I'm pretty sure Samsung develops most types of memory save for XDR and RDRAM which is from Rambus, although I think ATI had a hand in GDDR development
I'm pretty sure Intel developed PCI-E as well, I'm not sure about AGP though
ouch, wikipedia actually failed me for once. But yeah, Samsung manufactures most ICs for (G)DDR so I would think that they develop them as well. There are a few exceptions like Winbond BH-5s though of course
You don't seem to understand, the x1950PRO is a watered down version of the x1950XTX. And I've pretty much already told you, it's futile upgrading if your system does everything you want it to do. It's also a waste selling a card that's about a week old as you won't get anywhere near what you bought it for. Used is used
Well if it's a 7900GTX/7950G2 intermediary...for 200 bucks, then thats a 7900GTX PLUS for less than half the price...provided the perf estimates are accurate. But w/e...I've got my own low budget "tweaker plan"..hehehe