It looks like there won't be any GDDR3 version of RV740, ATI's first 40nm card. PowerColor has already told us that it plans to launch Radeon HD 4730 card clocked at 700Mz core and with GDDR5 memory. It is not clear at this point, but 4730 might be even based on 55nm RV770LE chip.

The memory will run at 3600MHz and matched with 128-bit interface, it should provide just about enough bandwidth. The card should be available at the end of May and AMD wants to attack Geforce 9600GT 512MB market.

The card should sell for $79 at launch, or $20 less than Radeon HD 4770, and we assume that it should not be that much slower. The cooler on the card comes from Arctic cooling, but we don't really know which one they've chosen.