ATI Radeon 6 series vs. 5 series vs. 4 series
When you want to purchase a new graphics card, you consider a lot of factors such as engine and memory clock, memory type, memory bandwidth, 128 or 256 bit, etc. After considering all these, if you choose to buy an ATI, as they provide performance at low cost, you stuck on the final leg of the decision making – whether HD5670 or HD6670? In Bangladesh customers would prefer 5670. The performance does not vary so much, and it’s hardly noticeable. Both the cards are support DirectX11. However, with the 6 series, you do get the updated product driver. Therefore, more games are compatible and latest software’s are available. Moreover, you do get the pride of owning a 6 series card.
If you are planning to save a few bucks, you can also find second hand HD4670 or 4850 cards. The driver is back dated and there is no pride in using an old card. However, if you do buy one, it would be money well spent. There is not much of a hardware difference with 4670 and 5670, except some minor factors and off course, the driver. You can run games on a 40” LED TV with a HD4950, but obviously sacrificing the glitter and glam of DX11.
If you are considering to buy an ATI card with a budget below 10k, I would suggest you to buy a 1GB DDR5 HD6670 at 9500/-. At 5800/- you will get a HD5570. No need to buy a 6570, as both come with DDR3 but the 6 series costs a grand more.
(Disclaimer: Prices stated are market estimates and approximate figure.)