Pentium 2 with a geforce 2 must have been about 8. Remember my first upgrade I believe it was more ram and a geforce 440 card, boy was it amazing.
I remember buying the first home PC 3D graphics card available - an Orchid Righteous 3D with the original Voodoo GPU and 4MB (yes,
MB) dedicated VRAM. This was when the best PC graphics were software rendering on a 486 running at 66MHz (that was also doing everything else) and sharing the system RAM, which was at most 4MB in those days. The only software that used the 3D graphics card was a demo that came on a disc with the card. That was it. 1 game (Quake) was about to use it. Or maybe the 3D version of Quake had just been released then. I didn't have it.
I'd read some extraordinary levels of hype about Voodoo in some articles about it. Absolutely gibbering about it. Barely coherent in places. A hype train the like of which I'd never seen.
So I installed the demo (a wizard's tower), started it...and stared at it for a while before picking up the phone and gibbering about it to a friend of mine who was also into PC gaming. He came round, stared at the demo for a while, then asked where I bought the card, then went straight there and bought the card. He didn't ask how much it cost. I don't think I knew, anyway. Buy card, live on beans and cheap bread and water until next payday? yeah, fine, whatever. Look at the graphics!
It wasn't an upgrade. It was a whole new thing. There's been nothing like that scale of change since.