Which card is better, zogis Geforce 7600gs 512mb or zogis Geforce 7600gs 256mb? I own a dell dimension E510?

Zogis 512mb:

http://www.newegg.com/product/product.as...



Zogis 256mb:

http://www.newegg.com/product/product.as...



Not a legitimate intense gamer but I do plan on doing some gaming. How much of a difference in standard is there? and will they work economically with my system?



Dell Dimensio E510:

http://review.zdnet.com/dell_dimension_e...

Which card is better, zogis Geforce 7600gs 512mb or zogis Geforce 7600gs 256mb? I own a dell dimension E510?

These appear to be good models. Better consequently a 7600gs.

http://www.newegg.com/product/product.as...

http://www.newegg.com/product/product.as...



512mb is only needed if you're trying to play 1600 by 1200 or high. For these types of cards, it better to run around 1024 by 768. Any higher resolution, you might want a better power supply and video card.
If you approaching to game, I'd walk with the card next to more memory, the 512MB. If it's too expensive, then simply go next to the cheaper one. 256MB /should/ be fine, but in a couple years, it won't be nearly as pious as if you had gotten the 512.