A ***** já tem a Sapphire 4850 com Dual Slot Cooler a 136,90€. It's the best bang for the buck solution...
http://www.*****.com/pt/pt/1483861/art/sapphire-technology/radeon-hd-4850-dual-slot.html
PS:Na mesma loja a Sapphire 4850 "normal" custa 139,90€!