Amazon is the only one of the three companies that breaks out its cloud division in terms of sales. The company said on Thursday that AWS revenue jumped 49 percent to $5.44 billionin the first quarter.

Microsoft said Azure revenue jumped 93 percent. KeyBanc analysts estimated Azure had $1.76 billion in revenue, while Raymond James analysts predicted the number was $2.05 billion.

This is a cloud hosting comparison. In the article they are comparing apples to oranges...