The first iPhone Duo benchmark is out, and it looks a lot like an iPhone 18 Pro. A Geekbench 7 listing for the foldable (model iPhone19,4, running iOS 27.1) shows a single-core score of 3986 and a multi-core score of 11067, MacRumors reports.
That tracks, since both phones use Apple's 2nm A20 Pro with a 6-core CPU at a 4.93GHz base frequency. The listing also shows 11.30GB of memory, which points to 12GB of RAM. MacRumors notes this one run lands a bit under the best iPhone 18 Pro results, and GPU performance wasn't tested.
One benchmark won't say much about how the Duo handles heat with two screens to drive, so real-world testing will matter more. Pre-orders open Friday, October 16, and the phone launches October 23.
— via MacRumors