While the 2013 Generation Tegra did not show as much design wins as many expected (and those were mostly for the Tegra 4i (Tegra 3+LTE "Project Grey"), the company made a stunning 2014 tech pitch at the Siggraph conference.
Three weeks ago, engineering department at Nvidia got a hold of a very first Project Logan silicon. Some might say the timing was just about right, with the new installment of Wolverine arriving in movie theaters worldwide.
Following the initial verifications, it took only 10 days for the NVDemo team to get the PC demos running on the initial silicon. The operating system booted immediately, and then it took some tweaking to get the PC demos, running in a DirectX 11 environment – running on a mobile part. The OS in question was not disclosed, and while the lower part of the screenshots implicates Google’s Android OS, the boards in question carried the marking WOA – Windows on ARM e.g. much criticized Windows RT. Truth to be told, the demos run so smooth we could argue WindowsRT just might make a big comeback in terms of offering seamless experience, something Android tablets lack to this very date.
Nvidia Project Logan GPU: Kepler e.g. GeForce 600 Series comes to sub-10W devices
The end result is that at this year’s Siggraph conference, Nvidia is showing the Kepler GPU running inside Project Logan, which is the codename for "Tegra 5" e.g. Tegra SoC for the 2014. The GPU itself is consisted out of a single SMX cluster, e.g. 192 CUDA cores, running a full hardware stack from PC-based Kepler GPU (GeForce 600 Series), albeit in a radically shrunk power envelope. As you can see in the picture above, the Kepler GPU supports what Nvidia offers today with their GeForce GTX Titan GPU, albeit in a much reduced power envelope.
Nvidia is showing a Tessellation DirectX 11 demo, which ran on PC systems only – running on a mobile part.
While the company representatives could not disclose the manufacturing process of the Project Logan, we suspect this is one of first 20nm chips coming out of TSMC 20nm LP line. We’ll be looking into greater detail over Tegra 5, e.g. Project Logan but in meanwhile, you can see the 2012 PC demo which demonstrates Tessellation running inside a two-watt TDP (Thermal Design Power) but at the same time, the company is hiding the total power consumption of the upcoming Logan SoC, which is widely expected to feature 64-bit ARM cores (Cortex-A5x) and be the first part to go not just into tablets but into ARM microservers as well, such as HP’s Project Moonshot.
For now, we leave you with a link to two videos which show former PC-only, DirectX 11 demos running on a mobile part.