Memory for Ryzen 9 5900X is available in standard configurations.
Memory for Ryzen 9 5900X is available in standard configurations.
Hey there! For your Ryzen 9 5900X setup with a 32GB 3600 GB RAM goal, gaming, editing, or rendering, you're looking at the CL18-22-22 option as a solid choice. The pricing range from £179 to £160 makes it accessible, and the "Optimized for Ryzen Edition" label is a nice touch. It seems the community agrees that upgrading to 3600 GB will boost performance, especially with newer Ryzen models. Just keep in mind the CAS latency matters, and the UK listings are reliable. Good luck with your build!
Seems you spotted it! The price is £40 extra for the RGB version. https://www.cclonline.com/product/355308...k/RAM4905/
Same cost available. See product details here: https://uk.pcpartpicker.com/products/memory/#xcx=0 and https://uk.pcpartpicker.com/product/33WB...g36c16u4bl
For Ryzen systems, a communication network linking the CCDs—core die components—is known as the Infinity Fabric. It operates independently with its own timing. To achieve peak efficiency, this internal clock must match the memory clock exactly. If RAM lags behind, the fabric slows down, affecting overall CPU speed. There’s a maximum speed for the FCLK (fabric clock), beyond which high-speed RAM becomes less useful. Ideally, RAM should run at the same speed as the FCLK for optimal results. The standard FCLK is around 1800MHz, which most modern Ryzen CPUs can support. Some models may reach up to 1900MHz or even 1933MHz, while newer chips with Zen 3 and varied designs could hit 2000MHz. This higher speed usually aligns with 3600MHz RAM, though it’s often labeled in MHz for simplicity.
The reason RAM appears double the FCLK is due to DDR technology—double data rate means two transfers per clock cycle. At 3600MHz, this translates to an effective clock of about 1800MHz (or 3600 MT/s). Manufacturers use MHz for convenience, but technically it’s similar. What matters most for users is the CAS latency (CL), ideally around one-twentieth of the rated speed. For a 3600MHz system, this means a CL18 is typical. Lower CL values are better; 3600MHz CL16 is commonly available at comparable prices, making it a practical choice for most applications.
While memory timings can be complex, the key metric for consumers is CAS latency. A lower CL ensures smoother performance, especially in memory-intensive tasks like data science or scientific computing.
Your calculations seem correct. The difference of £36 likely reflects the pricing variation between non-RGB and RGB options. You're not doing anything wrong.
Additionally, checking the link you shared shows the 156 quid choice is unavailable, with just 192 units remaining in stock.