db.r6i.2xlarge is an Amazon Neptune size with 8 vCPUs, 64 GiB memory (Intel Xeon Family). In US East (N. Virginia) it costs $1.392 per hour on demand ($1,016.16 per month) for Standard storage. It is sold in 29 regions.
Prices by region
USD per hour, Standard storage. Reserved prices are no upfront, standard. Cheapest on-demand first.