Both should work fine. You won't be getting the full performance since your Mac is limited to SATA 3Gbps while the SSD is capable of up to SATA 6Gbps speeds, but the difference will still be significant.
I see, that sounds like quite a loss in speed. Would it be noticeable in everyday running of applications or is it more for things like transferring files etc?
I just need to decide whether this will do for now while my MBP is still running fine or take advantage of the higher speeds and get a brand new rMBP.