Sapphire HD7770 1GHZ Overclock Edition Review

Yet another well endowed, 3D rendered lady on the front of the box, dressed in designer army gear with push up bra.

The Sapphire bundle is strong, featuring Crossfire cable, video cables and literature on the product, along with Sapphire Select membership.

The Sapphire HD7770 1GHZ OC edition is built around a blue PCB with black cooler and large centralised fan. Much better looking than the reference card.

The card demands a single 6 pin PCI e power connector for operation. It is Crossfire capable in a 2 way configuration only. If you want three way or four way Crossfire you need to aim higher up AMD’s product range. A little disappointing as three or four of these cards might make for an interesting, lower cost Crossfire configuration.

This HD7770 uses 1GB of GDDR5 Hynix H5GQ2H24MFR memory.

Sapphire have made their own cooler for this card, which comprises two thick copper heatpipes running into separate racks of aluminum fins on either side of the core. Much improved on the reference cooling solution.

The Sapphire HD7770 features the Cape Verde 28nm core, which runs at 1,150mhz on this card … 150mhz more than the ‘reference' design from AMD. The card features 16 ROPS, 640 Unified shaders, and 1GB of GDDR5 memory running at 1,250mhz via a 128bit memory interface.

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