After several days running on and off, my Collatz cojecture is finished... 19 hours, 54 minutes, and 13 seconds of GPU processing. I also have Primegrid PPS Sieve WU running for 19 hours and apparently it might take about 3 more hours to finish.

The WindPad is definitely not made for hardcore crunching, but i will run non-cpu intensive projects on it like freehal, surveill and wuprop.