You'll get the same performance, but you'll see a decline in the battery charge when really putting the hardware to the test. I've seen it happen just using a G

You'll get the same performance, but you'll see a decline in the battery charge when really putting the hardware to the test. I've seen it happen just using a Google Hangout. Modern macbooks can ship with a 40 or 60 amp power supply, whereas they should have 90 or 120 amp power supplies. They assume, mostly correctly, that the really intensive workloads will complete before the internal battery is in trouble.