As part of a machine shuffle, I'm debating a rMBP 15", but would be using with an external monitor at work, and I have concerns about the power consumption:
I've noticed my 2011 mac mini (ATI 6630) gets noticeably hotter when an external monitor is connected, even if the machine isn't doing anything. iStat Menus seems to show this is all in the GPU power dissipation - rather than powering down, the GPU seems to stick at ~8 watts.
I did some further tests, and just hooking a monitor to the thunderbolt port cause the power to go up (even if HDMI unconnected). Connecting to only HDMI gives lower power.
My 2011 iMac (ATI 6970) exhibits similar behavior, though the increase in power is more like 20+ watts, and is enough I made it easy to disconnect the monitor to get the machine cooler when I don't need the 2nd monitor.
Do the newer machines solve this issue? I'm hoping it was just a driver or hardware issue with that years ATI cards, but if it still happens I might shy away from the macbook - would prefer not to have the GPU working hard all the time....
I've noticed my 2011 mac mini (ATI 6630) gets noticeably hotter when an external monitor is connected, even if the machine isn't doing anything. iStat Menus seems to show this is all in the GPU power dissipation - rather than powering down, the GPU seems to stick at ~8 watts.
I did some further tests, and just hooking a monitor to the thunderbolt port cause the power to go up (even if HDMI unconnected). Connecting to only HDMI gives lower power.
My 2011 iMac (ATI 6970) exhibits similar behavior, though the increase in power is more like 20+ watts, and is enough I made it easy to disconnect the monitor to get the machine cooler when I don't need the 2nd monitor.
Do the newer machines solve this issue? I'm hoping it was just a driver or hardware issue with that years ATI cards, but if it still happens I might shy away from the macbook - would prefer not to have the GPU working hard all the time....