AMD Radeon HD 7770 spiky gpu load while playing Minecraft?

Why i'm getting spiky gpu load when i'm playing Minecraft. It raises or drops every second. I'm scared that it will damage my videocard. I had problem with my previous videocards when playing videocard. I don't wan't to burn videocard that cost me 130 Dollars.

Here is my GPU-Z:
image

Added (1). I had problem with my previous videocards when playing Minecraft… Not videocard.

Added (2). My specs:
Pentium(R) Dual-Core E6500 2.93 GHz
RAM: 3.00 GB
Windows 7
AMD Radeon HD 7770 1GB

Its fine. Your video card is also use to help windows move along too. Its hidden in the windows 7 and 8. Your gpu is just fine.

Your video card didn't die because of minecraft. It was just a p.o.s. And the spikes in gpu usage are fine. It can't damage anything it is just a gpu that is working… Temperature is all you need to be concerned about. As long as it stays cool or below 80 degrees celcius then your card will be just fine