Arne Saknussemm wrote:
I can answer number 1
Assuming you have nothing in the fourth PCIe slot (i.e. your SLI is on recommended 1st and 3rd slots) you will not lose any PCIe speed
@adamr For #2 use Macrium Reflect to backup your existing SSD and transfer it to another. Just need a spare USB stick to create recovery media and restore your original image to the new drive. Its actually pretty good software will even resize the partition automatically.
Edit: Yeah, it's free.
Edit 2: Source: I used it last night to migrate my Win 10 install to an Intel 750 1.2TB SSD from a 16TB 4x4TB RAID0 array. Worked a treat. Have a snack ready it will likely take all day.