I want to buy whatever Mac is best for gaming. Two years ago, the Mac Pro was probably the right choice, but the specs haven't changed since then (except for minor CPU improvements). The new MacBook Pros were released today, with NVIDIA GeForce GT 650M and 1GB of GDDR5 memory, and I'm guessing they might beat the Mac Pro in gaming benchmarks. Anyone know for sure? How does the 650M compare to the ATI Radeon HD 5770?