Checking out the Sapphire HD 7790 Dual-X OC you can see it's of course a dual fan card as you'd expect by the model name. Overall, though, it's a good looking card with the black and silver setup. What we really love, though, is the matte black PCB which would go fantastic with a matte black GIGABYTE motherboard. As for the heatsink setup you can see it's pretty strong with the copper heatpipes running through the middle to pull hot air away from the GPU.
Moving across the top you can see just a single 6-pin PCIe power connector is needed for power while closer to the front we have just a single CrossFire connector giving us the ability to run two of these cards in CrossFire.
Looking at the connectivity side of things you can see two DVI ports alongside a HDMI and full size DisplayPort connector. You can see a small vent setup, but nothing too major due to the larger amount of connectors that are offered here.
Getting onto the specification side of things we can see some of the main specs below. We'll cover it in a bit more detail here, though, as we look at some of the other key areas. Compared to the HD 7770 we see an increase in stream processors from 640 to 896. At stock both cards carry with it a default 1000MHz core clock and 1GB of GDDR5 on a 128-bit memory bus remains the same. Due to an increase in memory speed, though, the memory bandwidth has increased from up from 72GB/s to 96GB/s. Average power draw on the model has also slightly increased from 80w to 85w.
Looking above you can see that Sapphire has got the core coming in at 1075MHz which is 75MHz up on the reference speed. The 1GB of GDDR5 has been increased from the default 6000MHz QDR to 6400MHz QDR, as you can see above.
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