I'm putting together a PC without a dedicated GPU and I'm considering using a single DDR5 stick (1x 16 GB at 6000 MHz CL30). I'm going to be relying on the integrated graphics of the Ryzen 5 7500X3D until I get a better GPU. About 40% of the games I play can run on a low-end system, so I'm not too worried about that. I've heard that X3D CPUs are more tolerant to RAM frequency, but does that apply to using just one stick of RAM? I'm trying to avoid buying two 8GB sticks if it won't make a noticeable difference.
4 Answers
Not really a big deal. DDR5 can operate in a pseudo dual channel mode with a single stick, so the performance drop is typically around 5-10% compared to using two sticks. However, the integrated graphics really rely on RAM bandwidth, so if you’re just running one stick, you might hit some frame drops, especially in the 1% lows. With a weak integrated GPU like the one in the 7500X3D, you're probably going to struggle with games at the lowest settings.
RAM performance impacts are often exaggerated. Since you're using integrated graphics, that's the bigger limiting factor in your setup. The difference in gaming performance will probably be around 1% to 5% at worst. Your iGPU will likely experience a minor performance drop, but it's not something to stress about. Think of it like comparing performance tires to regular tires on an old car – it's still going to get you where you need to go!
Exactly, the real issue will be in those lower frame rate scenarios with just one RAM stick.
Using a single stick probably won’t drop performance too much since X3D chips are pretty forgiving with memory speeds.
Check out some YouTube comparisons for Ryzen 7000 series integrated graphics. Just steer clear of any videos about the 'G' models because those have much better integrated graphics. Using a single stick of RAM will likely hurt your FPS, especially for integrated graphics. Sure, it's not a long-term fix, but it might hold you over for a bit until you score a dedicated GPU.
You missed the point though; he’s relying on integrated graphics. That changes everything you said!