Another week marks the launch of yet another DirectX 11 GPU from AMD - After last week's low-end Radeon HD 5450, today we see the introduction of another "Redwood" GPU core derived board which looks to sit in-between that part and the Radeon HD 5670. Named the Radeon HD 5570, today's new offering promises a compelling level of performance at an extremely low price, but can it deliver on that potential? We take a look at Sapphire's Radeon HD 5570 1GB to find out.