You can now launch R3 instances, the latest generation of Amazon EC2 memory optimized instances in the South America (Sao Paulo) AWS region. R3 offers the best price point per GiB of RAM and high memory performance. R3 instances are recommended for In-memory analytics like SAP HANA, high performance databases including relational databases and NoSQL databases such as MongoDB, and MemcacheD/Redis applications. R3 instances support Hardware Virtualization (HVM) Amazon Machine Images (AMIs) only.
R3 instances, powered by Intel Xeon Ivy Bridge processors, offer up to 32 vCPUs, 244 GiB of memory, and can deliver up to 150,000 4 KB random reads per second. R3 instances support Enhanced Networking for higher packet per second (PPS) performance, lower network jitter, and lower network latencies. Please refer to R3 technical documentation for additional reference. R3 instances are available in two instance sizes in South America (Sao Paulo) AWS region with following specification: