The ultimate top five APG x4/x8 cards on the market today

As far as I can tell this is the most powerful AGP card that is still on the market. Do not expect to play ANY games on this though. http://www.newegg.com/Product/Product.aspx?Item=N82E16814139043

Edit: Correction. This is the most powerful. This is equal to the HD 4530M in my laptop, and I can play Crysis 1 on a mix of low and medium at 720p. http://www.newegg.com/Product/Product.aspx?Item=N82E16814161318

HOWEVER.. if your motherboard is old enough to need an AGP card your CPU is far older than mine and you are on DDR1 memory if not straight SD-RAM.

AGP cards haven't been produced in years and even the fastest are easily beat buy todays low end pci-e cards and integrated graphics. Honestly with that old of a system you should save the money for a new build.

Hi Jonathan - As others have said, they stopped making AGP a long time ago. The AGP cards currently available are horribly overpriced and no AGP card will work with demanding modern games. Any system using AGP is also going to be too weak for demanding modern games. However, thinking back about 6 years (or something like that, I dunno), I had an AGP system with an AGP radeon 3650 that played the games back then decently well. I dug through a couple boxes and found it. So if you are looking for an AGP card to play much older games, this card should do it.

Here's the card, it's an HIS 3650 DDR2 AGP version: http://www.hisdigital.com/un/product2-357.shtml

It was working just fine when I pulled it from the system. If you want it, send me a private message and I'll send it to you for free - I'm in the USA (you might need to cover shipping if you are outside the USA). It's worthless to me and I'd rather see you use it than spend money on obsolete hardware.

I would just like to point out that the 4670 is not the most powerful AGP card. The most power AGP card is the ATI 3850.
http://www.tomshardware.com/reviews/radeon-4650-agp,2383.html
In order, the most powerful graphics cards from ATI/AMD are as follows
4850
4670
4650
3670
3650

Other cards I have heard to be good ATI AGP cards:
2600
x1950pro (Have one, but its not working properly)
x850xt
X800xt
x850pro
x800pro (I have one. It's strong enough to play Fallout 3 pretty well )

Nvidia AGP cards:
7900 (I forget if its Ultra or what the ending is, but the 7900 is the best AGP car ever created by Nvidia. Pales in comparison to any of the ATI offerings)
7800
6800Ultra

By request of Mr. Phoenix,

Certainly. Please see these links that should answer all of your questions on the subject.
http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107-7.html
http://www.tomshardware.com/reviews/radeon-4650-agp,2383-8.htmlf

These links give some information on the ATI Radeon HD 3850 and the quality of graphics cards ranked against each other.

As you will see in the first link the Ati Radeon HD 3850 and Ati Radeon HD 3670 are ranked as being t the same performance level.
http://hothardware.com/Reviews/ATI-Radeon-HD-4670-Redefining-The-Mainstream/?page=6
http://www.anandtech.com/show/2616/6

I was slightly mistaken it appears when I said the 3850 was right out better than the 4670, but in a few different games the 3850 out performs, and in a few the 4670 out performs. It is a close call as to which is truly better.

To revise my list:
1) ATI Radeon HD 3850 or ATI Radeon HD 4670
2) ATI Radeon x1950xt
3) ATI Radeon x1900xt
4) ATI Radeon X1950pro
5) ATI Radeon x1800xt, Nvidia 7950GT
6) Nvidia 7900 GT
7) ATI Radeon HD 4650, Nvidia 7800 GT, Nvidia 7900 GS
8) ATI Radeon x850xt
9) ATI Radeon x800xt, ATI Radeon x800xl
10) Nvidia 6800 Ultra
11) ATI Radeon x850pro
12) ATI Radeon x800pro, ATI Radeon x800GTO
13) ATI Radeon x1650xt, ATI Radeon 2600 xt, ATI Radeon HD 3670
14) ATI Radeon HD 2600 pro, Nvidia 7600 GT, Nvidia 7800 GS
15) ATI Radeon HD 3650, Nvidia 6800 GT,
16) ATI Radeon x1650GT, Nvidia 6800GS
17) ATI Radeon x800, Nvidia 6600 GT

I do not feel the need to continue this list any further. Buying any graphics card older than what is listed for any purpose except playing Windows 98 games is pointless. If you have a card older than one of these you can easily buy one of these on Ebay. These cards have lasted a good while now and if you, like me, want a second computer to pay games on Windows XP that have compatibility issues with Windows 7 and 8, like Fallout 3 for example, getting anything worse than these cards will not work for you.

Games as intense as Fallout 3 are playable but barely starting around line 13. I currently have an x800pro in my system and I play on medium/high settings with AA turned off, at 1366 resolution. This has no effect on my FPS because my CPU bottlenecks the system first.

If anyone has any more questions please feel free to ask.