G3 - texture heavy or shader heavy?

Hi all,

Assuming my game ever turns up, has enough experimentation been done yet to discover if this game is more texture processing heavy or shader processing heavy? I ask largely to determine which graphics card to update to - NVidia's having better texture fill rates (esp. multi-textures) and ATI's having better branching shader performance.

I understand G3 uses the GameByro middleware, as did Oblivion, but I think that has little relevance because shaders and textures will have been added to the engine seperately by both developers. Oblivion did however perform better on ATI cards.