ecs.r9i.12xlarge by Alibaba Cloud

A dedicated x86_64 compute instance featuring 384 GB of memory and 48 physical cores for memory-intensive enterprise workloads.

Alibaba Cloud ecs.r9i.12xlarge is an x86_64 server instance built on the KVM hypervisor, featuring 48 dedicated physical cores powered by an Intel Xeon 6982P-C processor running at 3.2 GHz. With a 1.0 thread-per-core configuration, it provides 48 vCPUs paired with 384.0 GB of system memory, establishing an 8.0 GB per vCPU memory-to-core ratio. The instance does not include local storage or GPU hardware, relying instead on network-attached storage and offering a baseline network bandwidth of 25 Gbps. This memory-optimized profile makes the instance suitable for memory-intensive applications such as in-memory databases, caching layers, and enterprise data processing. The lack of local storage and accelerators represents a clear tradeoff, focusing resource allocation on dedicated compute and high-density memory.