Earth's fastest graphics card once again descended on the debut HD 6990

On November 29th, 2010, AMD released HD6970 and 6950. As the debut work of the newly improved HD6900 series, the core of Cayman reflects the power of the new architecture. Although there is still much room for improvement in the future, AMD currently has sufficient performance to enable AMD. Excited to launch its dual-core version, this is the highlight of today - the industry's most anticipated single-card dual-core flagship product: HD 6990.

The AMD Radeon HD 6990 is equipped with two 40nm Cayman XT GPUs. The single GPU has a volume of 389mm2. The dual-core HD 6990 has 3072 stream processors and 192 texture units. Perfectly supports DirectX 11 standard, new generation of Eyefinity technology, UVD3 acceleration engine and AMD's new HD3D technology. Advanced effects such as UVD3 HD engine can provide users with smooth 3D performance and stunning video experience. In addition, the Radeon HD 6990 has a massive GDDR5 memory of up to 4GB on the board. The bit width is 2 X 256bit. Due to the dual BIOS design, the preset core frequency in each BIOS is 830 and 880MHz respectively, and the memory frequency is fixed at 5000MHz. . Through dual BIOS switching, it not only maximizes performance, but also provides dual BIOS backup protection.

Performance, Radeon HD 6990 single-precision floating-point computing capabilities up to an unprecedented 6.0TFlops, double-precision 1.5TFlops, equivalent to a quarter of a single precision, while the geometric throughput of 3.1 billion triangles per second, rasterization performance of 64 pixels Every clock cycle. AMD's official test data show that the HD 6990 overclocked version fully outperformed the GeForce GTX 580 in the DX9/10/11 test, with an average lead of 67%, and some projects even reached 110%, compared to the standard version of the HD 6990. About 8%.