I can't decide between two GPUs

I'm going to be building a gaming PC soon and need to decide a good GPU. What should I go for? :

http://www.amazon.co.uk/Sapphire-Radeon-HD7970-Graphics-384bit/dp/B008V25EWI/ref=sr_1_1?ie=UTF8&qid=1382052849&sr=8-1&keywords=Sapphire+7970

http://www.amazon.co.uk/Sapphire-11197-12-40G-HD7970-Vapor-X-Graphics/dp/B008I7YZJY/ref=sr_1_2?ie=UTF8&qid=1382053309&sr=8-2&keywords=Sapphire+7970

Any other suggestions are welcome.

go for the top link as its much cheaper and there is not much difference between the two

I'd get the cheaper one.