AMD Ryzen 9 6900HS vs Ryzen 9 5900X

We compared two CPUs: the 3.3 GHz AMD Ryzen 9 6900HS (laptop) with 8-cores against the 3.7 GHz Ryzen 9 5900X (desktop) with 12-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.


General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 5900X and 6900HS
Advantages of AMD Ryzen 9 6900HS
  • Consumes up to 67% less energy than the Ryzen 9 5900X – 35 vs 105 Watt
  • Newer - released 1-year and 3-months later
  • Around 29.12 GB/s (61%) higher theoretical memory bandwidth
  • More modern manufacturing process – 6 versus 7 nanometers
  • Includes an integrated GPU AMD Radeon 680M
  • 2% higher Turbo Boost frequency (4.9 GHz vs 4.8 GHz)
Advantages of AMD Ryzen 9 5900X
  • Has 48 MB larger L3 cache size
  • Unlocked multiplier
  • Supports up to 128 GB DDR4-3200 RAM
  • Has 4 more physical cores


Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
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Full technical specification of AMD Ryzen 9 6900HS and Ryzen 9 5900X


Vendor AMD AMD
Released January 4, 2022 October 8, 2020
Type Laptop Desktop
instruction set x86-64 x86-64
Codename Rembrandt Vermeer
Socket FP7 AM4
Integrated GPU Radeon 680M No


Cores 8 12
Threads 16 24
Base Frequency 3.3 GHz 3.7 GHz
Turbo Boost Frequency 4.9 GHz 4.8 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 33x 37x
L1 Cache 64K (per core) 64K (per core)
L2 Cache 512K (per core) 512K (per core)
L3 Cache 16MB (shared) 64MB (shared)
Unlocked Multiplier No Yes


Fabrication process 6 nm 7 nm
TDP 35 W 105 W
Max. temperature 95°C 90°C


Integrated Graphics AMD Radeon 680M -
GPU Base Clock 2000 MHz -
GPU Boost Clock 2400 MHz -
Shading Units 768 -
TMUs 48 -
ROPs 32 -
Execution Units 12 -
TGP 15 W -
3.686 TFLOPS

Memory support

Memory types DDR5-4800, LPDDR5-6400 DDR4-3200
Memory Size 64 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 76.8 GB/s 47.68 GB/s
ECC Support No Yes


Official site AMD Ryzen 9 6900HS official page AMD Ryzen 9 5900X official page
PCI Express Version 4.0 4.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
4 (50%)
4 (50%)
Total votes: 8


So which CPU will you choose: AMD Ryzen 9 5900X or Ryzen 9 6900HS?