Comment by watusername

9 hours ago

Buyers beware: 4-core A53 is genuinely unusable (original Pinebook/PinePhone specs), A55 is better but I still wouldn’t recommend buying. You may expect performance similar to 15+ years old desktops.

Creator here,

For the IMX8MP - The pinephone was 1.2 GHz, this is 1.8 GHz on all four cores. As far as geekbench goes it hits between the Pi 3 and Pi 4, faster EMMC and LPDDR4 gives it a bigger boost compared to the Pi 3. The PCIe 3.0 is also there. Yes it is not equivalent to a desktop use, but for a phone sized usecases, the processor has not been a bottle neck. The advantage you get is a battery life that goes 7 hours on idle with the display on, and on sleep it can go upto 8D and wake up instantly.

The IMX95 is 6x A55 at 1.8GHz but you can check the geekbench below, it matches the single core performance of Pi 4 and beats it at multi-core performance while offering LPDDR5. But at the same time, is only 15% more power hungry than the 8MP.

So the way we see it -

Pi 3 < Comet 8MP < Pi 4 < Comet 95 < Pi 5

Ref: https://browser.geekbench.com/v6/cpu/compare/15259040?baseli...

Edit: The IMX95 is 6-cores A55 and not 4-cores

And what’s wrong with a 15+yo desktop? Light OS, get stuff done. Are we trying to run a Switch emulator on this thing?

User of Librem 5 phone with this CPU here. It works fine as a daily driver. Firefox with Noscript works fine in desktop mode. See also: https://puri.sm/posts/the-danger-of-focusing-on-specs/

  • Off-topic but curious if you experience this issue my Librem5 exhibits - I use my L5 mostly just to play mp3s. Regardless of being powered over usb-c or running on battery, it frequently has audio blips reminiscent of some old laptops briefly going in and out of deeper sleep states long enough for an audio blip.

    Have you noticed something similar? do you listen to music on your L5?

    Edit: I should also mention it does this regardless of audio out the internal DAC+3.5mm TRS, or over a USB MBox attached to a dock. It seems to be something quite low-level disabling interrupts for too long, something like that.

    • I do not experience any problems while playing music (except initial buffering on Bluetooth). I recommend to ask for advice on https:/forums.puri.sm

First time I heard about this project what's wrong with the CPU? I mean what makes it unusable?