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I'm currently running two 5870s in Crossfire. They have 1 gigabyte of video memory each. It is likely that in a month I'll be playing many games at a resolution of 7680 x 1600 which leads me to wonder if the cards are up for the task. As it stands now, when I run a game at 5120 x 1600 I can't enable anti-aliasing above 4x, as the game just won't display anything. I feel that this might be because of the limited video memory.
What I'd like to know is if these two cards are capable of running games without anti-aliasing at the higher resolution and I shouldn't upgrade. Or if I'd suffer a huge performance hit, or if they can't run it, what are my options for a substantial upgrade to replace both cards? That is, if I buy one card to replace both, I'd like a performance increase if possible, and this way I could upgrade again to another card for crossfire later.
I have a 1000w power supply so I'm hoping that'll be enough for whatever suggestions you guys come up with.
AsRock Z710 Extreme7+ motherboard
Intel i7-6700K Skylake 4.0 GHz processor
8 GB DDR4 3600 mhz RAM
Samsung 850 Evo 2.5" SSD
Samsung 950 Pro M.2 SSD
Haf X case
Two MSI 980 Ti GPUs in SLI
Three 30" U3011 monitors at 7680x1600 resolution in Surround
An additional 27" Dell 4K monitor
Basically my gaming rig is made of money
El Psy Congroo