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They're just stickers. If you don't like them, then tear them off.

My sister-in-law bought a flat-screen LCD TV back when they first came out. Several years later during a visit, I saw that she still had all the stickers still on the TV, even a triangular shaped one that was in the corner of the screen. Being a little OCD about this stuff, I peeled them off; and she freaked out! Not only did she not realize they were stickers, she actually thought they were somehow important to the function of the TV.
 
I got fusion drive, 3.5proc, 4gig 780m. "old" one is late 2009, 27" 2.8 i7 4850 upgrade GPU.
So you did buy your old one at the right time, when the 27" screen was brand new. And you did buy your new one after only 4 not 5 years. Since your old one already was a top of the line quad-core i7, there are no major CPU architectural differences in the past years. If you had bought the 2009 entry-level 27" iMac however (like I did), the upgrade from a dual-core C2D to the newest quad-core i7 would be more substantial.
If I had known how little difference there would be, I wouldn't do it over, I'd have kept my "old" one for a few more years.
You've sold an i7 to buy an i7, that could have been a hint.
My iPad does 90% of what I need a computer for.... now if it ran solidworks I wouldn't need a desktop at all!
Even more reasons to stick with what you have. The only real differentiator between Macs today is if they have Retina or not. For playing the latest games at high resolutions you should buy a PlayStation 4 instead. While that may be counter-intuitive, it is definitely the right thing to do, as long as the new console generation is still young and up to date.
 
I'm wondering this also? Which, if any, existing Macs can support 4K (or, 3840x2160) at 60 Hz?

I think someone already asked, but I cant find it... Will rMBP with TB2 support 4k monitors at 60hz?

I gather the official line at the moment is no for the current rMBP. But that Windows will let you use 4k @60Hz over TB2, so it's clearly possible in the hardware.

Seems daft not to upgrade OSX to include that support soonish. In fact, I've bought one banking on exactly that.
 
Does a 4K monitor always have a larger color gamut (larger than AdobeRGB that is)? Or "better" color gamut?

They'll run the same gamut of gamuts (olol) like every other monitor out there. The consumer stuff will be rated against sRGB, the higher end stuff Adobe RGB, and the really high end stuff that'll make your face melt off is rated against Wide Gamut RGB

...and you'll have to pay an arm and a leg for that last one.
 
It's not a matter of "getting hung up" on anything. Some cameras I use in my profession actually have a censor with 4,000 pixels. Things like this don't need to be explained to somebody who doesn't understand 720 or 1080 because thats not who these products are made for. I'm just tired of the market misleading people. 160 pixels is 160 pixels. It's like a cashier charging you $10 for something thats $9.37 because 10 is easier to say.

Chill, 4K is actually a very loosely defined term by the CEA.. you're just getting upset over semantics. The powers that be clearly named it that because most people are ignorant when it comes such knowledge.

http://www.ce.org/i3/VisionArchiveList/VisionArchive/2012/October/4K-Displays-Decoded.aspx
 
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