ASUS is working on the GeForce GTX 670 DirectCU Mini, a high-end graphics card that's size-optimized for mini-ITX gaming PC builds. NVIDIA's reference-design PCB for the GTX 670 already established that compact (<20 cm long) PCBs are very much possible for the chip. ASUS designed its own short (17 cm long) PCB with a 5-phase VRM, which draws power from a single 8-pin PCIe power connector, instead of two 6-pin. This allows you to make do with compact PSUs that only feature one PCIe connector, and avoid wasting Molex cables on the second 6-pin.

What's more interesting about the GTX 670 DirectCU Mini is its cooler, which appears to use a combination of a thick metal plate that draws heat from VRM and memory on the obverse side; and a round aluminum fin-stack, which could be cooled by a single ~80 mm fan. ASUS did not release pricing or availability information, and is still gauging community interest in such a product.