Product uses two 2048x2048 textures, one for diffuse color, the other for bump mapping. Model is UV unwrapped with no overlapping for easy painting/retexturing.
Preview Images are rendered in mentalray, but the materials are standard, so they will function in any renderer and effortlessly fit into any workflow. The last two thumbnails demonstrate this using the Quicksilver and Scanline Renderers.
Should you need these in an alternate format, contact TurboSquid support before you buy. They convert the product to your desired software and test the file for you at no extra charge. :)