I'm currently building a new PC and considering RAM options. With RAM prices skyrocketing, I've been used to the low costs of DDR4—I have 64GB in my workstation and just added a 32GB kit to my gaming rig. Now, I'm looking at purchasing a 2x16GB DDR5-6000 CL36 kit, but I wonder if it's a good idea to buy another identical kit later on. Since DDR5 is pricey and comes with specific compatibility issues, will I have problems if I mix the two sets later? Also, I'm contemplating whether to save $20 by choosing a motherboard with just two RAM slots or going with one that has four slots.
2 Answers
You might encounter stability issues when running all four sticks of DDR5, especially with an Intel setup. Generally, mixing kits isn't a sure bet even if they match specs. Intel's memory controller is decent, but it's still a gamble when it comes to stability. Just keep that in mind when you plan your build!
I’d advise against running four sticks of DDR5—it can put a strain on the memory controller. As for pricing, DDR5 can be found at decent prices like around $200 for a good 2x16GB kit. But if you see deals that seem steep, it's worth looking at alternatives because there are better options out there for not much more money. Regarding the motherboard slots, two-slot boards tend to be higher end, so check that. Also consider what you really need—64GB is a lot unless you're doing heavy multitasking. If not, a 48GB kit might be a sweet spot that keeps things simpler for your memory controller.
Yeah, given your usage, 48GB could save you some cash while still providing plenty of performance without pushing the controller too hard.

Totally agree, my last purchase was a killer deal for DDR5. Prices fluctuate a ton, but anything above $200 for DDR5 seems nuts to me.