We just sat down for NVIDIA's Pre-CES press event. Things are running a bit late now, but we expect the event to start in the next 15 minutes. Keep yourself here for the live blog!

There have been many interesting developments in the small form factor market segment since our last SFF buyer's guide. Specifically, current-generation Intel Ivy Bridge CPUs and AMD Trinity APUs use less power than their respective predecessors, and GPUs from both AMD and NVIDIA are similarly less power hungry than last year's architectures. Using less electricity translates to emitting less heat, meaning small form factor systems are more viable than ever. Further, there are many new mini-ITX cases available to house the latest products from Intel, NVIDIA, and AMD. In this guide we outline budget-friendly general use tiny desktops, a small file server, and svelte gaming systems.

Continuing our SC12 related coverage today, while AMD was the first GPU announcement of the day they are not the only one. NVIDIA is also using the venue to launch their major GPU compute product for the year: Tesla K20.

Upon completion of K20 a bit earlier this year, NVIDIA dedicated most of the initial K20 allocation to Oak Ridge National Laboratory’s Titan supercomputer, completing delivery on a contract years in the making. With Titan complete NVIDIA can now focus their attention and their GPU allocations towards making the Tesla K20 family available to the public at large. With SC12 and the announcement of the new Top500 list as their backdrop, today NVIDIA will be officially launching the Tesla K20 family of compute GPUs.

Earlier this month I drove out to Oak Ridge, Tennessee to pay a visit to the Oak Ridge National Laboratory (ORNL). I'd never been to a national lab before, but my ORNL visit was for a very specific purpose: to witness the final installation of the Titan supercomputer.

ORNL is a US Department of Energy laboratory that's managed by UT-Battelle. Oak Ridge has a core competency in computational science, making it not only unique among all DoE labs but also making it perfect for a big supercomputer.

Titan is the latest supercomputer to be deployed at Oak Ridge, although it's technically a significant upgrade rather than a brand new installation. Jaguar, the supercomputer being upgraded, featured 18,688 compute nodes - each with a 12-core AMD Opteron CPU. Titan takes the Jaguar base, maintaining the same number of compute nodes, but moves to 16-core Opteron CPUs paired with an NVIDIA Kepler K20 GPU per node. The result is 18,688 CPUs and 18,688 GPUs, all networked together to make a supercomputer that should be capable of landing at or near the top of the TOP500 list.

Over the course of a day in Oak Ridge I got a look at everything from how Titan was built to the types of applications that are run on the supercomputer. Having seen a lot of impressive technology demonstrations over the years, I have to say that my experience at Oak Ridge with Titan is probably one of the best. Normally I cover compute as it applies to making things look cooler or faster on consumer devices. I may even dabble in talking about how better computers enable more efficient datacenters (though that's more Johan's beat). But it's very rare that I get to look at the application of computing to better understanding life, the world and universe around us. It's meaningful, impactful compute.

Read on for our inside look at the Titan supercomputer.