AMD Launches ATI Radeon 4770

A new mid-range contender emerges.

AMD is following the launch of its latest high-end chip, the AMD ATI Radeon 4890 with a graphics card more likely to be affordable the average gamer, the mid-range Radeon 4770. Arriving with a $99 (~£85) MSRP, the 4770 should offer nVidia’s (s)8800 GT(/s) (s)9800 GTX+(/s) GTS 250 some competition.

The RV740 core powering the 4770 is build on a 40nm manufacturing process, and so should offer improved performance-per-watt over the 55nm RV770 core powering the 4800-series. That core packs 128 shader units (640 stream processors) is clocked at 750MHz and pairs with 512MB of RAM running at an effective speed of 3.2GHz on a 128-bit interface. As a result, the 4770 offers 960 gigaFLOPs of computing power, not far off the 4830 Radeon 4850 which just broke through the teraflop mark.

Considering the market and price point the Radeon 4770 is targeting – and the cooler 40nm manufacturing process – the use of a dual-slot cooler is slightly odd. If it means the fan can fun slower and, importantly, quieter that could be a worthwhile trade-off.

Be sure to check back for our full review tomorrow.

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