I'll assume you're using W7Pro64.... or W10Pro64. Any 32-bit OS is not going to give you what you need. You can W10 activate your workstation if you know how to clone your W7Pro64 install and then just go back to W7 until you're ready to truly upgrade. This is no cost until end of July, and possibly beyond. Once you W10 activate your box it stays that way for the future.
I liked the Raptors back when.... the referenced Intel SSD is a quantum leap ahead of that, however. The difference between a 7200 rpm HDD and a 10,000 rpm raptor was noticable as a bit snappier. The SSD is a huge change, in contrast.
A benefit of your Raptor drive is that it probably is a 2.5" form factor in a 3.5" form factor Western Digital "Ice Pack" adapter.... you can use that Ice Pack for your new SSD to keep cost down. That shifts the SATA data/power connectors to the left properly in the drive drawers.