Alienware AW2721D vs Dell P2421

Everything I say reflects my own and honest opinion. If you like 1440p, this monitor's specs are f***ing insane, right? Well, I couldn't have put it a...

I own all three models. I like the resolution of these monitors. It's uncommon, but it's much better for business application - and for browsing. U2410 had a 3/4" frame, U2415 and P2421 don't have a frame

I'm using a VESA certified KableDirekt DP 1.4 cable and two high end HDMI 2.0 cables, very tight and unnecessarily crowded port area, there’s plenty of space to spread them out more. - Noticeable overshoot in MS Office, web browsing (text) and other apps when using the faster or higher response time setting, sometimes noticeable during gaming as well, you are left using the slowest setting, fast

Typical gray-to-gray pixel response is 8 milliseconds, though it can be as fast as 5 milliseconds. Input lag—as measured with a Leo Bodnar Lag Tester—came in at a very good 10 milliseconds, just a tad longer than the BenQ SW2700PT, which remains our leader with a 9.5-millisecond input lag. Although the P2419H isn't built for gaming, it did a passable job in running Rise of the Tomb Raider and its benchmark sequence, with no unusual artifacts

The whole thing is much heavier than i expected, although this allows it to be very sturdy, and while the majority of the outer materials are plastic,...

I like the thin bezel design as I purchased two screens and I can place them so that they touch, creating a fauz-curved screen effect.