I'm running on an X1100T with 12GB and a 6870 and it's super smooth on high settings at 1080p res. You'll be fine.
I can now afford to buy an Imperial Clipper, and my faction relationship is high enough too (though I'm definitely not baron rank), but I'm thinking I should grind up another 10m or so to cover incidentals. Ships are no fun if you can only get the base model.
This was me on my Python journey. Screwed up with my math and was 10m short of making it worthwhile, had to return it and lost 7m out of the deal. I ended up keeping my decked out T7 and just outright buying and kitting out an Asp to run around and do stuff besides trading.
I think the speed difference is crazy, I have all A stuff except power I think and the Asp is quick, but it "feels" like it handles worse than my T7! But it's also travelling at twice the speed. I have the KWS, and all the good stuff, plus it's cheap as hell to run compared to the Python. I couldn't imagine doing these little quests and such for rank in a Python, would cost me tens of thousands just in fuel, not much for a day, but I'm trying to get Imperial Clipper rank at the moment, think I might buy that ship too.
I'm pretty happy with all the ships up to Python and/or the Anaconda, the running costs are just not worth it for day to day stuff, as strict traders with proper fitting, I could see it. But I think I'll just eventually get a Type 9 and park it in a really busy station where there's always a short route that can net me 500k in 10 minutes.
Decisions ... decisions ...