09/05/2025 6:01 am
Topic starter
Notifications
Clear all
0
I'm building a new PC with the AMD Ryzen 9 9950X3D and need advice on the best RAM to pair with it. I'm looking for 128GB, ideally in a 64x2 DDR5 configuration. What speed and timings should I aim for? I've heard DDR5-6000 to 6400 MT/s is recommended, but I'm unsure about the specific models. Any suggestions for reliable brands or kits that work well with this CPU? Thanks!
1 Answer
3
10/05/2025 12:44 pm
For the 9950X3D, I've had excellent results with G.Skill Trident Z5 DDR5-6000 CL30. The sweet spot for Zen 5 seems to be 6000MT/s with a 1:1 FCLK ratio (so memory controller runs at 3000MHz). Higher speeds often force the infinity fabric to run decoupled, which can actually hurt performance despite the higher MT/s numbers. Make sure to get a kit with decent primary timings (CL30 or better) as that makes a significant difference with 3D V-Cache.
