A reference design HD 6970 2GB from HIS means that you're not going to see anything new when it comes to the overall layout. Towards the back of our card we've got two PCI-E power connectors; one a 6-Pin and the other an 8-Pin.
Closer to the front we've got our little BIOS switch and two Crossfire connectors and on the connectivity front we've got a Single-Link DVI, Dual-Link DVI, HDMI 1.4 and two mini DP ports.
Specifications and Overclocking
As we've mentioned a few times already, the HIS HD 6970 2GB we've got on our hands is just a reference one which means unlike the Turbo version we looked at recently, it doesn't carry an overclock. That means the clocks come in at 880MHz on the core and 5500MHz QDR on the 2GB of memory.
Of course, we'll be turning this card into our own version of the Turbo series by cranking up the voltage to 1.3v and overclocking the core and memory ourselves.
With a bit of time we ended up getting our core to 980MHz and the memory up to 6000MHz QDR.