12 votesDavid Berg [msft] commented
Please check out the new Ev3 series and other high memory VM sizes: https://docs.microsoft.com/en-us/azure/virtual-machines/windows/sizes-memory. I believe they provide closer to the memory ratio you're looking for. If you need more, then check out our constrained vCPU (even higher memory to core ratios): https://docs.microsoft.com/en-us/azure/virtual-machines/windows/constrained-vcpu.
For low end performance needs, the B series is usually a better deal than A series. It has up to 4GB/vCPU and very low cost with support for peak application performance (for apps that have variable performance needs).
2 votesDavid Berg [msft] commented
Already available for NC v2 and v3 (and others). They support Premium disks (see https://docs.microsoft.com/en-us/azure/virtual-machines/windows/sizes-gpu#ncv2-series).