The DDR ram costs more than the phone now. Wish I was joking. =3

Pretty much, but you would be surprised at just how low some of these phone RAM setups can go.

I had a low end Oppo 'something', I remember the RAM had a 16bit data bus, the whole thing had a peak theoretical bandwidth at just over 4GB/sec. That phone sauntered through the workload at the best of times. The Mediatek chip was probably not the weaklink for once.

On the upside the battery could go well over a week between charges.

=3