yeah gpu will be heaps faster. aircrack-ng was like 500words/sec for me.. with hashcat its 19,000 words/sec (i just have a crap amd laptop gpu) I think with a 79xx for e.g you can get like 100-200,000 words/sec.
also theirs 30gig dictionary file you can find on torrent sites (actual download size is like 4 or 5gig or so.. i forget). Would suggest you split it into smaller files before you run it though.
I gave it a go with my medium dictionary (~90mill words/combos's) and had no luck. cbf trying with the bigger dict file.
you should use hashcat btw.. unless aircrack-ng supports GPU now ??
No, aircrack-ng does not support GPU. I'll give hashcat a try, thanks.