g2.2xlarge is an AWS EC2 instance with 8 vCPUs, 15 GiB memory, 1 GPU (Intel Xeon E5-2670 (Sandy Bridge)). In US East (N. Virginia) it costs $0.65 per hour on demand ($474.50 per month) for Linux. It is sold in 9 regions.
Prices by region
USD per hour, Linux. Reserved prices are no upfront, standard. Cheapest on-demand first.