AMD/ATI has just launched its newest graphics card series, Radeon HD 4600. Two models were launched: Radeon HD 4670 and Radeon HD 4650. Both cards are PCI Express 2.0, have 320 stream processing units and support DirectX 10.1 programming model and CrossFireX technology. The difference between Radeon HD 4670 and Radeon HD 4650 is the internal clock and the amount of memory. Radeon HD 4670 works internally at 750 MHz and may be equipped with 512 MB (memory clock of 2,000 MHz DDR through a 128-bit interface) or 1 GB (memory clock of 1,746 MHz DDR through a 128-bit interface). Radeon HD 4650 works internally at 600 MHz and may be equipped with 512 MB (memory clock of 1,400 MHz DDR through a 128-bit interface) or 512 MB or 1 GB (memory clock of 1,000 MHz DDR through a 128-bit interface). Below you can see the manufactures that already launched models based on this new AMD/ATI graphics card series.

• Force3D
• GECUBE
• HIS
• PowerColor
• Sapphire