Generally available: N4 VMs are generally available on the Intel Emerald Rapids CPU with 640 GB DDR5 memory

## Feature **Generally available:** [N4 VMs](https://cloud.google.com/compute/docs/general-purpose-machines) are generally available on the [Intel Emerald Rapids CPU](https://cloud.google.com/compute/docs/cpu-platforms) with 640 GB DDR5 memory. The N4 machine series offers predefined and custom machine types with extended memory and Hyperdisk Balanced storage. N4 VMs are available in limited [regions and zones](https://cloud.google.com/compute/docs/regions-zones#available). See [VM pricing](https://cloud.google.com/compute/vm-instance-pricing#general-purpose%5Fmachine%5Ftype%5Ffamily) for cost details. ## Feature **Generally available**: You can plan ahead for VM maintenance on [M1, M2, and M3](https://cloud.google.com/compute/docs/memory-optimized-machines) machine types by [viewing their maintenance schedule notifications](https://cloud.google.com/compute/docs/instances/monitor-plan-host-maintenance-event). For specific machine types within these families, you can also [trigger VM maintenance](https://cloud.google.com/compute/docs/instances/trigger-host-maintenance-event) ahead of schedule.