I recently installed a radeon HD 5770 into my new desktop and I noticed while its tempurature for say browsing the web is only 50C, when I am playing Red Faction guerilla my GPU temp is around 70C and when playing farcry 2 with Direct X 10 on very high the temp is almost 80C, is that a safe running temp or is that a sign I need to upgrade my GPU or get cooling paste.