AMD has just releases the Radeon HD 6990 Dual-GPU Video Card. As can always be expected from other Radeon products, the new Radeon HD 6990 is claimed to come with great feature and performance. The new card is available with codename Antilles, and available with two BIOS configurations, which can be changed easily and quickly. For examples, both configurations are able to handle the process of 40nm, but the HD 6990 has the ability of engine clock to 830 MHz while the HD 6990 OC has the ability up to 880 MHz. Both configurations mostly come with similar abilities, such as memory types of GDDR5 4GB, memory bandwidth up to 32 GB per second, or memory data rate of 5.0 Gbps. But some features are different, such as maximum power of PowerTune for 6990 is about 375W, while the 6990 OC is about 450W. Some features may be different, but the whole performance won’t be affected much and won’t change much. the Radeon HD 6990 sells for around 700 US dollars.