New web rendering service Autodesk Project Neon is an interesting Labs product employing the "unlimited" computing performance of the internet server cloud.
With this free web application (technology preview by Autodesk Labs) you can easily create photorealistic renderings of views in complex 3D DWG models of your AutoCAD projects. So you can push off the resource-intensive rendering jobs from your computers to the scalable network of Autodesk computers (or probably rather Amazon computers). You don't need to burden your CAD workstations or upgrade their performance parameters.
You can upload your drawing either as a DWG file as an eTransmit ZIP package containing the neccessary xrefs and material textures. The 3D DWG drawing must contain the scene model, light definitions and first of all predefined named views, which you will then select as a rendering parameter.
You can find the Project Neon service on neon.labs.autodesk.com. After you login to your Autodesk account (from your Subscription or from Autodesk discussion forums) you can upload your project drawing, choose the requested view for rendering and the rendering quality. Then you can just wait till the U.S. servers diligently process your project. Depending on the complexity of your scene and the selected resolution you can expect the results in minutes up to tens of minutes. You can let the service render multiple scenes in parallel. You don't have to wait for the results - the service will send you a notification e-mail when the render is finished - then you can pick up (download) the final rendered image (PNG or JPG) from your account.
E.g. the sample scene (7MB DWG) takes about 12 minutes to render in high quality and in the resolution of 1920x1080 pixels.