Whatever Apple chooses next for an optional GPU, we hope it's an ATI Radeon card. If you just have dual Radeon HD 3870s or 4870s with a CrossFire jumper, it only provides a speed boost under Windows. One big advantage of the Radeon HD 4870 X2 as a future Mac Pro option is that affords the advantages of CrossFire for both Mac OS X and Windows. And if they don't, we hope ATI/AMD will offer it as a retail kit that is compatible with all models of Mac Pro. We hope Apple will 'leap frog' the GeForce GTX 280 and Radeon HD 4870 to offer the Radeon HD 4870 X2 dual processor card with 2GB of GDDR5 as a CTO option on the next generation of Mac Pro.
