Jetart VC2000 One for All VGA cooler
 

Once I was sure the temps had reached the maximum whist running ati tool to scan for artefacts I set about seeing what the best overclock I could achieve with this cooler. The previous best with stock cooling this card had achieved was 465mhz on both the core and memory. After many runs of various benchmarking programs the max stable clocks I achieved were 477mhz core and 549mhz memory. All I can say is my graphics card must have been crying out for some ram sinks. Even whilst overclocking and benchmarking the temperature never rose above 54°C