r8i-flex.4xlarge

The r8i-flex.4xlarge is a aws ec2 instance type featuring multiple vCPUs and optimized memory, commonly used for ec2 workloads.

Last updated at Thu Apr 30 2026
Instance Info
Compute Value
vCPUs 16
Memory 128 GiB
Physical Processor Intel Xeon Scalable (Granite Rapids)
Clock Speed 3.9 GHz
CPU Architecture 64-bit
GPU Memory NA
Network Value
Network Performance Up to 15000 Megabit
Enhanced Networking Yes
Storage Value
Storage EBS only
EBS Throughput Up to 10000 Mbps
Amazon Value
Current Generation Yes
Instance Type r8i-flex.4xlarge
Family Memory optimized
Family Instances
Instance vCPUs Memory
r8i-flex.large 2 16
r8i-flex.xlarge 4 32
r8i-flex.2xlarge 8 64
r8i-flex.4xlarge 16 128
r8i-flex.8xlarge 32 256
r8i-flex.12xlarge 48 384
r8i-flex.16xlarge 64 512
Related Instances
Instance vCPUs Memory
g6e.4xlarge 16 128 GiB
hpc7g.4xlarge 16 128 GiB
d3.4xlarge 16 128 GiB
g7e.4xlarge 16 128 GiB
gr6f.4xlarge 16 128 GiB