Amazon Web Services has announced big price cuts across its cloud computing portfolio at an event in San Francisco – one day after rival Google did the same.

Andy Jassy, AWS senior vice president, explained to delegates in his keynote speech that lowering prices was “not new” for AWS, laying out the company’s latest price drop.

The facts: Amazon’s S3 storage cloud gets a pricing tier decrease from 36% to 65%. M3 gets an average 38% decrease, while C3 gets 30% – these were Linux prices, although Jassy promised there would be “comparable” figures for Windows and other operating systems.

Amazon’s relational database services will get an average reduction of 28%, while Elasticache drops by 34% and Elastic MapReduce goes down by anywhere between 27% and 61%.

“Lowering prices is not new for us – it’s something we do on a regular basis,” said Jassy. “This is something we …