MacBook Pro (Retina, 15-inch, Mid 2015) - Technical Specifications - has 2 TB ports, 1 HDMI. W10 can support two monitors.
- Intel Iris Pro Graphics
- 2.2GHz - 256GB
Intel Iris Pro Graphics
- 2.5GHz - 512GB
Intel Iris Pro Graphics
AMD Radeon R9 M370X with 2GB of GDDR5 memory and automatic graphics switching
- Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels on up to two external displays, both at millions of colors.
- Thunderbolt digital video output
- Native Mini DisplayPort output
- DVI, VGA, dual-link DVI, and HDMI output supported using Mini DisplayPort adapters (sold separately)
- Support for up to 5120-by-2880 resolution at 60Hz on a single external display (model with AMD Radeon R9 M370X only)
- HDMI video output
- Support for 1080p resolution at up to 60Hz
- Support for 3840-by-2160 resolution at 30Hz
- Support for 4096-by-2160 resolution at 24Hz
MacBook Pro (Retina, 13-inch, Early 2015) - Technical Specifications
- Intel Iris Graphics 6100
- Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels on up to two external displays, both at millions of colors.
- Thunderbolt digital video output
Native Mini DisplayPort output
DVI, VGA, dual-link DVI, and HDMI output supported using Mini DisplayPort adapters (sold separately)
- HDMI video output
- Support for 1080p resolution at up to 60Hz
- Support for 3840-by-2160 resolution at 30Hz
- Support for 4096-by-2160 resolution at 24Hz
Please also see Thunderbolt ports and displays: Frequently asked questions (FAQ) - Apple Support and Use Windows 10 on your Mac with Boot Camp - Apple Support .