determinologyz :
ubercake :
I don't find any clarity problems with 1080p at 27". Now with my 40 1080p TV it would be a different story, but looks pretty crisp as close as 4-5ft+ away.
Theres a difference trust me and everything looks blown up at 27" 1080p and not as sharp as it would be at 1440p.
I know there's a difference. It's definitely a matter of preference.
I've used both and to me you cannot beat the lack of input lag and reduced blur the 120Hz screens offer especially if you're playing first-person shooters. With an IPS screen, since they're all 60Hz screens (those with guaranteed refresh rates anyhow), you have to turn on v-sync or the tearing is atrocious. Couple that with the inherent input lag of an IPS screen and you have input lag times two. This is a definite advantage for your opponent in a multi-player situation. For these reasons, I won't consider going to an IPS screen for gaming.
Also, I find the 1440p screens to pack too many pixels into too small of an area. Yes more information is showing on the screen and color accuracy is increased on the 27" 1440p IPS monitor, but text is smaller and targets are smaller because of the increased pixel densit, and tearing and blur are so much more noticeable on a screen that can only refresh at 60Hz.
This is why I'd only recommend a 1440p monitor to MMORPG and RTS fans. If you seldom play shooters, I say go for it with a 1440p monitor or 1600p monitor, otherwise I'd steer clear of them.
I wish they had a 30" 1440p non-ips monitor (so less input lag) with a 120Hz refresh rate. I think this pixel density would be more ideal than with a 27".
Since they don't offer something like this and I primarily play first-person shooters, I stick with the 27" 1080p 120Hz screen.