Macs are traditionally considered to be pricier than their Windows-powered counterparts, but according to Apple, for every Windows PC that IBM replaces with a Mac, the company is saving money.

During its quarterly earnings call on Tuesday, Apple CFO Luca Maestri was keen to point out how beneficial swapping out PCs for Macs can be.

"There are currently over 30,000 Macs deployed within the company with 1,900 more being added each week. IBM tells us that each Mac is saving $270 compared to a traditional PC, thanks to the much reduced support cost and better residual value."

Put that another way, not only are there savings to be made from users making fewer support calls when using Macs, Macs also retain their value better over their lifespan.

What the actual breakdown of the savings are, Maestri did not make clear, but earlier this month at the JAMF Nation User Conference (JNUC), IBM's Fletcher Previn, VP of Workplace-as-a-Service, said that only 5 percent of its Mac users called the support desk, compared to 40 percent of Windows users.

Fewer support calls means lower support costs.

He also said that "a Mac still has value three or four years down the road," a clear reference to residual value.

The last quarter saw Apple's best Mac quarter ever, shifting 5.7 million Macs, an increase of 3 percent year-on-year.

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