RAM can have a big impact on a PC when it comes to gaming or doing pretty much anything. A lot of new games are using well over 8GB of RAM if you want to run them on high settings. To answer your second question "can 8gb RAM bottleneck a 2080" the answer would be yes...or kind of yes. If you plan on getting a 2080 I would recommend 16GB at least and 3000MHZ is fine for most usesI want to build a new PC and i'm low on budget. Can not enough or too slow RAM bottleneck a PC? Is 8GB 3000Mhz RAM enough for a RTX 2080? If no is 12GB enough?