The HD 5670 continues to be a stand out model thanks to the value for money the model represents when it comes to gaming. Sure, you can't game at the highest resolutions, but if you're a casual gamer at 1680 x 1050 the chances are you're going to be able to get a frame rate out of the model that you're happy with.
The latest version of the model to arrive comes from GIGABYTE and packs the OC label on it. GIGABYTE has really been a bit of hit and miss when it comes to OC video cards. Sometimes we see a small bump in clocks and other times we see models that come under the Super Overclock series that sport some serious MHz.