Thought I'd give people an update on what it's been like gaming at 4K... Even with the 30Hz limitation, Farcry3 at Ultra settings at 4K looks stunning and runs smooth. Been playing Borderlands 2 and it's the same. I am having trouble with Skyrim, as it gets sluggish when turning around quickly. My version is heavily modded, so it is possible there are some problems yet to be fixed with that community. I know at 1080 I didn't have visual issues, but at 4K I'm getting the words "level up" always displayed on the screen. Can't find any info about anyone else seeing this, but I did a reinstall and got the same issue even without the mods at that resolution.
Tomb Raider looks sick at 4K, ultra. I can't understand how anyone would say 4K isn't worth it. I can tell you this, unless you're blind or just outright ignorant, there is a HUGE difference. Movies on my bluray player coming in HDMI 1.4 @ 60hz look amazing, but even running off my PC with Cyberlink Powerdvd 14 @ 30HZ (the pc is doing the upscaling to 4K), I can see far more detail and better colors. Games like Farcry 3 and even GTA4 at 4K display so much more on the screen at proper spacing so I've noticed far more accuracy in aiming, steering, collisions, ease of recognizing textures behind others..... Sure 1080 looks fine on a 1080 screen. Set at 4K screen next to it and you'd be amazed at the difference you don't realize is being lost.
HDMI 2.0:.... I'm really upset about this part of the set/w gpu co-op. I'd have thought by now there would be options, but we're in the 10th month of the 2nd year of 4K and haven't heard buttkuss from either GPU company. What I have now in my stats does an amazing job, so I'm not complaining. But you DO NOT need SLI to enjoy 4K gaming. My components aren't the best out and I'm enjoying the hell out of gaming. Anyway, if anyone has any questions about how things run, I'd be glad to tell you what I'm seeing.