I ran GPU-Z ver. 2.8 on my Dell Studio 17 and it reported some incorrect information when compared to 3DMARKS VANTAGE. If I am reading this right, then CPU-Z ver. 2.8 is reporting that my integrated ATI graphics chip does not have a PCI Express 2.0 bus. The sensor data shows the GPU and memory clocks running a little less than half their default clock. 3DMARKS VANTAGE, however, shows the GPU and memory clock running close to their default clocks at 452.3 MHz and 499.5 MHz, respectively. Does GPU-Z support Dell installed M86 ATI chips?