The NVIDIA GeForce GTX 970M is not the GTX 970. If you’re thinking of buying a high-power laptop to connect your HTC Vive to, you should make sure that you have at least a proper GTX 970.
HTC has its own recommendations to make — it says that HP, Alienware and MSI have all made “Vive Optimized PCs”. MSI is going so far to say that it has the first VR-ready notebooks as certified by both HTC and Intel. In fact, it has five of them — all have either the GTX 980 or the GTX 980 SLI cards which exceed the GPU requirement of the Vive.
Of course, you can probably search through the inventory of a custom laptop provider for the GTX 980 and get a few options from other PC manufacturers, but MSI came to tackle the Vive first and it has HTC’s approval to market.
Just be prepared to pay beyond $2,500 for a good’un.