Along with the latest GPU technologies that include a 40nm manufacturing process, DirectX 10.1 graphics capabilities, support for HDMI 1.3, CrossFireX, and Stream technology, the ASUS EAH4770 Series is evidence that high performance gaming and affordability can co-exist without compromise.

Equipped with Voltage Tweak technology and the SmartDoctor application, the ASUS EAH4770 TOP/HTDI/512MD5 raises GPU voltages from 0.95V to 1.2V, boosting GPU and memory clock frequencies from 800MHz to 971MHz and 3400MHz to 4600MHz respectively.
The ASUS SmartDoctor is an industry-leading overclocking utility that works in tandem with Voltage Tweak technology to enable users to manually adjust the GPU voltage on the EAH4770 Series. With just a few simple clicks, users will be able to enjoy astounding voltage boosts and performance upgrades - all without the hassle of re-flashing the BIOS at the risk of damaging the cards, or groping blindly for a overclocking button at the back of the chassis.

The EAH4770 Series also incorporates ATI Stream technology, which utilizes the massive parallel processing power of AMD graphics processors to deliver new capabilities that go beyond the traditional usage scenarios of graphics rendering and video processing.

Model	EAH4770 TOP/HTDI/512MD5	EAH4770/HTDI/512MD5
Graphics Engine	ATI Radeon HD 4770 graphics
Video Memory	512MB GDDR5
Engine Clock	800MHz	750MHz
Memory Clock	3.4GHz (850MHz GDDR5)	3.2GHz (800MHz GDDR5)
Memory Interface	128 bit
DVI Max. Resolution	2560 x 1600
Bus Standard	PCI Express 2.0
DVI Output	Dual DVI-I (Dual Link)
HDCP compliant	YES
HDTV Out	YES
HDMI Output	YES, via DVI-to-HDMI adaptor
D-Sub Output	YES, via DVI-to-Dsub adaptor
Software Bundled	ASUS Utilities and driver