Version and / or Patch Used: 1.1
Starting off with 3DMark 11, you can see that we've got a slight increase when compared to the reference R9 270X 2GB. As for being between it and the R9 280X 3GB, you can see we lean more towards the lower-end R9 270X 2GB than the higher-end R9 280X 3GB.
3DMark Fire Strike
Version and / or Patch Used: 1
Getting into Fire Strike, you can see the Sapphire R9 280 Dual-X 3GB OC really sits well between the two models either side of it. What we really want to know, though, is how it performs in some of our games, which we'll take a look at in just a moment.