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On the example of the reference AMD Radeon HD 6990 2x2048 MB 2x256-bit DDR5 (830/830/5000 MHz).

Features:

• GPU: 2 x Radeon HD 6970 (Cayman)
• Memory: 2 x 2GB GDDR5 SDRAM in 16 chips on both sides of the PCB
• Interface: PCIe 2.1 x16
• GPU clock rate (ROPs/shaders): 830/880 MHz (standard)
• Memory clock rate, physical (effective): 1250 (5000) MHz (standard)
• Memory bus: 2 x 256-bit
• Stream processors: 2 x 1536
• Texture units: 2 x 96 (BLF/TLF/ANIS)
• ROP units: 2 x 32
• Dimensions: 330x100x33 mm
• Board color: black
• Display connectors: Dual-Link DVI, 4 x mini DisplayPort 1.2
• Multi-GPU mode: hardware CrossFireX

This card has two BIOS chips and a selector switch. One BIOS offers a regular mode, the other stores an overclocked profile. This should also help fix unsuccessful firmware upgrades. BIOS1 is selected by default.

This card has two 8-pin supplementary power connectors.

Each new DisplayPort 1.2 interface allows outputting signal to three monitors by means of a special hub (twelve monitors in total).

Maximum resolutions and frequencies:

• 240 Hz maximum refresh rate
• 2560 x 1600 @ 60Hz max. digital resolution
• 2048 x 1536 @ 85Hz max. VGA resolution

We thank AMD for the provided graphics card.

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