Hallo @ all
I have a Motherboard with an Intel Z68 Chip. The CPU is a Sandy Bridge 2500k with integrated GPU. Additional I use a NVIDIA 570GTX GPU.
I connect the monitor with the Sandy Bridge GPU (HDMI connector from motherboard). Then I used the SDK BandwidthTest to find out the maximum bandwidth between the GPU und the CPU. (System : Win 7 64Bit)
CPU to GPU 4000MByte/s
GPU to CPU 4000MByte/s
I thought if I use a integrated GPU the I can increase the bandwidth to 16GByte/s because no monitor data must transfer about the PCIe bus to the GPU. Is this a driver problem and how can I fix this?
My DDR3 bandwidth is read: 18GByte/s write 18GByte/s