While ATI have clearly cemented the series into our minds ranging from the office orientated HD 5400 series to the dual GPU wielding HD 5900 series, it's clear that there's some models left out. You have to wonder if a HD 5650 is coming along with other models like the HD 5550.
What was clear over the past few months was the lack of a model to sit between the HD 5770 and HD 5850 in terms of price. The jump from the HD 5770 and HD 5850 in terms of performance was also quite large. The HD 5830 was rumored and after some delays the model is finally born.