very slow gpu wpa ocl hashcat

[nick]

I could find some.. But how could people on forums etc be quoting figures of 150,000 per sec, yet mine does just 2700? also, about 2 years ago my AMD HD5650 on a diferent laptop was doing 14 000 a sec. Both cards have 1gb memory So how could mine be 6 - 7 times weaker?
Ive never seen less than 5,000 per sec quoted, even for lower model cards.
Thanks