I recently purchased an updated 15" Macbook Pro (like 7 days ago.) I keep reading all these threads about why people are skipping this model and waiting again for what they hope will be the end all be all computer of their dreams. I get caught up in the mess also, thinking "maybe i should take mine back and wait...." but really? Why? I have the most up to date bad a$$ rMbp there is. Why should I look at these comments and wonder if i need to take a computer back just to get another with a slight modification in a couple months? The wait for skyline will be over and then what? Will we be happy?
Probably because the rMBP released a few days ago is almost identical to the one they released in 2013. It uses the same CPU and has the same Graphics if you're buying the base model which probably most people buying it will do because it's cheapest.
And if you buy the one with the M370X you're buying a rebranded GPU from 2012 that is GCN 1.0 - AMD is about to release GCN 1.3 equipped chips in the Radeon Fury X and other chips derived from that architecture. Would you buy an Ivy Bridge CPU today if Intel called it Broadwell? I wouldn't.
It has the same maximum memory, same SSD sizes, although the newer one is faster it's not noticeable in real world usage as the old SSD was already pushing 1GB/s reads on the high end 1TB config and 750MB/s on the smaller sizes.
And we all know that Skylake is coming and with it comes a large change. First of all, it will include a 100% GPU performance improvement over Haswell, 50% over Broadwell. Secondly it has a 10-15% increase in CPU performance. It also supports DDR4 Memory that works at a lower voltage which means increased battery life.
We know that the Skylake equipped rMBP will have USB-C ports which are the future of the USB standard. If you're intending to keep this notebook for 3 years you'll want USB-C as the entire industry will switch to it over the next 24 months, you can expect the Skylake rMBP in 6-8 months from now, right in the middle of that transition.
Skylake will also bring with it Thunderbolt 3 which can power Apples rumored 5K desktop screen through a single cable.
So lets just recap. Skylake rMBP brings with it, improved CPU performance, doubled GPU performance, new ports that will become the industry standard, 5K single line output for compatibility with Apples 5K display, USB 3.1 (10Gb/s), faster and lower power memory, improved battery life.
The upgrade from 2013 to 2015 with the Haswell rMBP includes, the new force touch trackpad and a mildly faster GPU (check Arstechnica review for actual benchmarks, it's mildly faster than the 750m, 5-10%, not 70% like Apple claimed.) Skylake is just a much much larger upgrade and it's coming later this year, it's silly to buy a 2013 Notebook today when the new model with latest generation everything is right on-the-cuff of being released, unless of course you're a millionaire then get every model released of course.