The basic layout from NV40, with two primary ALU's capable of dual issuing instructions, with the first handling the texture address processing, remains the same but changes to the ALU's should considerably increase the per-clock performance. NVIDIA say they have analysed 1300 shaders utilised in current and upcoming games and noticed that the most frequently used instruction is MADD - although NV40 has two ALU's they are not in fact each fully featured with the same instructions, instead one is a MADD unit and the other is a MUL unit; for G70 NVIDIA say they have added a MADD and MULL into each of the units that didn't previously contain them and in fact we are led to believe they are now complete instruction duplicates of each other (although, obviously the second unit doesn't have texture address processing instructions).