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DIAMOND 7990PE56G Radeon HD 7990 6GB 384-Bit x2 GDDR5 PCI Express 3.0 x16 CrossFireX Support Video Card

  • 4096 (2048 x 2) Stream Processors
  • 6GB 384-Bit x2 GDDR5
  • PCI Express 3.0 x16
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Born to outperform, the DIAMOND 7990PE56G VGA card transforms your gaming with destroying graphics power. Powered by dual class-leading AMD Radeon HD 7970 engines, this card tackles your most demanding HD titles with monstrous performance from 2048 x 2 Stream Processors, and total of 6GB 384-bit x 2 GDDR5 memory. Your games cease to be the same with redefined realism and a skip-free experience, even at the highest settings. An array of AMD graphics technology – including AMD Eyefinity, AMD HD 3D and AMD PowerTune – offers you more than one way to elevate your gaming experience.

  • newegg Microsoft DirectX 11 Get amazing eye-definition graphics with DirectX 11 technology. DirectX 11 is the very latest in high-speed, high-fidelity gaming and computing. Featuring technologies like Compute Shaders, Direct2D, Multi-threaded Rendering and Tessellation, DirectX 11 can enable not only more visually stunning games, but also significant performance improvements in some of your favorite websites and everyday applications.
  • newegg Eyefinity The next generation of AMD Eyefinity technology features all-new support for stereo 3D, universal bezel compensation, and brand-new display configurations, bringing you ultimate panoramic computing experience.
  • newegg AMD HD3D Technology AMD HD3D Technology is supported by an advanced and open ecosystem that, in conjunction with specific AMD hardware and software technologies, enables 3D display capabilities for many PC applications and experiences.
  • newegg Refined AMD PowerTune Technology Designed with the most advanced power management features, the AMD Radeon HD graphics card is equipped with the intelligence to convert unused power headroom into extra performance. It dynamically controls clock speeds, allowing gamers advanced performance inside the power envelope they specify.
  • newegg AMD PowerPlay and AMD ZeroCore Technology AMD PowerPlay power management technology automatically manages power consumption according to the actual GPU loading. AMD ZeroCore Power technology enables lower idle power than any other currently available graphics card. With support for AMD CrossFire technology, AMD ZeroCore Power eliminates wasted power, as well as additional heat and noise, from extra cards when you're not using them.
  • newegg AMD App Acceleration Powered by a set of innovative hardware and software technologies working in concert behind the scenes, AMD App Acceleration gives you enhanced speed and performance beyond traditional graphics and video processing.

Learn more about the Diamond Multimedia 7990PE56G

Quick Info


  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years

Customer Reviews of the Diamond Multimedia 7990PE56G

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  • Don J.
  • 6/16/2013 7:08:44 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsHappy With The Radeon 7990s

Pros: The OEM cooling fans are very quiet. Even under full load they make a lot less noise than my old video cards did under air cooling. Very fast cards that can hold their own against the competition: they can handle all of my games at the highest settings (1920x1200 display) while delivering smooth play. No "slide show." Metro Last Light is beautiful with these cards in CrossFireX.

Cons: I'm running two of these in CrossFireX (4 GPUs). Several games and synthetic benchmarks are slower (frame rate wise) than one 7990 (with CrossFireX disabled). This can be the drivers and/or the applications. However, most applications and benchmarks are faster with 4 GPUs, so this isn't really much of a "con."

Other Thoughts: Overall, I am happy with these cards. They shred any task given to them. They are certainly many times faster than the old 4870x2s I replaced them with. :) I'm running them water-cooled now at 1100 MHz and they haven't hiccupped. They appears to be a lot more overclocking headroom available with water cooling. The EK water blocks I'm using are excellent BTW. I'll be upgrading the rest of my system when the Ivy Bridge-E CPUs are released this fall.

4 out of 4 people found this review helpful. Did you? Yes No

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