EVGA GTX 285 for Mac

Performance

NVIDIA GTX 285 Mac
648 MHz GPU
240 Processing Cores
400 MHz RAMDAC
Memory
1024 MB, 512 bit DDR3
2484 MHz (effective)
159 GB/s Memory Bandwidth
Interface
PCI-E 2.0 x16
DVI-I, DVI-I
Resolution & Refresh
240Hz Max Refresh Rate
2048x1536 Max Analog
2560x1600 Max Digital

Requirements
Minimum of a 550 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 40 Amps.)
Two available 6-pin PCI-E power dongles