We'll discuss the potential improvements in detail later, but suffice it to say, these new chips will be a lot faster. The M1 Max steps things up again with 32-cores of graphics processing, up to 64GB of memory and twice the memory bandwidth. The M1 Pro boasts a 10-core design, an integrated 16-core GPU and up to 32GB of unified memory (that's Apple-talk for RAM). Both chips are beefed up considerably from the original M1 processor. The new 14-inch MacBook Pro is available with your choices of two new Apple Silicon processors, the M1 Pro and the M1 Max. The M1 was a revelation when it first came out, and we praised it in our review, saying 'Thanks to the M1 chip, the Apple Silicon inside this 3-pound beast runs circles around most Windows laptops when it comes to sheer performance.' The 13-inch 2020 model was the first to be outfitted with Apple's M1 processor, the first Apple Silicon CPU offered in a Mac laptop. The biggest differences between the old and new MacBook Pro are under the hood. Thunderbolt 4 (x3), HDMI, MagSafe 3, headphone jack, SD memory card slot M1 Pro (8-core CPU, 14-core GPU or 10-core CPU, 16-core GPU), with optional M1 Max with up to 10-core CPU and 32-core GPUġ6:32 of web browsing (M1, tested) | Up to 20 hours (Apple M1, claimed) | 10:21 (Intel, tested)

14.2-inch Liquid Retina XDR display (3024x1964 pixels, 254ppi)

Macbook pro 2015 dimensions