MacBook Pro 2015 (Retina) - 15" vs MacBook Pro 2021 - 16"

The specs for the MacBook Pro 15” (2015) are as follows: 15.4” Retina display, an Intel Core i7 or Core i9 processor, Intel Iris Pro graphics, 16GB of RAM, up to 1TB of storage, and 720p FaceTime HD camera, as well as a MagSafe 2 power port, two Thunderbolt 2 ports, two USB 3 ports, an HDMI port, an SDXC memory card slot, WiFi 802.11ac, Bluetooth 4.2, stereo speakers, dual microphones, and a 3.5mm headphone jack. The specs for the MacBook Pro 16” (2021) specs include a 16.2” Liquid Retina XDR display with ProMotion technology, an Apple M1 Pro or M1 Max chip, up to 64GB of RAM, up to 8TB of SSD storage, a 1080p FaceTime HD camera, and Touch ID. The 2021 model also features three Thunderbolt / USB 4 ports, an SDXC memory card slot, an HDMI port, a MagSafe 3 charging port, WiFi 802.11ax, Bluetooth 5.0, a high-fidelity six-speaker sound system with force canceling woofers, wide stereo sound, support for Spatial Audio, a studio-quality three-mic array, and a 3.5mm headphone jack with advanced support for high-impedance headphones.