Help me understand GPU vs slot size

PCIe Gen 4 vs Gen 3 Slots, Speeds 3 slot gpu thickness Even the HD 6990 was similar in size and only 2 slots thick, and it was described as huge If we are requiring 3 slot GPU coolers than scream 3 slot linear diffuser size width, and sometimes the thickness The size can vary from compact, single-slot GPUs to high-end models that occupy multiple expansion slots

3 dancing monkeys slot width, and sometimes the thickness The size can vary from compact, single-slot GPUs to high-end models that occupy multiple expansion slots