Anandtech posted a review on the Alienware M17x R4 Notebook

Alienware recently updated their Bronze Editor's Choice award-winning M17x R4 gaming notebook to include Intel's Ivy Bridge processors and optional AMD Radeon HD 7900M series graphics or NVIDIA's new top end GK104-based GeForce GTX 680M GPU. With the move we also get mSATA support inside the chassis. The big draw with our review unit is the NVIDIA GeForce GTX 680M, which promises a substantial performance improvement over last generation's top end GTX 580M/675M, the kind of generational jump we haven't seen on the mobile side in some time.

At the same time, Alienware's M17x R4 remains largely unchanged while Clevo, MSI, and ASUS have all continued to incrementally update their gaming notebook designs. I've also had the privilege of owning my own M17x R3 over the past year and have new insights to offer on what it's like to live with this chassis design after an extended period of time. Is Alienware smart not to mess with what looks like a winning formula, or is the world passing them by?

  Alienware M17x R4 Notebook Review: Ivy Bridge and the GeForce GTX 680M