Which one should I get for gaming? I checked various places and a review on this site that said the Sapphire Radeon HD 3850 is the best AGP card. Is there a significant difference between them? My mind keeps telling me that the newer series is always better, so i just need to know
Money isn't a problem but if there isn't much of a difference i would like to buy the cheapest of course.
To the average PC owner, replacing a motherboard would be a daunting task fraught with many fears of terminal accidents. Plus you would probably need to reinstall OS with a new Mobo, a serious pain in the ass for the average PC user.
Just get the cheaper card, it uses less power and you will likely have less problems with it. I take it you are not a gamer, so you don't need the more powerful card. And, like mentioned, on your platform the more powerful card isn't going to do you much good anyway.
You need more than a LGA775 socket as a lot of the older 775 motherboards cannot use core2duos and an AGP board is likely to be one of them.
Also you should be looking at an e5200 or e5300 instead of that processor. It's better and the cost difference should be minimal but tell us what motherboard you actually have because there's a very good chance it doesn't matter anyway.
It can't even use a Pentium D much less a core2duo. If you are going to upgrade that thing just get an HD4650 as the processor won't be able to keep up with that card as it is. Honestly you should just be building a new computer. Building an acceptable gaming computer for lower resolutions can be done fairly cheaply if you want to however.