They are both identical as far as their arch, however the 950 has a higher stock clock, so its faster at stock. It also has a higher multiplier, so it will definitely be easier to overclock, and possibly reach a higher OC. Id say go for the 950, unless you can find a 930 for cheaper than $15 less.
Yeah, technically. It depends how good your RAM is. Higher multiplier makes overclocking easier, but both can reach the same max frequency. If you think you have good RAM, and you can push it a bit, do 930. If not, do 950. I might go with the 950, for the sheer reason it isnt much more expensive. What are you using this for anyway?
Mainly for gaming. Going to be using 2 GTX460s in SLI. I haven't ordered the ram yet. I am still researching that as well. I have ordered the mobo, ps, hd, case and windows 7. I still need the second gtx460, cpu, bluray drive, and ram. Basically all I need to get it up and running is the cpu and ram. I have an extra dvd drive I can use for now and one GTX 460 from my existing computer. I will wait for a good deal on the second GTX 460 and bluray drive.
I would like to get the ram and cpu ordered in the next few days so I can start putting it together next week. I am still on the fence about the 930/950.
Honestly, its up to you and you finances, $30 isnt much for what your getting, and id recommend spending the extra money on better RAM if you choose the other option. Honestly, both are the same, both will OC to the same point, and the 950 just has a higher multiplier. If you think you are a good overclocker, get the 930, if not as good, 950.