XFX R7790 Black Edition Overclocked Reviewccokeman -
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XFX R7790 Black Edition Overclocked Testing:
Temperature testing will be accomplished by loading the video card to 100% using Unigine's Heaven Benchmark Version 4.0, with MSI's Afterburner overclocking utility for temperature monitoring. I will be using a resolution of 1920x1200 using 8xAA and a five-run sequence to run the test, ensuring that the maximum thermal threshold is reached. The fan speed will be left in the control of the driver package and video card's BIOS for the stock load test, with the fan moved to 100% to see the best possible cooling scenario for the overclocked load test. The idle test will involve a 20-minute cool-down, with the fan speeds left on automatic in the stock speed testing and bumped up to 100% when running overclocked.
- Monitoring with MSI Afterburner
- Unigine Heaven 4.0 1920x1080 8x AA
- 5-run sequence
- 20-minute idle duration
- Temperature measured in degrees Celsius
Comparing the cooling results from the Sapphire Dual-X and XFX Double Dissipation we see that at stock speeds Sapphire has a better control of the cooling performance curves. Cranking up the clock speeds and fan speeds on both cards shows just a two degree margin between the two solutions under load. Pushing the fan speed up to its maximum level helps cooling performance tremendously but usually comes with a consequence for those actions. Non-stock cooling solutions are not immune to this but XFX has put together a solution that, while audible, it is not overpoweringly loud when buttoned up inside the chassis.