Way back in February 2011, Qualcomm announced the Snapdragon APQ8064, a quad core application processor clocked at up to 2.5 GHz, that was (and still is) supposed to be available in products end of 2012, beginning of 2013. They now have samples, and showcased the processor in an Android tablet reference design at UpLink 2012.
The APQ8064 is part of SnapDragon S4 Pro family and features 4 Krait cores running at up to 1.5 GHz when all four cores are running, or up to 1.7 GHz when only one core is active, according to Anandtech. So it appears they did not follow up on the 2.5 GHz promise. APQ8064 is the first SoC featuring Adreno 320 GPU, and will be followed by MSM8960 later on.
The demo below shows the 3D performance of the Qualcomm processor and GPU, and Raj Talluri, Senior Vice President, Product Management at Qualcomm, claims the APQ8064 is able to deliver 3D rendering equivalent to what you get in high-end console quality games.
At the end of the presentation, he said the tablet development platform (MDP APQ8064?) would be available to developers together with the software development kit on Qualcomm developer website.