Replace existing AGP, or add PCI Graphics Card?

I have 4 year old Sony Viao "PCV-RX670", with 1GB memory. I am getting a new 20" LCD high res monitor. Should I attempt to replace the existing AGP video card (nVIDIA RIVA TNT Model 64) OR should I just install a good PCI card in an open PCI slot. Both will need DVI output interface. Thx, P|||I would definetely go AGP. PCI is mainly used for extra components, it wasn't designed to handle graphics especially with a High-Resolution Monitor. If you go to www.tigerdirect.com then you can get a really good AGP card deal with Dual DVI and S-Video, or VGA and DVI plus S-Video. I have listed some good AGP cards with DVI ports below. Good Luck! Note: Top of list = low end model, Bottom of list = High End Model I recommend the 3rd card on the list (Nvidia XFX GeForce 7600GT for high end or the Radeon 9550 for low end)|||I haven't looked at graphics cards very recently but I ..wait...you don't have PCI E.



Go agp. Much faster and specifially designed for a video card.|||No need to tie up a pci slot stick with the agp it won't make a difference in performance|||If you can still find AGP display card on the market, then you should consider upgrading to a better AGP graphic card, with at least 256MB ram on the grpahic card itself.



Most of newer graphic card (on AGP) do have DVI output on the card.



Good luck, purchasing your new AGP graphic card!|||On paper, AGP cards blow away PCI video cards.



However, on benchmarks the difference between two identical PCI and AGP cards is nonexistent. AGP turned out to be a bit of a fraud.



Enter PCI-E. If your computer has PCI-E slots, use them. However, if you are still using a Riva TNT video card, you undoubtedly do not have a PCI-E slot.



I would recommend getting a different AGP card because the one you have is ancient, and it's not like you're going to use it anymore after you upgrade.|||AGP is faster than PCI, so go with AGP, note: AGP stands for Accelerated Graphics Port).

Some places should still sell AGP cards with DVI out. There are many types of AGP 1x 2x 4x 8x, 8x cards are the only ones that support DVI and the only ones that still sell|||You shouldn't add a PCI graphic card as it is much slower than AGP. As far as i can think of you should have meant PCI-Express, and if you have PCI-Express you can not have an AGP slot and vise verse. So if you have AGP go fore AGP cards but if you have "PCI-Express"(not PCI) go for that(I don't think you have it as your computer is fairly old for PCI-Express). Unfortunately due to the speed of AGP I don't think you can get a high-end graphic card (DirectX 10) but you will be able to get very good ones(ATI X1950 or Nvidia 7950).