Provisioned IOPS vs GP3

Provisioned IOPS (io1/io2):

• Up to 64,000 IOPS (256,000 for io2 Block Express)

• Up to 1,000 MB/s throughput (4,000 MB/s for Block Express)

• Higher durability with io2 (99.999%)

• Pay for provisioned IOPS regardless of use

• Best for critical, high-performance databases

• More expensive

• Predictable performance

GP3:

• Up to 16,000 IOPS

• Up to 1,000 MB/s throughput

• 3,000 IOPS baseline included

• Pay only for what you provision above baseline

• Good for most production workloads

• More cost-effective

• No bursting needed