That is the inside of my pc, I always put off getting rid of the dust in my pc. While playing GTA IV I noticed my cpu temps roughly 57ºC, gpu was around 68-70ºC. My idle temps before my current cleaning was cpu at 46ºC for both cores and 56ºC for the gpu. Temps are now 27ºC/29ºC for both cores on my cpu and 54ºC for my gpu. What a difference!