I want to run Photoshop and Light room on my mac, but I'm worried that osx only running eight bits of color will lead to lower quality picture results. Should I stick with Windows?

Question

The headline sums it up. Will running the programs in Windows result in better pictures? Do professionals do touch ups on Mac? Thanks for your responses! I'm new to this.

Answer 1

"Deep colour" - meaning a 10bit colour driven display - can only be achieved in hardware with a screen and a graphics card that support both. The average Windows system does not support this - few do. Only Windows workstation level graphics cards from AMD and Nvidia support this option. These are generally more expensive than consumer cards of the same caliber.
Many screens with so-called 10bit support often fake the extra colours by introducing dithering - true 10bit displays are only manufactured by companies such as Eizo - and they are expensive: prices range to around almost $2000 for a 24" 10-bit screen from Eizo. You also need a special HDMI cable, I believe.
Also, the software must support a 10bit workflow. These are far and between. I believe even Lightroom still does not support this - Photoshop does from version CS5 and up.
If you have a hard time understanding all this: no worries. The reason why you are confused and worried is because you lack the know-how, and, subsequently, reading all that "10bit colour is unsupported on Macs" made you anxious.
In reality, while Windows does support this (and Macs do not), almost no-one uses it currently (beyond high-end film/FX work, cad/cam, and a couple of high end Photographers). Any generic consumer and even most workstation level Windows machines will not support it unless all the hardware and software is properly set up. And it is very costly. Colour management becomes even more intricate with 10bit displays.
In a nutshell: much ado about nothing. A Mac is great for design work, as are well equipped Windows machines. By far the majority of professionals in Photography, Graphic design, Video and Effects editing, and so on, currently work without 10bit hardware, and produce outstanding work.
Unless you are spending at least around $2000 on screen hardware, and limit yourself to a very small group of applications that also cost an arm and a leg, you are not going to be able to use 10bit on Windows either.
You can forget what you have read - it is of no consequence to you. (or if you are interested, learn the technical backgrounds.)  Perhaps in 10~20 years the situation will have changed.