High temperature with great case and ventillation

[polarissucks01]

Hi, I have a CM strorm case which is huge and has plenty of room. I also have a CPU air cooler. Nothing blocking the vents. My msi Radeaon 7950 gets up to 80 degrees playing games with any slight OC. I dont increase the voltage but it still gets really hot. I increase the fan accordingly and once it hits 70 degrees the fan is to go to 100%. The case has plenty of room, any reason for the excess heat?

 

[DjDafiDak]

80C is not that hot, its summer, as long is it dosent go over 85, i wouldnt even think about it.
if you had it for more then a year, you can change thermal paste, that will probably help, but again, 80c is not overheating.