Sapphire Radeon HD 4670 GDDR4 512MB video card

On the one hand you have the reference clocked but passively, silently cooled Radeon HD 4670 Ultimate Edition, and on the other you have the subject of today's review, the Radeon HD 4670 GDDR4.

As the card's name should suggest, this part does away with the 512MB of GDDR3 memory used by reference boards in favour of the same quantity of GDDR4 modules, which in turn gives this particular part a slightly higher memory clock speed.

On top of this, Sapphire have thrown AMD's reference cooler in the bin, replacing it with a custom solution that promises to be both more efficient and much, much quieter.

Read the rest of the article here.