the m15x comes with the gtx260m for 1400$ the m17x comes with the 4870 for 1800$. dell tells me that the gtx260m is better but all the benchmarks tell me that the 4870m is i need to know the truth on which is better also the 3dmark05 scores are higher on the 4870 please someone help me i need to order the computer today
An underclocked 4870 still beats an 8800GT. That's pretty close to the desktop equivalents.
Here's an article that explains NVIDIA's naming scheme:http://www.tomshardware.com/reviews/geforce-gtx-280m,2353.html