CockroachDB 2.1 demonstrates significant enhancements in scalability and cost-efficiency compared to Amazon Aurora, achieving 50 times the scalability at less than 2% of the price per transaction per minute (tpmC). Unlike Aurora, which compromises on isolation levels for performance, CockroachDB maintains serializable isolation, safeguarding data from fraud and loss while supporting large-scale operations. Through the TPC-C benchmark, CockroachDB 2.1 achieved a remarkable 631K tpmC and improved its efficiency by reducing the number of nodes required for operations, resulting in substantial cost savings. Additionally, the KV benchmark showed linear throughput increases with additional nodes, while the 3-node cluster improvements translate to more throughput with fewer resources, benefiting deployments that don't require global scale. CockroachDB's enhancements make it a cost-effective and resilient database solution for various customer needs.