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Shipping times for Apple's 15" MacBook Pro with discrete GPU slip to 2-3 weeks, point to refresh

Days after apparent supply constraints slowed ship times for certain Apple's 15-inch MacBook Pro models to 1-2 weeks, the Online Apple Store on Friday extended those estimates to 2-3 weeks.

On Wednesday, AppleInsider reported that 15-inch MacBook Pro with Retina display inventory has been fluctuating over the past month. With discrete GPU models now shipping in 2-3 weeks, the dwindling supply could point to an imminent refresh with expected to bring Broadwell processors and Force Touch trackpad inclusion.

When Apple announced refreshed MacBook Pro and MacBook Air models last month, the 15-inch MacBook Pro was noticeably absent likely due to delayed production of Intel's high-performance Broadwell chips.

As for current availability, sources said authorized resellers are seeing shifts in supply, with Apple drawing down channel inventory in March only to send out fresh shipments in April. It seems, however, that supply for 15-inch MacBook Pros with discrete Nvidia GPUs is steadily decreasing at both resellers and Apple's own stores, suggesting a new model could be announced soon. A good time to debut a refresh is coming up at Apple's Worldwide Developers Conference in June.

Apple's last 15-inch MacBook Pro with Retina display update brought Haswell CPUs and more standard memory in July 2014.