Introduction

It seemed for the longest time that ATI video cards were red-headed step child of the video card industry, that is until we began to see cards like HD4870, HD4870X, HD3870X2 to name just a few. Perhaps it was the partnership with AMD that made the difference or perhaps it just the result of having the right design team on board to finally make the recipe come out alright.

Shortly after claiming the fastest video card award ATI/AMD did something that had been overlooked previously by any manufacturer and that was introduce high-speed video cards to the mid-market range ($150.00 area) This is when we began to see cards such as the 4570 and 4570X2 come on the market and for once just about everyone could afford a decent video that is everyone except those that had to settle for the sub-$100 dollar video card crowd. Fear not because ATI/AMD had one more card left to play and that is the card we are reviewing today, the HD4770, this card is able to approach the speed of it big brother the 4870, while still cost less than one Franklin.

So come on along as we check out the new HD4770 video card from Sapphire Tech.

The new SAPPHIRE HD 4770 is the first card in its class to use GDDR5 memory and is based on the first ever GPU built in 40nm process technology. It uses the powerful graphics architectures from the ATI division of AMD, incorporating multi-purpose stream processing units and improved memory management architecture.

	GDDR5 memory
	DirectX® 10.1
	24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering
	Dual mode ATI CrossFireX™ multi-GPU support for highly scalable performance
	PCI Express® 2.0 support
	Dynamic geometry acceleration
	Game physics processing capability
	ATI Avivo™HD video and display technology
	Dynamic power management with ATI PowerPlay™ technology
	ATI Stream technology

ATI Radeon™ HD 4770 – Overview

A new paradigm of performance and price.

The ATI Radeon™ HD 4770 graphics processing unit (GPU) offers an unbeatable combination of HD gaming performance1 and price. Featuring the industry’s cutting-edge 40nm process technology and the most advanced GDDR5 memory technology, this GPU delivers seamless frame rates with incredible speed and processing power. Proof that high performance gaming and price can co-exist without compromise.

1 HD capable monitor required
2 ATI CrossFireX™ technology requires an ATI CrossFireX Ready motherboard, an ATI CrossFireX™ Bridge Interconnect and may require a specialized power supply.
3 Blu-ray drive required
4 The ATI Radeon™ HD 4770 GPU can upscale video display to 2560x1600 on dual-link monitors which is almost twice the display resolution of 1080p displays.

The product descriptions, features and performance results are for graphics cards based on AMD´s standard reference design for the ATI Radeon™ HD 4770 with GDDR5 memory. Third party manufacturers may modify these reference designs, which can result in product specifications, features and/or performance results different from those described in this document. Buyers should confirm exact specifications, features and performance of third party graphics cards before purchase.

ATI Radeon™ HD graphics chips have numerous features integrated into the processor itself (e.g., HDCP, HDMI, etc.). Third parties manufacturing products based on, or incorporating ATI Radeon HD graphics chips, may choose to enable some or all of these features. If a particular feature is important to you, please inquire of the manufacturer if a particular product supports this feature. In addition, some features or technologies may require you to purchase additional components in order to make full use of them (e.g. a Blu-Ray or HD-DVD drive, HDCP-ready monitor, etc.).