wanderer11 :
Does anyone understand this naming scheme? It looks like the R9 is Radeon 9000 series and the 290 is the model so I think R9-280 would be the next lower card in the series.
Larry Bob :
If the Rx signifies generation, and the whole reason for going to a new naming scheme was because they're running out of generations with the current naming scheme, why did they start on 9? This makes absolutely no sense.
R9 means the gategory (the third number in the old naming system). So r9 will allways be the "best" possible GPU R8 the second best R7 the third and so on. Very much like intel i7, i5 and i3.
So the first part means the gategory or GPU used in the card.
The second number in the generation so if the best card now is R9 290x the next generation will be R9 390x (in old numbering system the first number).
The last two nubers are for the situation within the gategory so R9 290x and R9 270 use propably (this has not been confirmed) the same GPU core, but the later is a cut down version or has lower clockspeed (like 7970 and 7950 are now) (so the same as with the old system).
All in all this makes it very easy to recognise the GPUs. R9 will allways mean the flagship GPU core and last two the relative situation within that gategory or GPU core.
If I change the old AMD CPU number to this new system it would mean something like this:
7970 = R9 170
7950 = R9 150
7870 = R8 170
7850 = R8 150
7790 = R7 190
7770 = R7 170
7750 = R7 150
and so on...
if we think that 7970 is considered the first generatio on GCN. it is actually sensible why they release the new cards to directly RX 2XX (so second generation). It could allso mean that they will rename some of these old cards to the new naming scheme! So if you see in the shop r9 170 you know that it is just old 7970 renamed and not the new r9 270 (if there will be any card that is named like that when 290 seems to be the new flagship...)