Originally Posted by dhenzjhen
I don't have 1300 core on air but I got 1245 unigine heaven extreme, vantage and 03 stable http://i.imgur.com/4Mvyw6x.jpg
1.36v load and temps only tops around 64c
Will test this week with ln2 if it's not good then going to sell for sure
...certainly capable of 'hitting' 1300+ / 1700+, like shown already a few pages back... http://www.overclock.net/t/1472341/msi-r9-290x-lightning-thread/140#post_21981926
...but as I state in the post, just ran a small render test as even within a few seconds, it picked up + 20 c, as good as the cooler is for air..
Good water-cooling and LN2 mean 1300+ w/ a decent sample for sure - probably much more. I ran Aquamark at 1274 / 1673 on air, that bench is short enough http://img.hwbot.org/u45468/image_id_1143118.png
....the basic capability is there, just the need the additional cooling for longer / harder benches.