AMD is on course to releasing its latest "Southern Islands" GPU family,
and a fleet of desktop graphics card SKUs based on it, which will be led
by a new high-performance GPU, codenamed "Tahiti", which will make up
Radeon HD 7900 series; followed by performance GPU "Pitcairn", on which
HD 7800 series will be based; "Thames" and "Lombok" making up the rest
of the lineup. According to a report by DonanimHaber, HD 7970 (working
name) is expected to be competitive with (or outperform) GeForce GTX
580, and priced at US $499. The HD 7950 will be competitive with (again,
or outperform) GeForce GTX 570, being priced at US $399.
Things get interesting with Pitcairn, which is the successor of "Barts". This performance GPU is designed for sweet-spot SKUs, such as HD 7870 and HD 7850, which will be competitive with GeForce GTX 560 Ti / GTX 560, and priced at US $299 and $199, respectively. The Radeon HD 7670 will be particularly expensive, priced at US $179, followed by HD 7650 at $119. Further, it was reported that HD 7970 and HD 7950 will have a standard memory size of 3 GB.
source:http://www.techpowerup.com/156312/AMD-Radeon-HD-7000-Series-Single-GPU-Graphics-Card-Price-Points-Surface.html
Things get interesting with Pitcairn, which is the successor of "Barts". This performance GPU is designed for sweet-spot SKUs, such as HD 7870 and HD 7850, which will be competitive with GeForce GTX 560 Ti / GTX 560, and priced at US $299 and $199, respectively. The Radeon HD 7670 will be particularly expensive, priced at US $179, followed by HD 7650 at $119. Further, it was reported that HD 7970 and HD 7950 will have a standard memory size of 3 GB.
source:http://www.techpowerup.com/156312/AMD-Radeon-HD-7000-Series-Single-GPU-Graphics-Card-Price-Points-Surface.html