I purchased a newegg.com/Product/Product.aspx?Item=N82E16814131066 ... It is a Powercolor Radeon HD 2600XT with 512mb of dedicated memory. People have reported it displaying 1GB of memory on the card instead of 512mb so I did some research. It appears the card uses Hypermemory even though it is not a low end card. * Does Hypermemory actually "take" your system memory like shared memory? For example. If I have 4GB of DDR2 memory in my computer, will it display 3.5GB in system properties under windows? * Or, does it just use my memory when needed like other high end graphics cards with dedicated memory.