I have an Nvidia GeForce GTX 750 GPU with two gigabytes of memory. I followed Andrew Price's Tutorial on how to make realistic towels in Blender, and I was only able to do 700,000 hairs (before my GPU ran out of memory), instead of the 1,000,000 hairs that he did. As a result, mine didn't look as realistic. I'm working on a bathroom interior, and I'm wondering if there is anyway to achieve a similar result without using a hair particle system? It's okay if it doesn't look good close up, it will be farther away from my camera in the scene. Thanks!
You could do something like what is shown here http://www.blenderguru.com/articles/how-to-render-a-complex-scene-without-crashing/
You could change the random seen on the particle system on a second layer and disable emitter visibility for one layer.