r6i

Amazon Elastic Compute Cloud (Amazon EC2) R6i instances, powered by 3rd Generation Intel Xeon Scalable processors, deliver up to 15% better price performance compared to R5 instances. R6i instances feature an 8:1 ratio of memory to vCPU, and support up to 128 vCPUs per instance.

r6i.4xlarge

r5
r6g

Amazon EC2 Instance types, computed optimized, memory optimized, high memory, AMI, Burstable, CPU credits, on-demand, spot, Karpenter, t2, t3, t4g, r5, r6, c5 (c5a, c5ad), c6 (c6a, c6i), m5, m6i, m7i, c7i, c7g, r6g, r6i, G5, G6, x1, aws ec2 describe-instance-types, vCPU, VcpuLimitExceeded, im4gn