Although Nvidia just launched the new GTX 750 on desktops last month, its laptop line today moves up a class with the reveal of its new 800M series GPUs. The lineup, which includes the new gaming-centric GTX 880M, GTX 870M, GTX 860M, GTX 850M, and mass market-focused 840M, 830M, and 820M.  Each of the new GTX 800M chips offers significant speed improvements over the previous generation, with gains ranging from 15% to 60% in terms of overall power. The GTX class chips, Nvidia says, are capable of running games at 1080p at high or maxed out settings at 30FPS or above.

Several laptop makers are introducing new and updated laptops to take advantage of the chip, including the Alienware 17, Lenovo Y50, MSI GT 70, GT 60, GS 70, and GS 60, and Razer's new Blade Pro and staggeringly high-resolution Blade Pro.

While each of the new chips offers the expected boost in performance and energy efficiency, Nvidia is also making notable expansions to its GeForce Experience software, beginning with Battery Boost — a new tool for automating and managing battery consumption when away from a power source. Battery Boost works alongside Nvidia's existing Optimus GPU switching software to maximize battery life by automatically adjusting game settings to less battery taxing levels whenever your AC adapter is unplugged. When enabled, Battery Boost will reduce your games' graphics settings to extend play time by up to two times the average length.

Players can also dictate the type of performance they want on a per-game level. For example, within GeForce Experience you can set Battery Boost to lock framerates in Tomb Raider at 60FPS and medium settings whenever you're unplugged, but drop less framerate-dependent titles down to 30FPS. Most importantly, all of your settings will revert to full quality whenever you plug your laptop back in.

Nvidia is also finally bringing its ShadowPlay and GameStream software to laptops. Previously reserved for its desktop processors, Nvidia's free ShadowPlay capture tool can record 1080p gameplay footage, as well as archive the last 20 minutes of gameplay with a tap of a button — not unlike the PS4 and Xbox One's share functions. It also has Twitch TV streaming functionality baked-in, including picture-in-picture camera support. GameStream on the other hand, brings PS4 Remote Play-style local streaming to laptops, allowing players to stream PC games from their laptop to the Nvidia Shield handheld from within a shared local network.

ShadowPlay and GameStream are not only available for new 800M series-enabled laptops, but also older 700M and 600M laptops as well. And again, all for free.

source: ign 

I've been looking into the Lenovo Y50 for college, and i find these graphical improvments very exciting!!

M series? Darn it... I was hoping they would show the desktop lineup already... I know its important for people with laptops but come on Nvidia, I want to upgrade already!!!

Man does my GT650m feel outdated, lol.

Still runs everything I throw at it though!

When is Nvidia gonna roll out the 800 desktop series?

Nvidia already released what should be a few cards of the 800 desktop series - but on the 28nm architecture.

If they are going to save the name for the 20nm process, it could take a while yet.

In fact those 800m cards are close kin to the GTX 750 cards. Despite what Nvidia might claim, they shouldn't be significantly better than the 700m cards on practice... they are a bit more power efficient though.