Sapphire HD 5770 BIOS Botchup Leaves Users with Just 720 Stream Processors
 

Subjectively, the response doesn't seem satisfactory or working towards solving the problem. GPU-Z displays the actual number of shaders (stream processors) available to the operating system, not how many are physically present on the GPU-die. With this issue being reported by users spread across various markets, it is clear that Sapphire may have an entire lot/batch of HD 5770 Vapor-X graphics cards carrying the BIOS which enables only 720 stream processors. Affected users are advised to contact Sapphire support to resolve the issue. Expert users can find the corrective BIOS which enables all 800 stream processors (VER012.013.000.001.034705) in our VGA BIOS Database


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