I'm definitely not blind. I definitely am NOT noticing any disturbing lag--though I'm also not hanging out on Facebook all day---not a single one of my 'tools' lags in any way, shape or form---the entire Adobe creative suite, Maya, FCP7/X, Compressor, Logic, Aperture, and Chrome/Safari/Mail are constantly 'On'...and No Lag! I promise--it's nonexistent.
Yes, there are some 'busy' sites (FB/TechCrunch) and poorly coded sites that'll slow the typical 60fps down to a still very usable 25-40fps. This isn't a problem, it's more of a software 'challenge' that will continue to refine itself with OS updates. It's most certainly NOT a GPU issue--the Intel 4000 is MORE than capable of driving these pixels...as I'm typing this on mine now, utilizing the 4000...no. lag, period! It (along with it's predecessor the 3000) drives the TBD just fine on it's own (folks do this often with their 2011 Airs---guess what? No. Lag!).
There is no 'problem' here. Please, name the creative software you're using that exhibits the 'lag' you're going on about. I'm not sure there isn't a piece of software that I or my fellow colleagues don't have--or can't get in touch with. I'm genuinely curious as I'd like to know where you're seeing this devastating, 'shame on you Apple' issue!!
I own the 2011 17" and a pair of 15" rMBPs--I've owned 17" MBPs for the past 6 years. Sorry--you're missing the 'real' differences between the two platforms. I was pissed they dropped the 17---all the way up until I saw the new rMBP in person. These wipe the floor, productively speaking, with the 17s--over 50% increases in some speeds for finalizing on my end---whether I'm rendering, ripping, or transcoding...manipulation of big photo files and working with large scores and dozens of tracks in Logic or Audition--just blows my 17 out of the water. My 17" is the later 2011, 2.4/Samsung 830--256 & original 750GB spinner in Opti-Bay. It's no slouch--in fact, it's an awesome rig--BUT, the rMBP is a step above all across the board. The compliment of I/O alone was worth it to me...and I own at least a dozen FW 800 DRIVES!!! USB 3/Twin TB and HDMI, =Awesome flexibility for external scratch!!!
The screen--absolutely phenomenal. It's a 'no brainer' if you're doing video work...as it sounds you and I are more alike than different!! Have you actually use the rMBP or are you going by what you've heard?
Any chance you can share what you've worked on with NatGeo? I've been working with NatGeo/Discovery/History for the past 7 years. The host of "Alaska' footage and reality TV has been a huge boon to us up here!!! Milking it for all it's worth---from Dutch Harbor (crabbing) to Unalakleet (flying) to Kotzebue/Bethel/Nome and here @ home with the State Troopers--what an awesome time to be in the business.
As well---the 'gloss' from the earlier TN panels (not the anti-glare) has been cut significantly...yet retaining the color 'pop' generally attributed to those glossy monitors. This is easily and finally the best, most accurate monitor I've ever owned on a laptop. Nice to able to casually grade without plugging in to the Iggy!!
If you shoot SxS, buy a deck---why in the world would you loaf around a 17" laptop to offload your footage when there are many dozens of options on the market that are easier, more efficient, portable and specifically made for your Sony rig? I shoot on P2 cards--so I drug an old G4 with me everywhere before it died---the new PCM slot was useless to me when they shrunk it down back in '08 or so.
Not sure why the need for ethernet/FW800---USB3 simply blows FW8 out of the water--and TB doubles the speed of USB3. Why stick with old and slower technology that never really caught on...when you can move to the speed offered my the new compliment of I/O on the latest machines??? Makes no sense if you're serious about video editing...sorry. The ubiquity of cheap USB3 drives on the market should hold an editor over until the TB peripherals are more abundant
To me--it's obvious you've never actually seen/heard the new rMBP when you bring up 'speakers' as a 'pro or strength' of the 17. Hardly---again, the new rMBP smokes my 2011 17" sound wise. Not even a contest there. Apparently without real, true hand's on experience with the machine, I think this makes YOUR argument 'null & void' eh?
j