I have a Pentium Dual-Core e5800 3.2 Ghz, a Motherboard Foxconn G41MD and 4gb of Ram DDR3
You should be fine, but like I said your losing the "maximum" bandwidth it has to offer which will effect performance, but not on a scale thats noticeable.
I cant be 100% sure, but the difference in the lost of bandwidth you would get wouldnt be to noticeable really. I would worry more on a bottleneck on your CPU, what motherboard and CPU are you running?
I have a Pentium Dual-Core e5800 3.2 Ghz, a Motherboard Foxconn G41MD and 4gb of Ram DDR3
You should be fine, but like I said your losing the "maximum" bandwidth it has to offer which will effect performance, but not on a scale thats noticeable.