This is very late, but I want to point out a few things. First of all, the chart has incorrect sp tflops for 7870 . it should be 2.56. Even if AMD did use the new library(which they didn't since the die is a good deal larger for the number of transistors added) you would still have all the transistors, just packed into a smaller space. I've looked at the related wikipedia pages that show 8850 with only 1GB of vram despite it being more powerful than 6970(which came with at least 2GB vram). 7950 is down to 290 AR and will overclock to 7970(ghz ed?) levels with max tdp 200w and average tdp of 140w(based on similarities to 6950).A 2GB 7850 goes for 185-190 with 130w max tdp and much lower average tdp(can overclock to 7870 speeds or faster, putting it in 7950 territory). Either AMD has relaxed the voltages a bit, posted higher average tdp on the new cards vs max tdp on the old ones, or both. The 8870 might be a decent deal thanks to some overclocking headroom, but I wouldn't buy a 8850 with only 1GB of vram at 200(more for 2GB models) vs a 2GB 7850 for less than 190. Just sayin'.