This unit has an Intel® Core™ m3-6Y30 Processor, this is the one providing the graphics for the unit.
This processor has the Intel® HD Graphics 515.
The GPU is integrated inside the CPU (processor) of the unit.
http://ark.intel.com/products/91980/Intel-Compute-Stick-STK2m3W64CC Intel® Compute Stick STK2m3W64CC Specifications
http://ark.intel.com/products/88198/Intel-Core-m3-6Y30-Processor-4M-Cache-up-to-2_20-GHz Intel® Core™ m3-6Y30 Processor (4M Cache, up to 2.20 GHz) Specifications
If you require any further information or support, feel free to contact us back.
This product is to be released to the market for end users to purchase it, but there is not an exact date so far.
Here you can find some other information about the product: http://www.intel.com/content/www/us/en/compute-stick/intel-compute-stick.html Introducing the Intel® Compute Stick