Sapphire has just launched a Radeon HD 4850 graphics card equipped with 1 GB GDDR3 memory. SAPPHIRE HD 4850 1GB, as it is called, has the same specification of Radeon HD 4850 standard (core clock of 625 MHz and memory clock of 1,986 MHz (993 MHz DDR) and 256-bit interface) and it is designed for the users who demands more memory for specific applications like rendering. Besides 1 GB model, Sapphire also offers a factory-overclocked Radeon HD 4850 card (core clock of 675 MHz and memory clock of 2,200 MHz (1,100 MHz DDR) and 256-bit interface) equipped with 512 MB memory.