Home > CPU Comparison > Ryzen 7 7840U or Ryzen 7 6800U​: what's better?

AMD Ryzen 7 7840U vs Ryzen 7 6800U​

57 out of 100
AMD Ryzen 7 7840U
VS
49 out of 100
AMD Ryzen 7 6800U​
AMD Ryzen 7 7840U
AMD Ryzen 7 6800U​

We compared two 8-core laptop CPUs: the 3.3 GHz AMD Ryzen 7 7840U against the 2.7 GHz Ryzen 7 6800U​. 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 (1)

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.
🔌 Usage Scenario:

Key Differences

What are the key differences between 6800U​ and 7840U
Advantages of AMD Ryzen 7 7840U
  • Supports up to 256 GB DDR5-5600 RAM
  • More modern manufacturing process – 4 versus 6 nanometers
  • Newer - released 1 year and 4 months later
  • 25% faster in a single-core Geekbench v6 test - 2465 vs 1967 points
  • More powerful Radeon 780M integrated graphics: 4.1 vs 3.4 TFLOPS
  • 9% higher Turbo Boost frequency (5.1 GHz vs 4.7 GHz)

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Ryzen 7 7840U
vs
Ryzen 7 6800U​

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 1110 MB/sec 773.1 MB/sec
Clang compilation 82.2 Klines/sec 62.6 Klines/sec
HTML 5 Browser 210.4 pages/sec 163.8 pages/sec
PDF Renderer 298.4 Mpixels/sec 259.3 Mpixels/sec
Text processing 250.6 pages/sec 199.8 pages/sec
Background blur 47.5 images/sec 36.8 images/sec
Photo processing 90.5 images/sec 66.5 images/sec
Ray tracing 17.5 Mpixels/sec 14.9 Mpixels/sec
Sources: GeekBench [1], [2] – 1087 & 675 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Ryzen 7 7840U +18%
24383
Ryzen 7 6800U​
20732
Integer math 89.3 GOps/sec 78.7 GOps/sec
Floating point math 50.9 GOps/sec 43.1 GOps/sec
Find prime numbers 79M Primes/sec 57M Primes/sec
Random string sorting 33.5M Strings/sec 26.6M Strings/sec
Data encryption 17.4 GBytes/sec 15.9 GBytes/sec
Data compression 282.7 MBytes/sec 250.8 MBytes/sec
Physics 1245 Frames/sec 978 Frames/sec
Extended instructions 20B Matrices/sec 16.5B Matrices/sec
Sources: PassMark [3], [4] – 551 & 535 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 24.3 PPW 20.2 PPW
Geekbench 6 Multi / Watt 357.5 PPW 293.5 PPW
Passmark CPU Mark / Watt 812.8 PPW 740.4 PPW
Blender / Watt 6.65 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 7 7840U
DateBenchmarkResult
📘 2025-08-03 (Aaron)Cinebench 202493 / 764
📘 2025-03-15 (JP)Cinebench 202496 / 728
Add View all (2)
AMD Ryzen 7 6800U​
No benchmark results yet
Add

Specifications

Full technical specification of AMD Ryzen 7 7840U and Ryzen 7 6800U​

General

Vendor Amd Amd
Released May 3, 2023 January 4, 2022
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Zen 4 (Phoenix) Zen 3+ (Rembrandt)
Integrated GPU Radeon 780M Radeon 680M
Rival Equivalent - Intel Core i7 1370P - Intel Core i7 1280P
Successor - AMD Ryzen 7 250 - AMD Ryzen 7 250
AMD Ryzen CPU ranking (82nd and 116th place)

CPU

Performance Cores
P-Cores 8 8
P-Threads 16 16
Base Frequency (P) 3.3 GHz 2.7 GHz
Turbo Boost Frequency (P) 5.1 GHz 4.7 GHz
Total
Total Cores 8 8
Total Threads 16 16
Bus Frequency 100 MHz 100 MHz
Multiplier 33x 27x
L1 Cache 64K (per core) 64K (per core)
L2 Cache 1MB (per core) 512K (per core)
L3 Cache 16MB (shared) 16MB (shared)
Unlocked Multiplier No No

Package

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

iGPU

Integrated Graphics Radeon 780M AMD Radeon 680M
GPU Base Clock 800 MHz 400 MHz
GPU Boost Clock 2700 MHz 2200 MHz
Shading Units 768 768
TMUs 48 48
ROPs 32 32
Execution Units 12 12
TGP 15 W 15 W
iGPU FLOPS
Ryzen 7 7840U +21%
4.1 TFLOPS
Ryzen 7 6800U​
3.4 TFLOPS
More info: Radeon 680M compared to Radeon 780M

Memory Support

Memory Types - DDR5-5600
- LPDDR5x-7500		 - DDR5-4800
- LPDDR5-6400
Max. Memory Size 256 GB 64 GB
Memory Channels 2 2
Max. Memory Bandwidth - 76.8 GB/s
ECC Support No No

Misc

Official Site AMD Ryzen 7 7840U official page AMD Ryzen 7 6800U​ official page
PCI Express Version 4.0 4.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
180 (91.8%)
16 (8.2%)
Total votes: 196

Competitors

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4. AMD Ryzen 7 7840U vs AMD Ryzen 7 8840U (4)
5. AMD Ryzen 7 7840U vs Intel Core i7 1355U
6. AMD Ryzen 7 7840U vs AMD Ryzen 7 7840HS (5)
7. AMD Ryzen 7 7840U vs Intel Core Ultra 7 155H (3)
8. AMD Ryzen 7 7840U vs AMD Ryzen Z1 Extreme
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Comments

So which CPU will you choose: AMD Ryzen 7 6800U​ or Ryzen 7 7840U?
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Avatar
Bono July 20, 2023 at 01:34 AM
If you have a 6800u, I would just upgrade it with eGPU support rather than buying a new machine with 7840u. If you are not upgrading, the choice is obvious of course.
+65 Reply
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