Got one 280x Sapphire vapor-x and Asus 280x DCII TOP. I would say the hashrates are pretty much the same (no custom bios just 1050/1080 and 1500)
But when it comes to heat and noise... the difference is day and night
Asus blows sapphire out of the water so bad it aint funny. ++85c core and +110c VRM's on the vapor-x! Fan noise is also terrible. Mind you i kept them on my normal Fractal R3 case with 5 fans but still. I can run the Asus at 50% fan while staying at 75c full load (VRM max 75). I would get the Asus for rigs without cases and pretty much anywhere if it were in stock. Sapphire Vapor-X if its the only thing you can get your hands on with mandatory undervolting and good overall cooling.
But when it comes to heat and noise... the difference is day and night
Asus blows sapphire out of the water so bad it aint funny. ++85c core and +110c VRM's on the vapor-x! Fan noise is also terrible. Mind you i kept them on my normal Fractal R3 case with 5 fans but still. I can run the Asus at 50% fan while staying at 75c full load (VRM max 75). I would get the Asus for rigs without cases and pretty much anywhere if it were in stock. Sapphire Vapor-X if its the only thing you can get your hands on with mandatory undervolting and good overall cooling. I've two vapor-x and 1 Asus and had been working inside the same room with these.
Finally i placed these rigs inside garage yesterday. the noise was making me crazy. asus was silent as a cat. but the vapor-x screamed the hell outta me