cache.r6gd.xlarge is an AWS ElastiCache size with 4 vCPUs, 26.32 GiB memory. In US East (N. Virginia) it costs $0.781 per hour on demand ($570.13 per month) for Redis; a 1-year reserved instance with no upfront costs $0.531 per hour, 32% less. It is sold in 14 regions.
Prices by region
USD per hour, Redis. Reserved prices are no upfront, standard. Cheapest on-demand first.