difference of ati catalyst and radeon vga drivers?

[rimartic]

Hi
my desktop pc is AMD system
main Board:MSI 990fxa-GD 80
Graphic cards: Crossfire of 2 Sapphire " R9-270X "
NOW:
1- What's the difference between ATI Catalyst Chip set Driver and AMD Radeon Adernalin Driver?
i mean do i have to install them both or Radeon Adernaline will be good for both Graphic card's and motherboard chip set?

2- whats the difference between " Realtek Ethernet LAN, Driver " and " Realtek PCI-E LAN, Driver "?

3- Altough my motherboard is originally best for windows 7, but do you suggest i install windows 10 on it? i mean there are only 2 new updated Drivers for win10 - (Realtek Ethernet-LAN and - HD Creative Audio Driver
so should i go for windows 10?
CPU: fx-8350
RAM: 16 gig of 1600mhz DDR3
M.Board Bios: E7640VD6 - Ver: 1.0.0.1

 

[King_V]

1 - The ATI Catalyst is an older driver. I would suggest using DDU to fully uninstall it, and install the latest available Radeon Adrenalin driver.

2 - I don't know this one.

3 - Any original "best for" is meaningless. Windows 10 didn't exist when that was written. I'd strongly suggest backing up all your data and doing a clean install of Windows 10, rather than an update of 7 to 10. There's no real reason to hang on to Windows 7.