hey guys, im currently running 4k with my r9 290 and im pretty happy with it in most of the games. but looking forward to gta 5, i am thinking about getting a second r9 290 for crossfire. and here starts the problem: my board only offers one 2.0 X16 slot, the other slot is only 2.0 X4.. does anybody use such a strange combo like i want to use and can tell if, and how much performance i may lose?
That may be a problem as the r9 290 uses the PCIe lanes for crossfire data. if you had a card that used the old crossfire bridge It may be alright, but what your proposing is transferring 32gb (bi-directional) 2.0 x16 to a 8gb (bi-directional) 2.0 x4. that may cause your 2.0 x16 to slow down to x4 to match the slowest slot. I think...
Yeah, it's hard to answer this since most people have not encountered this situation. Perhaps Hilbert could shed some light on this........................wink, nudge...:nerd: Also, isn't GTA5 supposed to be getting Mantle? That may help if you can only realistically run a single 290.
mantle is not confirmed. also mantle will only help when cpu limited, and im pretty sure i will not be cpu limited in 4k^^
