OverClocked ASUS Radeon HD 4770 TOP
ASUS is currently the only partner of AMD / ATI, who announced that the shoot on the market in the Radeon HD 4770 in a overclocked version. With Tweak Voltage, users can increase the voltage to 1.2V cards and timings up to 971MHz. Reference models have a 512MB card and the GDDR5 memory timings at 750MHz GPU memory speed of 3.2GHz. Final TOP manufactured by Asus will have the timings of 800MHz for the GPU and 3.4GHz memory.
Also of note is the technology used in Voltage Tweak Asus EAH4770 TOP, which allows you to increase the voltage from 0.95V to 1.2V. Then the card can achieve the timings for 971MHz GPU and 4600MHz memory.
Both cards will soon be available in stores. It is not yet known at what price.