Softwarepatch is Uniblue's online bible for all software-related matters.
AMD Radeon HD 6990
Never look for drivers again. Download the latest version of any driver now

Applies to:

AMD Radeon HD 6990






Windows 7 32-bit

File Size:

146.47 MB

File Name:


Release Date:




Last Updated:



AMD Radeon HD 6990


/5 from 20 reviews.


  • Type: Video Card
  • Interface: PCI Express 2.1 x16
  • Dual Card Feature: AMD CrossFireX multi-GPU technology
  • Memory Clock: 1250MHz Memory Clock (5.0 Gbps GDDR5) - 320 GB/s memory bandwidth (maximum) -Up to 880MHz Engine Clock
  • Memory: 4GB GDDR5 Memory


The Radeon HD 6990 is an AMD ATI Radeon HD dual-GPU based graphics card. It features two Cayman XT GPUs. Memory wise, the Radeon HD 6990 comes with 4 GB: that's two GB per GPU. The AMD Radeon HD 6990 graphics card provides dual-BIOS capabilities as well. This capability can be controlled by a switch immediately next to the CrossFireX connector on the board. The switch transfers between the factory-default Performance BIOS1 of 375W TDP, and a higher Performance BIOS2 with higher clock speeds and up to 450W TDP of performance.

PC Mechanic - Fix your PC's Windows registry errors.

The usual memory processing capacity of a modern video card such as the AMD Radeon HD 6990 starts at 128MB. There are others for video development and gaming, and these are bundled with at least 8GB of memory processing capacity. Video card memory is useful in quickly buffering digital data like screen images for future display. A video card needs a GPU (Graphics Processing Unit) and display circuitry. It also often uses special high-speed or multi-port memory . A video card can be used in creating 3D or 2D images. The GPU of a video card is used to accelerate graphics. Good memory clock speed of a modern video card, such as the AMD Radeon HD 6990, is generally 400MHz to 3.8GHz.