ecs.c9a.4xlarge by Alibaba Cloud

A dedicated AMD EPYC compute-optimized instance featuring sixteen physical cores and a balanced network baseline for intensive processing workloads.

Alibaba Cloud ecs.c9a.4xlarge is an x86_64 compute-optimized instance powered by the KVM hypervisor. It features 16 dedicated AMD EPYC 9T25 physical cores operating at 2.7 GHz, with a 1.0 thread-per-core ratio that ensures dedicated CPU allocation. The instance is configured with 32.0 GB of system memory, providing a 2.0 GB per core ratio, and delivers a baseline network bandwidth of 12 Gbps. It does not include local storage or complimentary public IPv4 addresses. This hardware configuration offers a resource-dense profile for compute-intensive workloads, making it highly suitable for batch processing, web serving, and distributed analytics. The absence of local storage and the 1:2 CPU-to-RAM ratio represent a tradeoff, prioritizing raw CPU execution over memory capacity and local disk performance.