We have known that AMD will officially release three entry-level graphics cards—— Radeon HD 6450/6570/6670 on April 19th.And recently Donanimhaber exposeed the performance of Radeon HD 6570/6670.According to the test result,the two graphics card features better performance than GeForce
GT 440.

According to the source,the tested graphics card include Radeon HD 6670/6570(1GB GDDR5 memory),Radeon HD 6570(512MB GDDR5 memory) and GeForce GT 440(1GB GDDR5 memory).All the graphics cards were set with reference frequencies,finally they compared their scores of 3DMark Vantage and 3DMark 11 each other.

As the test result showed,3DMark scores of the three AMD Radeon HD 6670/6570 graphics cards were all better than GeForce GT 440.Now the key point is their price.It seems that if the price of Radeon HD 6670/6570 is close to or even lower than that of GeForce GT 440,it would be not a difficult thing to defeat the rival completely.