Vid card upgrade / Ram question

[Fig]

Ok, I have decided to keep the system i have and just upgrade it.

ok first question, i have a sapphire 9800xt 256 and the best upgrade i could find sticking with agp was the x850xt, not sure if there's a better one or not but i want to know if its worth the money in performance to upgrade from a 9800xt to the x850xt.

2nd question probably stupid but i don't know, i want to add more ram to my system but i cant find the same package i bought awhile back, but i found the same stuff but its a 512 pack 256x2, i was wondering if i could mix the different size ram together. i have 2x512 now can i run 2x256 in the other slots?


Thanks for any help

 

[BColes]

pretty sure you can get the x850xt pe in AGP, you will see a good performance increase with that card from what you have. It's best to stick with the same size RAM chips.

 

[PZEROFGH]

get a 6800GT and you dont have to go with the same size ram sticks, just the same brand the CL lantecy and voltage