VRAM ! ie ram in graphics card
and do not buy PCs that have like 24gb ram, because PC RAM (for motherboards) sticks are not sold in 12GB sticks. Which means 24GB = 3x8GB which is total BS, do not buy computer with 3 ram sticks it will not run in dual memory channel. Tell them you want it without any motherboard RAM and buy your own 32gb on TWO sticks. (or maybe give correct specs for your PC, you may be misreading them).
ps is that LAPTOP or DESKTOP PC ?