It is estimated that the smaller of the two steamrollers will on par with an Core I5 3570k Ivy Bridge, whereas the FX9650 will be up around the Core I7 3770K Ivy Bridge Platform, but still around 20% behind Haswell. Now, that 20% behind Haswell is only in performance vs power, not just performance. Steamroller will perform with Haswell im certain of that, it just takes more power to do it. As long as your not worried about getting the most power possible out of lower wattage, it really dont make a noticeable difference. That is the only area Intel enthusiasts can actually claim a victory is power vs performance. Now to your question... Steamroller is basically refined Piledriver architecture, but AMD is saying a 20% to 30% decrease in power draw, lower latency, inter-process communication tweaks, and better dynamically share L2 cache. What does all that mean? Probably a little better performance on benchmarks and intense CPU applications like video editing, but in real world noticeable gameplay and general everyday tasks, I doubt a user with a good AMD motherboard, An FX 8350, and a decent GPU will be able to tell much difference at all. My advise, buy an upper end AMD AM3+ mobo, an FX 8350 and go with that for a year or two, let steamroller come out, AMD work out any bugs, and drop the price then swap up. Steamroller will be AM3+ socket anyway, so you probably won't have to upgrade mobo when you upgrade to steamroller, just flash bios....~~`happy gaming