RDS is like 4~13x than EC2 on AWS, 2.3x than EC2 on aliyun.
<a href="https://pigsty.io/blog/cloud/rds/" rel="nofollow">https://pigsty.io/blog/cloud/rds/</a><p>But The real cost lies on EBS, which is around 60x ~ 200x than local NVMe SSD.
<a href="https://pigsty.io/blog/cloud/ebs/" rel="nofollow">https://pigsty.io/blog/cloud/ebs/</a><p><a href="https://pigsty.io/blog/cloud/bonus/" rel="nofollow">https://pigsty.io/blog/cloud/bonus/</a>
RDS can be quite expensive. I wrote a bit on this here <a href="https://medium.com/p/6c4fff5a8644" rel="nofollow">https://medium.com/p/6c4fff5a8644</a>