Enter Gigabyte and the GVR587SO-1GD videocard,  which increases the Radeon HD 5870's core clockspeed from 850MHz to 950MHz, increasing the effective frequency of its GDDR5 memory from 4.8GHz up to 5GHz. This beauty of a videocard uses a custom dual-fan heatsink   design for better cooling and takes advantage of Gigabyte's Ultra Durable VGA+ manufacturing techniques.