That's just the CPU. There are other things like SSD/RAM I/O performance which the mid-2012 15" rMBP just won't be able to keep up. The NVMe/PCIe SSD is a lot faster and with lower latency than the SATA 3 SSD in the old rMBP (Apple moved to PCIe with the late 2013 model moved to NVMe from AHCI with the late 2016 models).
If your compare the SATA3 SSD performance to the current NVMe/PCIe, we're looking at a jump from around 400 MB/s read and write to over 2GB/s. That's a huge gain.
Then there's the GPU. The GT650M is old and can't run most of the games released in the last two years.
Plus there's Thunderbolt 3 which allows you to add external GPU and brings the performance of the MBP up another notch or two. That's not possible with the mid-2012 model. And I'm speaking as someone who also has been running the mid-2012 model for the last 5 years. This year is the first year when my rMBP starts to feel slow.
True. But for normal tasks, general user tasks there isn’t a strong argument for spending how much we have to spend in Canada on these new macs. It’s crazy.
The 2GB/s speed isn’t taken advantage of for those kinds of tasks and a mid 2012 non retina MacBook Pro with a sata 3 ssd will boot up and launch programs like safari, pages, one note in similar times
Of course, that is thrown out of the window for professionals who will be using that read write speed when layering complex tracks or editing 4K videos, editing photos, programming etc
But for people like myself who surf the net or use office suite and pretty much that (even light development), work stuff aside, a 2012 rMBP will keep up just fine.
Processing power is really adequate these days, yet we have become a society obsessed with geekbench scores and the like. A good friend of mine who has produced some pretty incredible stuff, was using a mid 2010 MacBook Pro with a core 2 duo chipset until last fall when he upgraded.
He’s the one who drilled into my mind that we really have more power than we need for most tasks.
Now granted, he isn’t a high end video editor or photo editor or works in graphics, but he’s a pro with music and for music, any 2012 onward high end Intel chip coupled with an ssd is way more than enough grunt.
So to that end, for most mass market users, myself included a MacBook from 2012 is still very capable