Oh ok so basically that computer market is the one which is at QTel signal near Jaidah flyover. I went there a couple of days and it was crap!
Could only find 2, 3 shops selling latest AMD Radeon GPUs and that too at exorbitant prices. One shop was selling R9 270X for 1500 QAR when I could get is easily in Pakistan for around 900 QAR.