Home > CPU Comparison > Ryzen 7 7735U or Ryzen 5 8640U: what's better?

AMD Ryzen 7 7735U vs Ryzen 5 8640U

49 out of 100
AMD Ryzen 7 7735U
VS
56 out of 100
AMD Ryzen 5 8640U
AMD Ryzen 7 7735U
AMD Ryzen 5 8640U

We compared two laptop CPUs: the 2.7 GHz AMD Ryzen 7 7735U with 8-cores against the 3.5 GHz Ryzen 5 8640U 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.
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Key Differences

What are the key differences between 8640U and 7735U
Advantages of AMD Ryzen 7 7735U
  • Has 2 more physical cores
  • More powerful Radeon 680M integrated graphics: 3.4 vs 2.7 TFLOPS
Advantages of AMD Ryzen 5 8640U
  • Supports up to 256 GB DDR5-5600 RAM
  • More modern manufacturing process – 4 versus 6 nanometers
  • Newer - released 11 months later
  • 27% faster in a single-core Geekbench v6 test - 2519 vs 1976 points
  • 3% higher Turbo Boost frequency (4.9 GHz vs 4.75 GHz)

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Ryzen 7 7735U
vs
Ryzen 5 8640U

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)
Ryzen 7 7735U
1976
Ryzen 5 8640U +27%
2519
Geekbench 6 (Multi-Core)
Ryzen 7 7735U
8697
Ryzen 5 8640U +19%
10308
File compression 729.6 MB/sec 1080 MB/sec
Clang compilation 71.8 Klines/sec 71 Klines/sec
HTML 5 Browser 160.3 pages/sec 226.5 pages/sec
PDF Renderer 254.5 Mpixels/sec 260.8 Mpixels/sec
Text processing 205.1 pages/sec 259.8 pages/sec
Background blur 41.1 images/sec 48.1 images/sec
Photo processing 66.8 images/sec 94.5 images/sec
Ray tracing 18.5 Mpixels/sec 15.5 Mpixels/sec
Sources: GeekBench [1], [2] – 764 & 6 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Ryzen 7 7735U +1%
20191
Ryzen 5 8640U
19989
Integer math 77.7 GOps/sec 66.4 GOps/sec
Floating point math 42 GOps/sec 39.6 GOps/sec
Find prime numbers 55M Primes/sec 68M Primes/sec
Random string sorting 26M Strings/sec 27.7M Strings/sec
Data encryption 15.5 GBytes/sec 13.7 GBytes/sec
Data compression 245.3 MBytes/sec 226.7 MBytes/sec
Physics 973 Frames/sec 1015 Frames/sec
Extended instructions 16.1B Matrices/sec 16.4B Matrices/sec
Sources: PassMark [3], [4] – 589 & 41 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 19.5 PPW 20.4 PPW
Geekbench 6 Multi / Watt 310.6 PPW 343.6 PPW
Passmark CPU Mark / Watt 721.1 PPW 666.3 PPW
Blender / Watt 5.38 PPW -
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Specifications

Full technical specification of AMD Ryzen 7 7735U and Ryzen 5 8640U

General

Vendor Amd Amd
Released January 5, 2023 December 6, 2023
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Zen 3+ (Rembrandt) Zen 4 (Hawk Point)
Integrated GPU Radeon 680M Radeon 760M
Rival Equivalent - Intel Core i7 1365U - Intel Core Ultra 7 155U
AMD Ryzen CPU ranking (114th and 86th place)

CPU

Performance Cores
P-Cores 8 6
P-Threads 16 12
Base Frequency (P) 2.7 GHz 3.5 GHz
Turbo Boost Frequency (P) 4.75 GHz 4.9 GHz
Total
Total Cores 8 6
Total Threads 16 12
Bus Frequency 100 MHz 100 MHz
Multiplier 27x 35x
L1 Cache 64K (per core) 64K (per core)
L2 Cache 512K (per core) 1MB (per core)
L3 Cache 16MB (shared) 16MB (shared)
Unlocked Multiplier No No

Package

Transistors - 25 billions
Fabrication Process 6 nm 4 nm
TDP (PL1) 28 W 15-30 W (configurable)
Socket FP7 FP8
Peak Temperature 95°C 100°C

iGPU

Integrated Graphics Radeon 680M Radeon 760M
GPU Base Clock 400 MHz 800 MHz
GPU Boost Clock 2200 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 7735U +26%
3.4 TFLOPS
Ryzen 5 8640U
2.7 TFLOPS
More info: Radeon 760M compared to Radeon 680M

Memory Support

Memory Types - DDR5-4800
- LPDDR5-6400		 - DDR5-5600
- LPDDR5x-7500
Max. Memory Size 64 GB 256 GB
Memory Channels 2 2
ECC Support Yes No

Misc

Official Site AMD Ryzen 7 7735U official page AMD Ryzen 5 8640U official page
PCI Express Version 4.0 4.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
5 (50%)
5 (50%)
Total votes: 10

Competitors

1. AMD Ryzen 5 8640U vs Intel Core i5 1335U
2. AMD Ryzen 5 8640U vs AMD Ryzen 7 8840U
3. AMD Ryzen 5 8640U vs AMD Ryzen 5 7540U
4. AMD Ryzen 5 8640U vs Intel Core Ultra 5 125U
5. AMD Ryzen 5 8640U vs Intel Core Ultra 5 135U
6. AMD Ryzen 7 7735U vs Intel Core i7 1355U
7. AMD Ryzen 7 7735U vs AMD Ryzen 7 7730U
8. AMD Ryzen 7 7735U vs Intel Core i5 1335U
Compare other CPUs (460+)

Comments

So which CPU will you choose: AMD Ryzen 5 8640U or Ryzen 7 7735U?
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