PC Perspective posted a review on the Sapphire Radeon HD 3650 GDDR3 512MB

When the Radeon HD 3650 card was first released we were a little underwhelmed by the specifications as it seemed that nothing had been improved upon when compared to the previous, RV600-based HD 2600-series of cards. And in fact that is the case: performance remains mostly the same while power consumption has dropped and thus heat output too. That doesn't make the HD 3650 a home run though as NVIDIA's answers to the card continue to stack up and perform better - the 8600 GTS with half the frame buffer was easily outpacing the Sapphire HD 3650 card with 512MB of GDDR3 memory even when overclocked.

Sapphire Radeon HD 3650 GDDR3 512MB Review