BeHardware reports Gigabyte showed off an upcoming Radeon HD 5870 graphics card at CES 2010, this new overclocked model will deliver a core clockspeed of 1GHz.
While the cooling system is similar, it isn’t completely identical on the Radeon HD 5850 Overclock as on the two Radeon HD 5870s: the Ultra Durable and Super Overclock have an extra heatpipe. We don’t yet know the clocks for the first two of these but the Radeon HD 5870 Super Overclock will be clocked at 1000 MHz (GPU) and 1300 MHz (GDDR5). In comparison with the stock model clocked at 850/1200 MHz, this corresponds to a 17% increase. The 8% increase in bandwidth is more modest.