This resulted in the obsolescence of DirectX 7.0 graphics chips such as the widespread GeForce 2 and Radeon 7200, as well as DirectX 6.0 chipsets such as RIVA TNT2 and Rage 128, and integrated on-board graphics accelerators. Until this generation of games, a powerful CPU was able to somewhat compensate for an older video card. Average Video Hardware requirements: minimum was a GeForce 3 or Radeon 8500, strongly recommended was the GeForce FX, Radeon 9700 (or other cards with Pixel shader 2.x support). The Radeon 9700 demonstrated that anti-aliasing (AA) and/or anisotropic filtering (AF) could be fully usable options, even in the newest and most demanding titles at the time, and resulted in the widespread acceptance of AA and AF as standard features. AA and AF had been supported by many earlier graphics chips prior to this but carried a heavy performance hit and so most gamers opted not to enable these features.