5:4

2560×2048 1920×1536 1600×1280 1280×1024

4:3

2560×1920 1920×1440 2048×1536 1600×1200 1280×960

widescreen

2880×1800 2560×1600 1920×1200 1920×1080 1680×1050 1440×900 1280×800 1280×720

dual monitor

5760×1800 5120×1600 3840×1200 3840×1080 3200×1200

triple monitor

8640×1800 7680×1600 5760×1200 5760×1080 4800×1200

quad monitor

11520×1800 10240×1600 7680×1200 7680×1080 6400×1200

5:4 vertical

2048×2560 1536×1920 1280×1600 1024×1280

4:3 vertical

1920×2560 1536×2048 1440×1920 1200×1600 960×1280

widescreen vertical

1800×2880 1600×2560 1200×1920 1080×1920 1050×1680 900×1440 800×1280 720×1280

Retina Display

2880×1800 2048×1536 960×640 640×960

Other sizes or configurations, please ask!