NVIDIA demos next-gen Project Logan: A mobile SoC with NVIDIA’s latest GPU architecture


logan socMost of us are already familiar with Nvidia’s silicon offerings found inside a large number of smartphones and tablets, including the Nexus 7. NVIDIA’s current version is the quad-core Tegra 4, which the company is using inside the upcoming Nvidia Shield & other devices from various manufacturers. Yet Tegra 4 didn’t really take off, primarily due to intense competition with Qualcomm’s more efficient SoCs.

But rest assured, something big is coming! Nvidia’s latest promotional efforts take the spotlight off of a fully integrated solution to focus on NVIDIA’s bread and butter: the Kepler GPU. Indeed, Nvidia will be bringing the fully fledged Kepler architecture to the mobile world. It obviously no GTX Titan by any means since the implementation is based on a shrunken down & simplified Kepler design but it nevertheless smash records as far as mobile GPU computing is concerned.

Last year Nvidia’s CEO Jen-Hsun Huang said his company would bring its powerful Kepler graphics processor to “superphones.” Yesterday in a private event at Siggraph 2013 in  in Anaheim, California, NVIDIA demonstrated functional Logan silicon for the very first time. The Kepler GPU fits into a tablet form factorand has a power envelope of just two watts!


Nvidia Kepler is also the first architecture designed to scale from supercomputers all the way down to mobile devices!

So what’s inside? Kepler Mobile features a single Kepler SMX (Next Generation Streaming Multiprocessors). That basically means we’ll be looking at 192 CUDA cores, 16 texture units, and, presumably 64 KB of L1. NVIDIA isn’t talking about CPU cores, but it’s safe to assume that Logan will be another 4+1 arrangement of cores or perhaps built around the ARM big.LITTLE design- though likely still based on ARM’s Cortex A15 IP.

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