AMD sent out a slide on the Radeon HD 4830 performance vs the GeForce 9800 GT with 6 games benchmarks. No words on the system configuration or drivers used for these tests. AMD is banking heavily on this card to outperform and to outsell the GeForce 9800 GT at the same price point. In another slide, it stated that the Radeon HD 4830 series delivers up to 1.6x the performance per watt of AMD's previous generation GPUs. 6.73 GigaFLOPS per Watt vs 4.10 GigaFLOPS per Watt for the HD 3850.