2600XT vs 8600GT vs 3650 [native HDMI]

lienly

2600XT http://www.elsa.com.tw/Big5/Products/detail.asp?newsid=421
8600GT http://www.leadtek.com/cht/3d_graphic/overview.asp?lineid=1&pronameid=380
3650 http://taiwan.msi.com.tw/index.php?func=proddesc&prod_no=1422&maincat_no=130&cat2_no=137

they all have 256 RAM [DDR2 or DDR3], native HDMI port [no need to use DVI/HDMI converter], around same price range [NT$3700].
which one is best to playback 1080 h264 file?