http://www.techpowerup.com/
http://www.techpowerup.com/reviews/ASUS/ARES/
http://www.techpowerup.com/reviews/ASUS/ARES_CrossFire/
A couple of reviews on the 4gb Asus Ares, and then in crossfire. They also test it paired with a 1gb 5870 and a 2gb 5970 in various crossfire combinations. This can answer a lot of potential questions about needing the extra memory. 200fps in Dirt2 any resolution lol.
http://www.techpowerup.com/reviews/ASUS/ARES/
http://www.techpowerup.com/reviews/ASUS/ARES_CrossFire/
A couple of reviews on the 4gb Asus Ares, and then in crossfire. They also test it paired with a 1gb 5870 and a 2gb 5970 in various crossfire combinations. This can answer a lot of potential questions about needing the extra memory. 200fps in Dirt2 any resolution lol.