Here's a comparison of an upconverted dvd on a 7 inch screen, versus a blu ray on a 7 inch screen. The 15" HP Envy laptop, which is basically identical to the Macbook Pro in terms of dimensions, design and power consumption, opts to use the i5 processor, 1920x1080 resolution and a blu ray drive alongside a 1GB ATI 5830 GPU in the high end models. So the next MBP using a weaker GPU than basically a MBP knock off already offers would make the MBP seem poorly planned out and poorly designed. Toggling between GPUs isn't anything that has to be restricted to Nvidia. ATI's GPUs are fully capable of doing the same thing. I just think it's a really horrible idea to go with Nvidia now. They are still stuck in the last generation of GPUs, a generation that isn't very energy efficient compared to the ATI 5830. Nvidia already announced that they're pretty much abandoning computer GPUs and going to focus on making GPUs for servers, and for cellphones (the Ion) from now on. Which means they won't have much if anything to offer for the new MBPs. Plus, Nvidia's new generation of GPUs, the Fermi is extremely power hungry and extremely big. So we won't see a mobile version of it, probably ever. If Apple sticks with Nvidia, we're going to be stuck with outdated GPUs for the next two years atleast. Notebookcheck.net provides a list of every laptop GPU in the market today, benchmarks their performance and classifies them based on how good they are. Class 1 GPUs are considered the best of the best. The higher the class number the worse they perform. They currently rate the entire ATI Mobility 58XX series (including the 5830) as Class 1 GPUs. And the series has the advantage of being cutting edge and supporting DirectX 11. Actually, I think by looking at the GPUs rated Class 1, and researching the amount of power they use, we can figure out which GPUs Apple should use in the next MBP to get the most bang for the buck (the most performance per wattage). The Nvidia 9600M GT GPU that is currently found in MBPs draws 23 watts of power. The ATI 5830 GPU draws 24 watts of power, so it would be a good choice in my opinion. Though IMO, using a GPU that uses the much faster GDDR5 memory instead of the GDDR3 memory that the ATI uses would be a very welcome move. Here is a list of the laptop GPUs the site ranks as Class 1 so we can figure out other good choices for Apple to use. I'm only familiar with the watt requirements for the ATI 5830. Class 1 » GeForce GTX 285M SLI » GeForce GTX 280M SLI » Mobility Radeon HD 4870 X2 » GeForce GTX 260M SLI » GeForce 9800M GTX SLI » Mobility Radeon HD 5870 » Quadro FX 3800M * » GeForce GTX 285M * » GeForce GTX 280M » GeForce 9800M GT SLI » GeForce 9800M GTS SLI » Mobility Radeon HD 3870 X2 » GeForce 8800M GTX SLI » Mobility Radeon HD 3850 X2 » Quadro FX 3700M » Mobility Radeon HD 4870 » Mobility Radeon HD 4860 * » FirePro M7740 * » Mobility Radeon HD 4850 » GeForce GTX 260M » GeForce 9800M GTX » Quadro FX 2800M * » GeForce 9800M GT » GeForce 8800M GTX » Quadro FX 3600M » GeForce GTS 360M * » GeForce GTS 260M * » Mobility Radeon HD 5850 * » GeForce GTS 160M » GeForce 9800M GTS » GeForce 9800M GS » Mobility Radeon HD 5830 * » Mobility Radeon HD 4830 » NVIDIA GeForce GTS 150M Link: http://www.notebookcheck.net/Comparison-of-Graphic-Cards.130.0.html If you're interested in gaming performance, here's another helpful link illustrating how weak the three year old 9600M GT GPU really is compared to the alternatives available on the market today (in Windows, use F3 to quickly navigate to different GPUs)... Link: http://www.notebookcheck.net/Computer-Games-on-Laptop-Graphic-Cards.13849.0.html Click on any GPU's name and to the right will be a list of all the GPUs ranked by performance without the detailed descriptions.