The m5a.large is a general-purpose AWS EC2 instance: 2 vCPU and 8 GiB of memory, 4.00 GiB per vCPU. In the name, "m" is the general-purpose line, "5" is the generation, "a" marks AMD processors and "large" is the size within the m5a family. It runs on AMD EPYC 7571 at 2.5 GHz, and AWS introduced it in November 2018. AWS has since shipped m6a, m7a, m8a and m9g; m6a.large is the direct replacement at this size, scoring 40,862 CoreMark/s against this instance's 26,516 — roughly 54% more throughput for the same vCPU count. The nearest Spot node is gp.vs1.large at 4 vCPU and 16 GiB — 2 more vCPU and 8 GiB more memory, about 87% below the US East (N. Virginia) on-demand rate.