Apart from the childish insults in your post, being an owner of a 15" Retina MBP, you dont have a first hand knowledge of how a device with "only" an Intel 4000 graphics processor can handle Retina or NOT - which was the OP's original question. I was giving out information from sources who have tested that specific device, even my 10mins "play" is more reliable than your experience of owning a 15" rMBP which definitely resorts to its GPU anytime its needs the ummph (so technically you are not "an actual owner"). I also made it clear that I planned to upgrade from my MBA 2012 to 13" rMBP once the Haswell chips are in and
FYI I have been handling hardware for over 25 years as well being in the Web Development business. I would appreciate if you can put up an argument based on performance facts regarding Intels 4000 instead of resorting to personal insults (which does reveal lack of maturity but I am proud of you for buying an Apple product).
In the future, please read the OP carefully before jumping in.
My apologies if I 'insulted you'. It's definitely a question mark when someone chimes in with a link to a verge article exclaiming the machine lags and the thing to do is wait until the Haswell update. Your comment to me about losing credibility was what set me off....I've been using the 15" for almost a year and in 80-90% of general use application of the machine the 4000 is doing the work. I've got gfxCardStatus but have found I don't need to change the GPU for any sort of 'regular' work. The 4000 performs in parity with the 650m while scrolling or general UI animation. I'm more than familiar with the performance of the 4000...and I own an Air with the 3000 that is often hooked to an ATD. That said, I'll stick to my guns. Ten minutes in an Apple store isn't enough time to come to a valid conclusion on performance....of really anything. Phone, home, computer....it doesn't matter. I'd have thought by now....with all the other 'owners' in this thread telling you that they aren't experiencing detrimental lag...and The Solution has been available in nightly builds of safari that it would be enough....enough for you to understand that lag isn't an issue, challenge or will it ever be solved by a more powerful GPU. Software has been written to date for lower resolution displays. Apple, almost magically, figured out a way to double the pixel density maintaining the same 'resolutions' we are all used to. Now it's up to app and software developers to utilize XCode and update THEIR software to take full advantage of this wonder in engineering
To say the rMBP is anything less than genius is silly. If you've been involved with computers two and half decades, I don't understand how you've come to the conclusion you have. It's beyond me. As you can see from the rest of the 'owners' in this thread....the rMBP is an amazing machine. 13 or 15. Doesn't matter.
It's revolutionary...and hopefully the rest of the industry is in the same boat. As Anand mentions, 2013 SHOULD be the year of HiDPI!
Does the same happen on cMBPs? Is that a fact? All I know is that it happens on rMBPs. I'm amazed by the machine since day one (bought it July 2012) and would not trade it for nothing. But stating there isn't any lag does not make sense to me. Hardware or software related, there is lag. The reports about it are enough proof imo.
Read your comment until "If you don't own one". I do, it's one year old and I love it.
Which model do you have? It sounds as though you've seen 'lag' but you still enjoy the machine. Amazed since the day you bought it.
I can honestly say...the ONLY place a see any kind of UI frame drop is on Facebook while scrolling fast up or down. Something the casual user isn't going to do, nor notice.
Just trying to understand where this 'lag' issue is prevalent and/or noticeable. In Premier, After Effects, Smoke, Audition and photoshop....the main programs I'm using daily....I just don't see it. Nor do I notice anything while scrolling through websites....other than poorly coded, overly obnoxious flash sites (Ars, FB, and the verge are excellent examples)--- but that said, I can bring my core i7 2011 2.4Ghz machine to its knees in the same situations @ 1920x1200
J