Advanced Micro Devices (AMD) officially announced the release of Radeon HD 6790 for sale, which should be a good competitor for NVIDIA's GeForce GTX 550 Ti.
This model is built on PCI Express 2.1 x16 and is covered with black casing, it also uses double-layered cooling. The core of this marvelous piece of beauty is built on Barts LE chip with 800 multi-threaded processors, and 40 textured modules (TMU). Theoretically, Radeon HD 6790 reaches 1.34 trillion operations in half a second. This graphics card has 1GB of GDDR5 memory with 256-bit interface and through rate of 134.4 GB/s. Frequency of the video card is 840/1050 MHz. Level of TDP doesn't exceed 150 Watt during load and 19 Watt on idle. Back panel is equipped with ports, like DVI, HDMI 1.4a and few MiniDisplayPort 1.2.
Accelerator supports DirectX 11 Shader Model 5.0 and multi-channel 7.1 HD Surround Sound. Also, supports technologies: AMD HD3D Technology, AMD Eyefinity Multi-display Technology and AMD CrossFireX Multi-GPU Technology.
According to AMD's test Radeon HD 6790 is faster and better than GTX 550 Ti. Look at the picture below.
The original version of this video card Radeon HD 6790 PowerColor is available for sale at various online retailers for $150.