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New EC2 Instances — z1d, R5, and R5d


AWS has launched new EC2 instances with faster processors and more memory.

z1d – instances running on 4.0 GHz for compute-intensive tasks and on an all-core Turbo Boost. Best for EDA (Electronic Design Automation), relational database workloads, and HPC workloads.

z1d instances have custom Intel Xeon Scalable Processors and are available in six sizes. They will have 48 vCPUs, 384 Gb of memory, and 1.8TB of local NVMe storage. They are currently available in the US East (N. Virginia), US West (Oregon), US West (N. California), EU (Ireland), Asia Pacific (Tokyo), and Asia Pacific (Singapore) Regions.

Instance Size vCPUs Memory Local Storage EBS-Optimized Bandwidth Network Bandwidth
z1d.large 2 16 GB 1×75 GB NVMe SSD Up to 2.333 Gbps Up to 10 Gbps
z1d.xlarge 4 32 GB 1×150 GB NVMe SSD Up to 2.333 Gbps Up to 10 Gbps
z1d.2xlarge 8 64 GB 1×300 GB NVMe SSD 2.333 Gbps Up to 10 Gbps
z1d.3xlarge 12 96 GB 1×450 GB NVMe SSD 3.5 Gbps Up to 10 Gbps
z1d.6xlarge 24 192 GB 1×900 GB NVMe SSD 7.0 Gbps 10 Gbps
z1d.12xlarge 48 384 GB 2×900 GB NVMe SSD 14 Gbps 25 Gbps


R5 – Memory-optimized EC2 instances running up to 3.1 Ghz powered by sustained all-core Turbo Boost. I has up to 50% more vCPUs and 60% more memory than R4 instances. Great for high-performance databases, distributed in-memory caches, in-memory analytics, and big data analytics.

R5 instances use custom Intel Xeon Platinum 8000series processors and are available in six sizes.

Instance Size vCPUs Memory EBS-Optimized Bandwidth Network Bandwidth
r5.large 2 16 Gb Up to 3.5 Gbps Up to 10 Gbps
r5.xlarge 4 32 Gb Up to 3.5 Gbps Up to 10 Gbps
r5.2xlarge 8 64 Gb Up to 3.5 Gbps Up to 10 Gbps
r5.4xlarge 16 128 Gb 3.5 Gbps Up to 10 Gbps
r5.12xlarge 48 384 Gb 7.0 Gbps 10 Gbps
r5.24xlarge 96 768 Gb 14.0 Gbps 25 Gbps


R5d – Memory-optimized EC2 instances with local NVMe storage of up to 3.6 TB. Available in the same sizes and specs as the regular R5, but with local storage ranging from 1 x 75 GB NVMe SSD (large) to 2 x 900 GB NVMe SSD (12xlarge).

Also on the horizon are R5 Bare Metal, R5d Bare Metal, and z1d Bare Metal instances.

Are you ready to make the leap into the AWS cloud? Would you like to see how cloud compute services could give you enormous business savings? Contact us today at PolarSeven.



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PolarSeven’s vision is to be a customer centric, Amazon Web Services consultancy, where cloud computing is seen as a key enabler to our customers needs and challenges. “We help our customers achieve amazing things.....”