Is it logic to combine 3DS and N3DS sales ?

[nanzano]

Shadow1980 said:

Well, Nintendo themselves lumped the Game Boy and Game Boy Color together even though the GBC was an upgraded Game Boy. It had an improved processor and more RAM among other improvements and IIRC games made specifically for the GBC would not run on the original Game Boy, but it was still tech-wise in the same generation (the CPU was still 8-bit, as opposed to the much faster 32-bit CPU of the GB Advance) and was marketed as just a remodel of the Game Boy, just like the Pocket was. The New 3DS is essentially no different in this regard. Ergo, it really should be treated as simply a new 3DS SKU.

So if  I good understand it is the completly change of the HW architecture the key point?