Comment Re:so? (Score 1) 79
Using a beefier GPU isn't necessarily the wrong choice, assuming you can sink enough heat. From my perspective, the critical questions are how it compares in terms of power per watt and minimum idle power.
For example, consider two GPUs. The faster chip uses 80% more power at full throttle, but gives you twice the computing power. So if you need to do 10 units of work, the slower ship will take 10 seconds to do it, and the second one will take five seconds, but will use the same amount of power as the first chip would use in 9 seconds. Assuming the idle power on the faster chip doesn't eat up all the gains, you'll end up with better battery life by using the faster chip.
Unfortunately, I couldn't find full specs for the Nvidia Quadro K620M, so I can't say for sure whether that's the reason for that design decision.