Sapphire Radeon HD 5770 review also featuring Gainward Radeon HD 4870. Sapphire Radeon HD 5770 has 11% higher clock speed, 25% higher memory speed and the same 800 Shader Processors compared to the Gainward Radeon HD 4870. Sapphire Radeon HD 5770 has more advantages such as GDDR5 memory and DX11 but does have one disadvantage which is the 128Bit Memory Interface. Will these advantages allow the Sapphire Radeon HD 5770 overcome the Gainward Radeon HD 4870?

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