Ati Radeon HD 5770 vs Ati Radeon HD 4770

[Zindin]

In terms of product strategy, the arrival of the Radeon HD 4770 leaves us perplexed. For INR 9000, the card offers superior performance to a Radeon HD 4830 when it had just teasing the Radeon HD 4850 sold approximately Rs 10000 , in its 512 MB and just 4% faster. Indeed, AMD seems to make the graphics card market down, something that the consumer is not necessarily a bad thing, especially given the price / performance ratio of the Radeon HD 4770,every thing that i read here AMD Radeon HD 4770 is fine but what with Ati Radeon HD 5770 what one will consider ?

[Birdie]

The cooling system is implemented by the ATI Radeon HD 5770 and operation of the other two Radeon HD 5800 series the values detected are idle and for full load slightly higher. The profile of the dynamic management of the cooling fan used with this card from ATI has resulted in a good blend of quiet operation and temperature of the GPU keep low.

[Archibald]

If you compare directly the Radeon HD 4770 and Radeon HD 5770 this architecture position for market segments are very close, based on production technology to 40 nanometers. i find the Radeon HD 4770 GPU RV740 with 640 stream processors at 750 MHz clock, while the solution for the Radeon HD 5770 GPU RV840 integrates 800 stream processors with clock frequency of 850 MHz

[David23]

Significant differences also with regarding to the video memory, if both are forms of GDDR5 with a 128bit bus width, the Radeon HD 5770 has clock rate increased by 50% (from 3,200 MHz to 4,800 MHz effective real) with a direct reflection on the maximum bandwidth available. With the Radeon HD 5770, then, AMD introduces an architecture that has 25% more stream processors, in addition to operating a clock rate higher than 13%, combined with a memory capable of higher maximum value of bandwidth 50%.