TurboCache

NVIDIA's TurboCache technology is a method of allowing video cards more available framebuffer memory by using both onboard video memory and main system memory. Main memory is accessed using the high-bandwidth PCI-Express bus.

TurboCache was developed as a means to provide a better cost/performance ratio by reducing the amount of memory modules on the video card. According to NVIDIA, a GeForce 6200 with TurboCache will perform about four times better than the Intel GMA 900. As with integrated graphics, the operating system may report a lower amount of main memory than is physically present when main memory is used.

When TurboCache was introduced on the GeForce 6200 with TurboCache, there was confusion over how much local memory a buyer could expect from the TurboCache enabled video card. This figure could lie between 16-128MiB, with NVIDIA listing only total memory from both video memory and main memory. Eventually, NVIDIA included only video memory sizes on marketing and packaging.