iXBT Labs - Computer Hardware in Detail






AMD Radeon HD 6790 Graphics Card

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AMD Radeon HD 6790
  • GPU: Radeon HD 6790 (Barts)
  • Interface: PCIe x16 2.1
  • GPU clock rate (ROPs/shaders): 840/840 MHz (standard)
  • Memory clock rate, physical (effective): 1050 (4200) MHz (standard)
  • Bus: 256-bit
  • Stream processors: 800
  • TMUs: 40 (BLF/TLF/ANIS)
  • ROPs: 16
  • Size: 210x100x33 mm
  • PCB color: black
  • RAMDACs/TDMS: integrated into GPU
  • Outputs: 2 x Dual-Link DVI, HDMI, 2 x mini DisplayPort 1.2
  • Multi-GPU mode: hardware CrossFireX

Comparison with the reference design, front view
AMD Radeon HD 6790 Reference AMD Radeon HD 6850

Comparison with the reference design, rear view
AMD Radeon HD 6790 Reference AMD Radeon HD 6850

The card has two 6-pin supplementary power connectors.

Maximum resolutions and frequencies:

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


AMD Radeon HD 6790

The cooling system is similar to that of Radeon HD 6850. Despite the copper baseplate, the heatsink is rather compact. The cooler is quiet, so the core temperature shouldn't be high.

Traditionally, we monitored temperatures using EVGA Precision (based on RivaTuner).

Such a massive cooler did well, and the core temperature only reached 66°C after 8 hours of non-stop operation.

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