ecs.r9a.4xlarge by Alibaba Cloud

A memory-optimized x86_64 instance featuring dedicated AMD EPYC processors, 128 GB of RAM, and 12 Gbps baseline network bandwidth.

Alibaba Cloud ecs.r9a.4xlarge is a memory-optimized server instance built on the x86_64 architecture and managed via the KVM hypervisor. It features 16 dedicated vCPUs powered by an AMD EPYC 9T25 processor running at 2.7 GHz, with a 1.0 thread-per-core configuration that provides dedicated physical execution units. The instance is equipped with 128.0 GB of RAM, establishing an 8.0 GB memory-per-core ratio. It does not include local storage or integrated GPUs, relying instead on network-attached storage solutions. Network connectivity is supported by a baseline bandwidth of 12 Gbps. This hardware profile is designed for memory-intensive workloads, such as in-memory databases, caching systems, and data processing applications that require a high memory-to-CPU ratio without the need for local NVMe drives or hardware acceleration.