I have not worked on a Mac for a very long time.
That article seems to suggest Adobe is equally fast on either if the hardware is the same.
I really dislike the whole app store/8.1 desktop direction everything is taking. Win7 will do me 'til 2022 when they stop supporting it. Is the new Mac operating system going in the app direction as well?
Surprisingly, The Mac version of Indesign is much smoother and faster even on the older hardware.
We started our transition back in 2010-2011, with one iMac. It was more of a test run. I despised Macs before this, but I got so tired of fighting problems with Outlook and Windows that I needed to do something different. I would have random problems - especially with networking and backups. The PC I had purchased was a laptop and it cost $1000 more than iMac. It was very good. But it died after about 4.5 years or so. I wasn't moving the machine around anymore so I decided to go with it.
The trial went so well over the next two years we replaced every machine with a Mac including the server.
The entire system went better. I still run multiple Windows systems in virtualbox. I have to. I like windows XP (7 is okay, but I don't find it as configurable/hackable to what I want). I would use a virtual system on ANY computer I run no matter what the base system is. That's another thread though.
I ended up getting a PC last year and spec wise it was better than any Mac we had, other than the screen. But it could not keep up and I didn't have the space for it. I don't know if it was Windows 8 or not. But I sold it. I installed the RIP software in a virtualmachine in Windows 7 and the Mac drives it perfectly and much faster. Mutoh said it wouldn't work, but it wasn't a problem at all.
I stopped at our electric company who we print for and their marketing director just got a new PC with Indesign on and she asked me for help with it. I went and they purchased a new Dell for her. Excellent machine but it was not smooth or quick in Indesign, confirming my Indesign speed issue wasn't just me. It lagged and dragged. Redraw was not smooth at all. I'm guessing it's not the hardware but something with the OS.
Maybe Microsoft needs to go all in with OpenGL instead of DirectX and tie to one standard only and then force application designers to use it to where it's not just for 3d but all points of the GUI. I think this might be why Indesign is smoother on the Mac.
Oh well, if you are happy with what you have don't bother switching. That's what it comes down to.