inf2.xlarge is an AWS EC2 instance with 4 vCPUs, 16 GiB memory, 1 GPU (AMD EPYC 7R13 Processor). In US East (N. Virginia) it costs $0.7582 per hour on demand ($553.49 per month) for Linux; a 1-year reserved instance with no upfront costs $0.4777 per hour, 37% less. Spot capacity is about $0.1075 per hour. It is sold in 14 regions.
Prices by region
USD per hour, Linux. Reserved prices are no upfront, standard. Cheapest on-demand first.