Wondering if anyone’s given the older Radxa CM boards a try, I’ve seen the talk about the Radxa CM5 as an option. And I was considering upgrading to the Radxa CM5 since it’s a bit more performant for the power than the RPI CM5, but I’ve been underclocking and undervolting the CM5 for thermals anyway.
Got me thinking the Radxa CM4 might be a good middle ground for me? Faster (I think) than the RPI CM4, but probably a bit slower and hopefully more power efficient than the RPI CM5? Just not sure how the pin compatibilities go, and I’m struggling to find the performance/power metrics to even make the comparison.
Edit: Seeing some others asking about it, though more in the banana pi context
Thats probably not a bad idea. Power efficiency, well, maybe. Rockchip parts dont really aim for power efficiency. What I’d really want to know, however, is if the RK3576 has working suspend to ram support and how far along its mainline kernel support its. The ability to suspend to ram is why I use the A06 RK3399 board instead of the rpi boards. I can get all day suspend with this setup, and power consumption while running is about the same as the rpi CM4. I’m not familiar enough with the part to know, though. Also, on the radxa CM5 audio is a problem, I’m betting that would carry over to the radxa CM4. It is nice to have wifi onboard though, thats a step up over the radxa CM5.
Edit after reading the spec sheet more closely:
Well, ok. Its better than the RK3399, but only just. The 3399 is 2x A72 cores and 4x A53 cores, the 3576 is 4 of each. Its not A55 cores like the RK3566. The model number feels a bit misleading. This is basically a souped up RK3399. The biggest benefit would probably be the wider memory interface. The RK3399 caps out at 4gb, the 3576 goes to 16gb.