EC2 r5b instance prices

The r5b series is a memory optimized EC2 line running on Intel Xeon Platinum 8259 (Cascade Lake). It has 8 sizes, from the r5b.large with 2 vCPUs and 16 GiB to the r5b.24xlarge with 96 vCPUs and 768 GiB, and it is memory-heavy with a median of 8.0 GiB per vCPU.

In US East the Linux on-demand price runs from $0.1490/hour to $7.15/hour, or $109 to $5,221 a month. The median price per vCPU-hour across the series is $0.0745.

Every size costs the same $0.0745 per vCPU-hour, so price scales linearly: doubling the size doubles the bill, and two smaller instances cost exactly as much as one larger one. That makes it easy to start small and resize later without changing your unit cost. All sizes are sold in the same 11 of the 12 regions we track. Each size below links to a page with prices in every tracked region, reserved-instance savings, Windows pricing and cheaper alternatives of the same shape.