I want to finally dive into SSD but I have a concern. Which would be the better choice, a 120 GB Intel 510 SSD (SATA3) or a a 120 GB Intel 320 SSD (SATA2)?
I currently have a Gigabyte P55A-UD4 motherboard with 16 GB of DDR3 RAM (Disabled page file) and an XFX ATI Radeon 5850. If I get the 510 (SATA3), I would be able to get a drive faster than the 320 (SATA2). Unfortunately implementation of SATA3 on the motherboard would reduce the PCI Express speed to be reduced from 16X to 8X. I believe there will be a 4-8% penalty to gaming FPS. Is this worth the tradeoff?
No... it isn't worth it IMO! The Intel 320 is a very good drive and is a vast improvement over a STD hard drive. I won't sacrifice gaming / graphics performance for a little improvement with the Intel 510 (remember you are proabaly running a Marvell SATA III, which has disussed limitations over the Intel SATA III controller).