I read that booting into windows is much slower using the 960 or 950 over the 850 for some reason i dont remember.
True but not true.
When you press the power button, the motherboard and BIOS identify and activate all your devices, then tells Windows to start booting. Then Windows boots. It's a many-step process.
PCI SSDs add a few seconds to the first part (the BIOS initialization) - most PCI devices add a second or two, even simple ones like NICs. So does having more RAM. I've even had delays caused by cranky thumb drives and other USB devices. To say nothing of what happens when one of your devices starts to fail.
If you have certain combinations of drives and motherboards, the delay can be longer - I've seen ~10 seconds myself, but heard complaints of up to 30.
The second part (the actual Windows boot process) is crazy-fast with an SSD, and faster with a PCI drive, but not necessarily enough to make up the initial difference. So it might take an extra few seconds to get from pressing the power button to a usable Windows desktop.
But a faster PCI SSD will also save you time during normal use, though. So it basically comes down to that ten seconds or less during boot, to save time later with faster file transfers, application launching, etc. Most people will make that tradeoff. There's also the issue of how often you actually reboot. Most people use sleep mode instead - so it could be weeks or months between bootups. So it's just not that big a deal, imho.
TL; DR: any wingnut can grab a stopwatch and time something, but if they don't actually know what it is they're timing, their rantings are probably not helpful info.
