No, you are incorrect.
And some people think that G80 have 128 pipes. That is complitly wrong. Itīs markting. G80 will have 32pipes that are acomplished with 128 pixel processors. In the case of G71 there are 24 pipes with 48 ALUīs.
Nvidia's G80 has 32 pixel pipes
http://www.theinquirer.net/default.aspx?article=32856
yes there are pipes. And in the case of G80 you donīt know how many they are.
It is said 128 pixel processors/ALUīs, but the G71 has 48 ALUīs and only 24 pipes, so the G80 could have 32 pipes and 128 ALUīs, but the info isnīt out yet.
ATI's R600 has 64 real pipes
http://uk.theinquirer.net/?article=33784
And do you think that because R600 is unified that 64 shaders only? Hitch pipe has can calculate pixel/processor/geometry, but at diferent speed. The pixel part can be 3x faster than the vertex or geometry part.
So you can explayning in a simpler way that R600 has 198 pixel shaders, just because those 64 pipes do the pixel work 3x times faster than the other tipe of work.
And also can be there pixel processors just like the R580. That doesnīt invalidate that de GPU will be unified.