Total Value Rating
The TVR graph is the TPR score divided by the price of the video card. The price of the video card is based on the list price of the model on Newegg.com. In the event the card isn't listed, it will be based on the U.S. $ MSRP given to us by the manufacturer.
In the event we can't source a price from either, the product will not receive a TVR rating. As with our TPR graph, the amount of video cards on the list will grow over time and the price of the model won't change from what it was when first reviewed. For this reason the U.S. $ price that the card is based off will be included next to the name of the model.
In the event you want to find the TVR rating yourself based on the current price, all you have to do is simply divide the TPR number by the list price.
TVR numbers are rounded to the nearest whole number; 100.3 will be 100; 100.8 will be 101 and 100.5 will be rounded down to 100.
With the TPR score divided by the price of the product we can see that it does offer better value than something like a HD 5870 or HD 5970. With the GTX 470 scoring an even 100, though, you can see that from a pure value point of view the HD 5850 is exactly 11% better.
What's worth remembering, though, is that this doesn't put into account features like CUDA, PhysX and Ray Tracing to name just a few of NVIDIAs exclusive technologies. Only you can put the worth of those features on a product and for that reason you may find that the GTX 470 is a better valued product than a HD 5850 because it doesn't have CUDA.