Which one of these Graphics Cards is the Best, and why?

[El_Mayo]

Sparkle GeForce 9800GTX+ 1GB
http://www.cclonline.com/product-info.asp?product_id=30351&category_id=693&manufacturer_id=0&tid=sx98gp1024d3-nm

BFG GeForce 9800GTX+ OC 512MB
http://www.cclonline.com/product-info.asp?product_id=25320&category_id=693&manufacturer_id=0&tid=bfgr98512gtxpoce

HIS Radeon HD 4850 IceQ4 1GB
http://www.cclonline.com/product-info.asp?product_id=28862&category_id=776&manufacturer_id=0&tid=h485qs1gp

HIS Radeon HD 4850 IceQ4 TurboX 512MB
http://www.cclonline.com/product-info.asp?product_id=27731&category_id=776&manufacturer_id=0&tid=h485qx512p

Sapphire Radeon HD 4850 TOXIC 512MB
http://www.cclonline.com/product-info.asp?product_id=28793&category_id=776&manufacturer_id=0&tid=11132-04-40r


Zotac GeForce 9800GTX+ AMP! 512MB
http://www.cclonline.com/product-info.asp?product_id=24986&category_id=1&manufacturer_id=309&tid=zt-98pes3p-fcp

ALSO which is more important?
All this stuff:Core Clock,Shader Clock,Memory Clock,Stream Processors
or is the Memory more important (1GB>512MB)

 

[customisbetter]

All of those cards have equivalent performance depending on resolution of your monitor. If your monitor is above 1680x1050, get a GB card. Other than that, they will all perform similarly.

good luck bro.