New GeForces are cropping up left and right lately. This past week alone, we've seen two desktop launches: that of the GeForce GTX 780 and the GeForce GTX 770. Now, Nvidia has let loose a whole batch of high-end offerings aimed at gaming notebooks. The GeForce GTX 700M series comprises four members, which are outlined in the table below:
|GeForce GTX 780M||1536||823||Yes||4GB GDDR5||2500||256-bit||160|
|GeForce GTX 770M||960||811||Yes||3GB GDDR5||2000||192-bit||96|
|GeForce GTX 765M||768||850||Yes||2GB GDDR5||2000||128-bit||64|
|GeForce GTX 760M||768||657||Yes||2GB GDDR5||2000||128-bit||64|
Nvidia doesn't quote maximum Boost speeds, nor does it say which chips these things are based on. Judging by the specs, though, I'm going to go out on a limb and say Nvidia is using the same GK104 and GK106 silicon that drive its GTX-series cards on the desktop (with the notable exception of the GTX 780 and GTX Titan, which are based on the larger GK110). We've asked Nvidia to clarify that point and are awaiting a response.
In any case, the GTX 780M seems to have a leg up over its predecessor, the GeForce GTX 680MX. Both GPUs have the same numbers of ALUs and the same amount of memory bandwidth, but the 780M has a higher GPU clock speed and can apparently run even faster thanks to GPU Boost. The GTX 770M, GTX 765M, and GTX 760M look like similar upgrades over the rest of the GTX 600MX-series. GPU clock speeds have gone up, but other specs are comparable.
According to Nvidia, the GTX 780M can run games like BioShock Infinite, Far Cry 3, and Tomb Raider at 1080p using "Ultra" graphical presets. The 760M can purportedly run those same titles at their "High" presets. That sounds pretty snappy for on-the-go gaming. Of course, you probably won't see these things in any ultrabooks or ultrathins—high-end mobile GPUs usually show up in thicker notebooks with beefier cooling.
Speaking of which, Nvidia says Acer, Asus, Clevo, Gigabyte, MSI, Razer, and Toshiba have all "committed" to using the new GeForce GTX 700M-series GPUs in their notebooks. There are more to come, as well.
Update 1:32 PM: Nvidia has confirmed that the GeForce GTX 780M is based on the GK104 chip, while the other members of the GTX 700M series are powered by the GK106.
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