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  • 11 Comments
Joined 1 year ago
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Cake day: June 15th, 2023

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  • Because that’s expensive and can be done with a camera.

    Expensive, as in probably less than $600? Compared to the $35000 cost of a tesla?

    (comparing the cost of the iPhone 12 (without lidar) and iPhone 12 pro (with lidar), we can guess that the sensor probably costs less than $200, so 3 of them (for left, right, and front) would cost probably less than $600)

    lidar can actually be very cheap and small. Unfortunately, Apple bought the only company that seems to make sensors like that (besides some other super high end models)

    There have been a lot of promising research papers on the technology lately though, so I expect more, higher resolution and cheaper lidar sensors to be available relatively soon (next couple years probably).



  • Their CPUs are actually really good now, when the apps are actually optimized for them. Especially in single core, they are very competitive with top Intel or AMD chips while being way more power efficient.

    ex: in Geekbench 5.1 single core the M2 max gets 1967 points (85%) compared to 2311 points from the 7950X3D and 2369 from the 14900k. The M2 max (12 cores (8 p + 4 e), 12 threads) can draw a maximum of 36 watts while the 7950X3D (16 cores, 32 threads) can draw around 250 watts, and the 14900k (16 cores (8 p + 16 e), 32 threads) can draw around 350 watts.

    Apple’s GPUs are definitely lacking though, in terms of performance.