How are ASUS 7770 graphics card CrossfireX enabled?(https://www.asus.com/Graphics_Cards/HD7770DCT1GD5/)
if the GPU itself doesn't have a crossfireX connector (http://en.wikipedia.org/wiki/File:Sapphire_Radeon_HD_5870_%E2%80%93_2_CrossFire_connections_PNr%C2%B00311.jpg).
I've never seen or heard of a 4-way crossfire bridge or even a 3-way for that matter.
I'm looking to build a PC with four GPUs from the Radeon 7xxx series but I can't seem to find photo proof of any card from this series with crossfireX connectors except text or mentioning it on the box. I just don't understand how you can CrossfireX GPUs without an external bridge. I am missing something, do 7770 not need eternal bridges for four GPUs on the same motherboard.
if the GPU itself doesn't have a crossfireX connector (http://en.wikipedia.org/wiki/File:Sapphire_Radeon_HD_5870_%E2%80%93_2_CrossFire_connections_PNr%C2%B00311.jpg).
I've never seen or heard of a 4-way crossfire bridge or even a 3-way for that matter.
I'm looking to build a PC with four GPUs from the Radeon 7xxx series but I can't seem to find photo proof of any card from this series with crossfireX connectors except text or mentioning it on the box. I just don't understand how you can CrossfireX GPUs without an external bridge. I am missing something, do 7770 not need eternal bridges for four GPUs on the same motherboard.