Graphics Cards Guide

PowerColor Devil 13 Radeon HD 7990 review

PowerColor Devil 13 Radeon HD 7990 - Speak of the Devil

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Overall rating 8.5/10
Performance:
8
Features:
8.5
Value:
8
THE GOOD
The only modern custom dual-GPU card on the market
Performance equals dual Radeon HD 7970
Effective triple-fan cooling system
Packaging and extra tools
THE BAD
Doesn't surpass NVIDIA GeForce GTX 690
High power consumption (on idle)
Very large and heavy
More Awards:
Best Gaming Rig


3DMark 11 & Unigine 2.1 "Heaven" Results

3DMark 11 Results

As always, we start with 3DMark 11, a synthetic benchmark designed to test a GPU's performance at various aspects of DirectX 11 such as tessellation and DirectCompute. Using its Standard BIOS setting, the Devil 13 was decent but was outperformed by the AMD Radeon HD 7970 CrossFireX setup, as well as both competitors from NVIDIA. 

On the OC setting, it fared better, showing a 4% increase on the Performance Preset and a 6% increase at Extreme, compared to the Standard BIOS. This put it past the HD 7970 CrossFireX setup, but still trailing NVIDIA, with the GTX 690 ahead by about 2-3% and the GTX 680 SLI config ahead by 7-8%.

As we expect gamers to have the OC BIOS setting turned on most of the time (if not indefinitely) we will be performing the rest of the benchmarks using just the OC BIOS settings.

 

Unigine 2.1 "Heaven" Results

The Devil 13 performed well in our next synthetic benchmark, which features a high level of advanced ambient occlusion and tessellation. The Devil 13 was best at the 1920 x 1200 resolution at 8x AA settings, outperforming the NVIDIA GTX 690 by 6% and even the GTX 680 SLI config by 2%. At the higher 2560 x 1600 resolution, the Devil 13 was still a decent performer, but wasn't able to keep up with the HD 7970 CrossFireX configuration, which scored a resounding 10% victory. Despite this, the Devil 13 still outperformed both competitors from NVIDIA.