AWS Blog

New – Next Generation (R4) Memory-Optimized EC2 Instances

In-memory processing is a huge deal. With workloads growing larger by the day and CPUs gaining power with every successive generation, the ability to fit entire datasets into memory is becoming a prerequisite for high-quality Business Intelligence, analytics, data mining, and other real-time workloads that are sensitive to latency. Distributed caching and batch processing workloads can also benefit from fast access to lots of memory.

Today we are launching the next generation of memory-optimized EC2 instances. These instances improve upon the popular R3 instances with a larger L3 cache and faster memory. On the network side, they support up to 20 Gbps of ENA-powered network bandwidth when used within a Placement Group, along with 12 Gbps of dedicated throughput to EBS.

The R4 instances include the following features:

  • Dual socket Intel Xeon E5 Broadwell Processors (2.3 GHz)
  • DDR4 memory
  • Hardware Virtualzation (HVM) only

Here’s the lineup:

Model vCPUs Memory (GiB) Networking Performance
r4.large 2 15.25 Up to 10 Gigabit
r4.xlarge 4 30.5 Up to 10 Gigabit
r4.2xlarge 8 61 Up to 10 Gigabit
r4.4xlarge 16 122 Up to 10 Gigabit
r4.8xlarge 32 244 10 Gigabit
r4.16xlarge 64 488 20 Gigabit

The R4 instances are available in On-Demand and Reserved Instance form in the US East (Northern Virginia), US East (Ohio), US West (Oregon), US West (Northern California), EU (Ireland), EU (Frankfurt), Asia Pacific (Sydney), China (Beijing), and AWS GovCloud (US) Regions. Visit the EC2 Pricing page for more information.

Jeff;

Update: There will be a webinar on January 19th where you can learn more! Register here.