7940HS has better igpu performance and is designed for thin&light laptops. While, The Ryzen 9 7940HX has better cpu performance and is designed gaming laptops. It's simple the Ryzen 9 7940HS is good by itself while Ryzen 9 7940HX is better with a dedicated Gpu. The only thing that matters is what you, The user wants. A gaming laptop or a thin&light laptop.
+4 Reply
Avatar
Hi_ June 4, 2024 at 11:19 PM
Yes, very well. Filler, good, blah blah here. But, in all honesty, why would you choose the 7940HS instead? Is it value? Efficiency? What? Someone who voted for it, please explain. Thanks.
+3 Reply
Avatar
Moabuakb August 3, 2024 at 12:22 PM
Because it has more, 7940HS can handle 3D Unreal Engine tasks more effectively.
+2 Reply
Avatar
Sus February 13, 2025 at 11:34 AM
Much better graphics, which is sufficient in all of my use cases, so I wouldn't need to buy a dedicated GPU. 7940HS is cheaper from what I have seen, has a higher base frequency, and less power consumption. Do I need 8 more cores and PCIe lanes in exchange for a higher price, more heat, and previous generation graphics? No, to be honest.
0 Reply
EnglishРусский