VisionTek VisionTek sells AMD Radeon based video cards, such as Radeon HD 4870, and Radeon HD 6870. The video card Radeon HD 4870 failed prematurely (only 3 years old) mainly due to its high idle temperature (80celsius idling) Gurnee, Illinois

VisionTek Radeon HD 4870 (512MB) was purchased about 3 years ago, and it failed recently due to its high operating temperature (idle temperature was 80 celsius, while load temperatures was beyond 90 celsius). Based on my research, the video card was idling too hot even with plenty of ventilation (more than 4 fans installed, excluding CPU fan, Radeon's own fan, and powersupply's fan). I have 3 custom built PCs, and they all have similar aged video cards (Geforce 9800GT and Radeon HD 3870 from Sapphire), yet they operate at much lower temperatures (approx 39 celsius at idle, 51 celsius when running under loads). The Radeon HD 4870 was poorly designed by VisionTek, and it was not properly cooling itself, and because of this reason, it failed prematurely. I have owned electronic components that lasted far longer than 3 years, and the VisionTek company didn't offer to help at all.

I am disappointed with the VisionTek's product, and I would not recommend its products to any of my friends.