Home > CPU Comparison > Ryzen 7 8840HS or Ryzen 5 8640HS: what's better?

AMD Ryzen 7 8840HS vs Ryzen 5 8640HS

58 out of 100
AMD Ryzen 7 8840HS
VS
52 out of 100
AMD Ryzen 5 8640HS
AMD Ryzen 7 8840HS
AMD Ryzen 5 8640HS

We compared two laptop CPUs: the 3.3 GHz AMD Ryzen 7 8840HS with 8-cores against the 3.5 GHz Ryzen 5 8640HS 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
DeviceFacts Final Score
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
🔌 Usage Scenario:

Key Differences

What are the key differences between 8640HS and 8840HS
Advantages of AMD Ryzen 7 8840HS
  • More powerful Radeon 780M integrated graphics: 4.1 vs 2.7 TFLOPS
  • Has 2 more physical cores
  • 20% faster in a single-core Geekbench v6 test - 2551 vs 2127 points
  • 4% higher Turbo Boost frequency (5.1 GHz vs 4.9 GHz)

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Ryzen 7 8840HS
vs
Ryzen 5 8640HS

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
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)
File compression 714.9 MB/sec 928.4 MB/sec
Clang compilation 87.9 Klines/sec 53.5 Klines/sec
HTML 5 Browser 182.5 pages/sec 169.7 pages/sec
PDF Renderer 280.1 Mpixels/sec 200 Mpixels/sec
Text processing 271.4 pages/sec 237.7 pages/sec
Background blur 44.8 images/sec 37.6 images/sec
Photo processing 70.1 images/sec 72.3 images/sec
Ray tracing 19.2 Mpixels/sec 11.2 Mpixels/sec
Sources: GeekBench [1] – 308 & 63 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Ryzen 7 8840HS +24%
24625
Ryzen 5 8640HS
19843
Integer math 88.4 GOps/sec 67.1 GOps/sec
Floating point math 51.6 GOps/sec 39.2 GOps/sec
Find prime numbers 78M Primes/sec 71M Primes/sec
Random string sorting 35.3M Strings/sec 27.2M Strings/sec
Data encryption 17.5 GBytes/sec 13.5 GBytes/sec
Data compression 289.2 MBytes/sec 225.6 MBytes/sec
Physics 1153 Frames/sec 1002 Frames/sec
Extended instructions 20.4B Matrices/sec 15.9B Matrices/sec
Sources: PassMark [3], [4] – 768 & 286 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 22.6 PPW 19.9 PPW
Geekbench 6 Multi / Watt 321.8 PPW 262.2 PPW
Passmark CPU Mark / Watt 820.8 PPW 661.4 PPW
Blender / Watt 5.59 PPW -
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Specifications

Full technical specification of AMD Ryzen 7 8840HS and Ryzen 5 8640HS

General

Vendor Amd Amd
Released December 6, 2023 December 6, 2023
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Zen 4 (Hawk Point) Zen 4 (Hawk Point)
Integrated GPU Radeon 780M Radeon 760M
AMD Ryzen CPU ranking (75th and 100th place)

CPU

Performance Cores
P-Cores 8 6
P-Threads 16 12
Base Frequency (P) 3.3 GHz 3.5 GHz
Turbo Boost Frequency (P) 5.1 GHz 4.9 GHz
Total
Total Cores 8 6
Total Threads 16 12
Bus Frequency 100 MHz 100 MHz
Multiplier 33x 35x
L1 Cache 64K (per core) 64K (per core)
L2 Cache 1MB (per core) 1MB (per core)
L3 Cache 16MB (shared) 16MB (shared)
Unlocked Multiplier No No

Package

Transistors 25 billions 25 billions
Fabrication Process 4 nm 4 nm
TDP (PL1) 20-30 W (configurable) 20-30 W (configurable)
Socket FP8 FP8
Peak Temperature 100°C 100°C
Laptop processors ranking (120th and 179th place)

iGPU

Integrated Graphics Radeon 780M Radeon 760M
GPU Base Clock 800 MHz 800 MHz
GPU Boost Clock 2700 MHz 2600 MHz
Shading Units 768 512
TMUs 48 32
ROPs 32 16
Execution Units 12 8
TGP 15 W 15 W
iGPU FLOPS
Ryzen 7 8840HS +52%
4.1 TFLOPS
Ryzen 5 8640HS
2.7 TFLOPS
More info: Radeon 760M compared to Radeon 780M

Memory Support

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

Misc

Official Site AMD Ryzen 7 8840HS official page AMD Ryzen 5 8640HS official page
PCI Express Version 4.0 4.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
50 (65.8%)
26 (34.2%)
Total votes: 76

Competitors

1. AMD Ryzen 5 8640HS vs AMD Ryzen 5 8645HS
2. AMD Ryzen 5 8640HS vs AMD Ryzen 7 7840HS
3. AMD Ryzen 5 8640HS vs AMD Ryzen 7 7735HS
4. AMD Ryzen 5 8640HS vs AMD Ryzen 5 7640HS
5. AMD Ryzen 5 8640HS vs Intel Core i5 14500HX (1)
6. AMD Ryzen 7 8840HS vs Intel Core Ultra 7 155H
7. AMD Ryzen 7 8840HS vs Intel Core i9 13900H
8. AMD Ryzen 7 8840HS vs Intel Core Ultra 7 165H (1)
9. AMD Ryzen 7 8840HS vs Intel Core i7 13700H
10. AMD Ryzen 7 8840HS vs AMD Ryzen 7 8845HS
Compare other CPUs (460+)

Comments

So which CPU will you choose: AMD Ryzen 5 8640HS or Ryzen 7 8840HS?
🌐 Register your profile and become part of DeviceFacts community!
EnglishРусский