Today is a big day in the world of graphics cards as you can purchase an ATI Radeon HD 5000 series graphics card with full DirectX 11 support for under $100! AMD has announced a trifecta of new graphics cards this morning that expand AMD's already impressive lineup of their latest generation graphics cards.  The cards being announced today are the Radeon HD 5670, Radeon HD 5500 and the Radeon HD 5450. These cards come nearly three months after AMD released the ATI Radeon HD 5700 series of graphics cards in October. AMD gave birth to the Radeon HD 5000 series on September 23rd, 2009 when AMD released their 'Evergreen' series of Radeon 5800 graphics card with the Radeon HD 5870 for their high-end offering at $379.99. Exactly one week later they released the Radeon HD 5850, which featured two fewer SIMD engines and lower clock speeds, but came at a lower price point of just $279.99.  The ATI Radeon HD 5700 series of graphics cards is code named 'Juniper' and features a core that was basically half of what a Radeon HD 5800 series card has. The new Radeon HD 5600 series begins with the Radeon HD 5670 and like you might have guessed it features half of a 'Juniper' Core (see image) and is code named 'Redwood' for those that like to keep up on code names. The Radeon HD 5500 and 5400 series were announced today as well, but are not yet available in the market. Once they come out they will complete AMD's top-to-bottom line-up of DirectX 11 class cards. We were told that these entry level budget graphics cards will be in the $49-$80 price range. Let's talk more about the Radeon HD 5670, which is the card that we are looking at today.