Graviton-4-powered, memory-optimized X8g instances are now available in ten virtual sizes and two bare metal sizes, with up to 3 TiB of DDR5 memory and up to 192 vCPUs. The X8g instances are our most energy efficient to date, with the best price performance and scale-up capability of any comparable EC2 Graviton instance to date. With a 16 to 1 ratio of memory to vCPU, these instances are designed for Electronic Design Automation, in-memory databases & caches, relational databases, real-time analytics, and memory-constrained microservices. The instances fully encrypt all high-speed physical hardware interfaces and also include additional AWS Nitro System and Graviton4 security features.
Over 50K AWS customers already make use of the existing roster of over 150 Graviton-powered instances. They run a wide variety of applications including Valkey, Redis, Apache Spark, Apache Hadoop, PostgreSQL, MariaDB, MySQL, and SAP HANA Cloud. Because they are available in twelve sizes, the new X8g instances are an even better host for these applications by allowing you to choose between scaling up (using a bigger instance) and scaling out (using more instances), while also providing additional flexibility for existing memory-bound workloads that are currently running on distinct instances.
The Instances When compared to the previous generation (X2gd) instances, the X8g instances offer 3x more memory, 3x more vCPUs, more than twice as much EBS bandwidth (40 Gbps vs 19 Gbps), and twice as much network bandwidth (50 Gbps vs 25 Gbps).