Just over a week after AMD unleashed its powerful In terms of performance, the new Radeon HD 5750 manages to beat both the HD 4850 and the GTS 250 when running 3DMark06 and 3DMark Vantage's synthetic tests -- although by small margins. We'll of course have to reserve judgment until we can put this card to the test in real-world scenarios, but it seems the Radeon HD 5750 could give Nvidia's GeForce GTS 250 a run for its money when it launches (presumably) later this month.