Microsoft (MSFT) hasn’t said anything more specific about an official launch date for Windows 10 beyond sometime this summer. But AMD (AMD) president and chief executive Lisa Su seems a bit more clued into the operating system's planned debut date.

The Verge reported that Su, in remarks on an AMD earnings call last week about the chip maker’s inventory, said, "With the Windows 10 launch at the end of July, we are watching sort of the impact of that on the back-to-school season, and expect that it might have a bit of a delay to the normal back-to-school season inventory build-up."

Either intentionally or inadvertently, Su apparently let slip the closest thing we’ve yet seen to a launch date for Windows 10.

It’s not too far afield to figure that Microsoft keeps AMD among those firmly in the loop on product information and launch plans so the chip maker can align its future steps to Redmond’s. Still, it’s unusual for a top executive from another company to be more exact on Microsoft product release information months ahead anything definitive surfacing from the software maker itself.

Last week, AMD delivered Q1 2015 results under forecast with revenue falling 26 percent from the same time last year to $1.03 billion along with a net loss of $180 million, or $0.23 a share. On a sequential basis, AMD pared its losses from Q4 2014 when it recorded a net loss of $364 million, or $0.47 a share.

The company blamed weaker than expected desktop and notebook sales and a seasonal slide in the semi-custom SoC business, although it expressed optimism about long-range growth. As part of its overall strategy to simplify operations, AMD said it is exiting the SeaMicro dense server systems business immediately.

"Under the backdrop of a challenging PC environment, we are focused on improving our near-term financial results and delivering a stronger second half of the year based on completing our work to rebalance channel inventories and shipping strong new products," Su said.

AMD said it expects Q2 2015 revenue to fall another 3 percent sequentially.