How Amazon DocumentDB on AWS Graviton4 R8g instances delivers 63% better Sysbench benchmark results

This post demonstrates how in our testing upgrading to Graviton4-based R8g instances on Amazon DocumentDB (with MongoDB compatibility) version 5.0 and 8.0 delivers up to 63% better performance compared to Graviton2-based R6g instances on the Sysbench benchmark. This improvement comes at only a 5% cost increase. Graviton4-based R8g instances offer improved performance, scalability, and better price-performance for memory-intensive workloads. R8g instances provide up to 192 vCPUs — three times more vCPUs than Graviton2-based R6g instances, and up to 1.