Instance Type

Instance Type Naming Convention

Instance types are named based on their family, generation, processor family, additional capabilities, and size.

• The first position of the instance type name indicates the instance family, for example p.

• The second position indicates the instance generation, for example 1.

• The third position indicates the processor family, for example a.

• The remaining letters before the period indicate additional capabilities, such as instance store volumes.

• After the period (.) is the instance size, such as small or 4xlarge.

Instance families

• C – Compute optimized

• D – Dense storage

• F – FPGA

• G – Graphics intensive

• Hpc – High performance computing

• I – Storage optimized

• M – General purpose

• Mac – macOS

• P – GPU accelerated

• R – Memory optimized

• T – Burstable performance

• U – High memory

• VT – Video transcoding

• X – Memory intensive

Processor families

• a – AMD processors

• i – Intel processors

Additional capabilities

• d – instance store volumes

• e – Extra storage or memory

• z – High performance

• flex – Flex instance