This is not an exhaustive list, merely some variants I’ve discovered while google’ing about the NB10.
I’m still not sure what the NB15 is exactly – it’s possibly just the exact same hardware as the NB10 but sold in different markets.
|Model number||Part number||CPU||RAM||Disk||Bundled OS||Colour||Notes|
|NB10-A-10N||PU141E-01M023CE||Celeron N2820 (dual-core 2.13-2.39GHz)||2GB||500GB HDD||MS Win8 64-bit||Silver metallic||No touchscreen?|
|NB10t-A-10P||PU143E-00701MEN||Pentium N3510 (quad-core 2GHz)||4GB||500GB HDD||MS Win8 64-bit||Black||No touchscreen?|
|NB10t-A-101||PU141E-00E00GEN||Celeron N2810 (dual-core 2GHz)||4GB||500GB HDD||MS Win8 64-bit||Silver metallic||UK/IE market?|
|NB10t-A-102||PU141E-00C00GEN||Pentium N3510 (quad-core 2GHz)||4GB||500GB HDD||MS Win8 64-bit||Silver metallic||UK/IE market?|
|NB10-A-104||PU141E-00C00GEN||Celeron N2810 (dual-core 2GHz)||2GB||500GB HDD||MS Win8 64-bit||Silver metallic||EU market?|
|NB10-A-105||PU143E-005019EP||Celeron N2810 (dual-core 2GHz)||4GB||500GB HDD||MS Win8 64-bit||Black||No touchscreen?|
|NB10-A-106||PU143E-008016EN||Celeron N2810 (dual-core 2GHz)||4GB||500GB HDD||MS Win8 64-bit||Black|
|NB10-A-10U||PU141E-01H028S4||Celeron N3520 (quad-core 2.42GHz)||4GB||500GB HDD||MS Win8 64-bit||Silver metallic||No touchscreen, Swiss market, QWERTZ keyboard|
|NB10t-A-10H||PU143E-00P01YFR||Celeron N2820 (dual-core)||4GB||500GB HDD||MS Win8 64-bit||Black||With touchscreen, French market|
It looks like the “t” suffix in model number may indicate touch-screen, and a model without the “t” doesn’t have the touch-screen enabled.
It appears that model numbers continue upwards from 106, indicating various different languages offered – PT, FR, DE/AT at least – but all variations on the same theme:
Windows 8, N2810/20 or N3510/20, Black or Silver, and perhaps there are some 2GB models.
There appear to be some variants shipping now with newer CPUs. The “original” (mid-2013) NB10 lineup featured the N2810 and N3510 CPUs. Newer models feature the slightly faster N2820 and N3520 which replaced them.
Please do comment if you have any better information, and I will update this post.