DriverHeaven posted a comparison review between nVidia 9800 GTX+ and Radeon 4850 based video cards

For a few weeks it appeared as if ATI would easily achieve this goal but some aggressive price repositioning of the 9800 GTX by Nvidia as well as a snap announcement of the 9800 GTX+ mean the 4850 is hitting a very crowded but interesting market.

Today we will be running the two new products through a selection of the latest games at resolutions up to 2560x1600 as well as delving into some Blu-Ray playback testing and overclocking in order to establish how well they perform. We will also be looking at how they compare to the more expensive cards currently available to see if the extra cash outlay really does benefit the consumer, or if these new cards provide excellent performance at a much more attractive price.

VisionTek & MSI Radeon 4850s V NVIDIA 9800 GTX+ Review