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I was having exact same problem and done a ton of research on the issue. Ultimately y I decided to buy eGPU which solved my problem. It seems that Radeon is ta
by xlii 5y ago
I was having exact same problem and done a ton of research on the issue. Ultimately y I decided to buy eGPU which solved my problem.
It seems that Radeon is taking a lot of power even on idle screen and with low load. This increases temperature which in turn creates environment where throttling on CPU happens so not only Macbook gets hot but also it’s much slower.
After research I found out that I can either work in clamshell mode (and I’d rather grew fond of having MBP + external monitor) or find a way to mitigate it.
I decided to opt for eGPU which solved issue immediately. MacOS feel snappier, I don’t remember last time when fans started and it’s cool to touch. Not an exactly cheap solution for a i9 MBP but, eh, you do what you have to do.
eGPU brings its own share of problems to MacOS (like ejecting it is not a simple thing - I always have to resort to doing this manually from console) and pulling the cable will kernel panic, but the upside is that I get quite nice connector hub and photo editing software works much nicer.
I do think it’s a shame that Apple even designed MBP like that. You buy beefed out MBP (5600M wasn’t even available when I was buying it - and supposedly it fixes this issue) and it can’t handle so complex task as displaying the second monitor without launching the rocket engine.
- fdroidmstrrce 5y ago> you do what you have to do. No I don't. Are you an iOS dev?
- ChrisMarshallNY 5y agoI have two eGPUs; both of which are collecting dust. One is a BlackMagic eGPU Pro (since discontinued). The main reason that I disconnected them, is that I plan to get an M1X/M2 laptop, once they come out, and I know that the new chips don't work with eGPUs, so I might as well get used to it (Makes for simpler under-desk wiring, too). Also, the eGPUs seemed to introduce random crashes, and I don't like running on discontinued kit.
- sizzle 5y agoI’ll take them off your hands if interested. I need to beef up my i7 Mac mini.
- ChrisMarshallNY 5y agoThanks. These are not personal devices. They belong to the corporation (I own), so I can't just sell them off. I'll have to have a chat with my lawyer, next time I see him, and see what would be a good way to deal with them.
- sizzle 5y agoAwesome, email is in profile if you want to chat.
- alisonkisk 5y agoIt's not a bad design choice, it's a driver bug, since 2017. The power/heat is due unnecessary clocking up when it isn't even doing any work. The non-dGPU version does better at the same task.
- xlii 5y agoI’m quite sure that’s not a driver bug. Reason for that is that Apple is well aware of the issue and that’s why it’s fixed in MBPs with 5600M. If that would be solely driver bug it would be patched by now (and that’s an issue since 2019, so not exactly new).