This is the list of Apple approved graphics, except for the cards for laptops. Replace your card with one of these. Get the best you can afford.
- NVIDIA
- GeForce GT 120
- GeForce GT 130
- GeForce GTX 285
- GeForce 8800 GT
- GeForce 8800 GS
- Quadro FX 4800
- Quadro FX5600
- ATI
- Radeon HD 4670
- Radeon HD 4850
- Radeon HD 4870
- Radeon HD 5670
- Radeon HD 5750
- Radeon HD 5770
- Radeon HD 5870