The size of the sensor, other factors being equal, determines the number of photo-electrons captured and the signal to noise ratio varies as the square root of the number of photons captured. If the linear dimension of the sensor is doubled, the area is is increased by a factor of 4 and one will gain one stop of DR.
That is true, mostly.
The upshot of this is that the size of the sensor is taken into account.
Up to a point, yes. But I said in my first message that the DXO tests "
will show indirect differences (e.g. lower noise coming using larger sensels).". Actually, they have to. There is no other way, unless one breaks the laws of physics.
But the tests do not show other effects. Therefore your last sentence should actually read: "The upshot of this is that the tests are designed to minimise the effects of the size of the sensor to the lowest point made possible by the laws of physics."
Anyway, I do not think that discussion is leading us anywhere. I was simply pointing out that DXO, whatever they are testing, do not tell the full story. Can we just simply agree that 2 camera-lens combination with the same DXO score may give very different results in practice?