Connect the display to a dual-link DVI port to access the higher resolutions available to the display. The following product combinations should give you the best resolution.
| Computer | 
Video card | 
Best port or adapter for optimum resolution | 

|---|---|---|
| Mac Pro (Late 2013) | 

 Dual AMD FirePro D300 | 
 Mini DisplayPort to Dual-Link DVI adapter | 

| Mac Pro (Mid 2012 and older) 
 Power Mac G5 (all models) 
 | 
 
 NVIDIA GeForce GT 120 | 
 DVI port or Mini DisplayPort to Dual-Link DVI adapter | 

| 
 | ATI Radeon X1900 XT 
 NVIDIA Quadro FX4500 
 ATI Radeon HD 2600 XT 
 NVIDIA GeForce 8800 GT 
 NVIDIA Quadro FX5600 | 
 Either of the two DVI ports | 

| 
 | ATI Radeon 9650 | 
DVI port 2 only | 

| 
 | NVIDIA GeForce 6600 LE 
 NVIDIA GeForce 6600 
 NVIDIA GeForce 7300 GT | 
 DVI port 1 only | 

| 
 | ATI Radeon X850 XT 
 NVIDIA GeForce 6800 Ultra DDL 
 NVIDIA GeForce 6800 GT DDL | 
 DVI port | 

| MacBook Pro (13-inch, Mid 2009) and later 
 MacBook Pro (15-inch, Late 2008) and later 
 MacBook Pro (17-inch, Early 2009) and later 
 MacBook Air (Late 2008) and later 
 MacBook (13-inch, Aluminum, Late 2008) 
 MacBook (13-inch, Late 2009) and later | 
 Equipped with a Mini DisplayPort or Thunderbolt port | 
Mini DisplayPort to Dual-Link DVI adapter | 

| iMac (Early 2009) and later 
 Mac mini (Early 2009) and later | 
 Equipped with a Mini DisplayPort or Thunderbolt port | 
Mini DisplayPort to Dual-Link DVI adapter | 

Notes:
- 

- Make sure that you are using a compatible video card or built-in port that provides dual-link support. Compatible video cards must include a dual-link DVI port. 

- When you use a Mini DisplayPort to DVI adapter you must use a dual-link compatible adapter. 

Learn more
Older products not listed in this article may not provide a dual-link DVI connection and may not be able to support the Apple Cinema Display (30-inch DVI) at its native resolution (2560 x 1600). Such products will be limited to the maximum resolution available with a single-link DVI connection for this product, which is 1280 x 800 (half of the 2560 x 1600 native resolution). Displays that are not manufactured by Apple that require a dual-link DVI connection will similarly be limited to half the maximum resolution when used with a single-link DVI connection.
For more information on the Apple Mini DisplayPort to Dual-Link DVI adapter, see About the Apple Mini DisplayPort to Dual-Link DVI adapter.