Well yeah. Thanks. Was the HD5970 released after the 5870?
The Nvidia GTX 480M is currently the fastest mobile graphics solution (single gpu). However, according to HotHardware, last generations dual GPU setups still beat out the 480M.
In terms of graphics performance, this is the best notebook that I could find: AVADirect Clevo X8100 Core i7 Gaming Notebook Review - HotHardware
However, a new notebook was recently announced with dual 5870m (so basically 5970M) which should offer the best performance. Eurocom Launches X8100 Leopard Gaming Notebook - HotHardware
To cap it all off: take my recommendation and forget about a "gaming laptop". It sounds great at first, however you'll always need to be at an outlet, the laptop will most likely overheat at times, and performance will never be as great as a desktop. Desktop replacement laptops are not known for their long lifespans either.
I highly advise you not buying a "gaming" laptop, it's an oxymoron if you ask me. I almost bought one myself but am glad I made a much more powerful desktop for less and have a notebook to travel with. For portable gaming I stick with handheld gaming.
Intel i7...8GB of RAM...choice of GPUs including dual 285Ms or dual 5870s...an internal HDTV tuner...1920x1080 screen...4 hard drive slots....
It doesn't ship until August though and no word on a price but my god, that's one beast of a laptop.
Hard drives are heavy. That thing is gonna weigh like twenty pounds.