Diamond's Radeon HD 3870 1GB video card
http://techreport.com/articles.x/14654 [2008-7-3]
Tag : Nvidia VGA Card
What happens when you take a Radeon HD 3870 graphics card and slap a gig of memoryon it? That is the question of the hour, since our subject isDiamond's new card with just such a configuration. The Radeon HD3870 has established itself as a pretty decent option amongmid-range graphics cards, although it's squeezed by formidablecompetition from Nvidia. Could doubling up on video memory allowthe 3870 to distinguish itself from the likes of the GeForce 9600GT and GeForce 8800 GT? We decided to find out.
Diamond's novel facet
Diamond's new take on the Radeon HD 3870 doesn't depart tooradically from the established formula. The card comes with adefault GPU clock of 830MHz, well above the 775MHz baseline createdby AMD but not quite as high as some of the cards we tested in our mid-range roundup , which ranged as high as 850MHz. Similarly, the card's 1GB ofGDDR3 memory comes clocked at 870MHz, for an effective data rate of1740MT/s, on a 256-bit bus. The 512MB versions of the 3870generally come with GDDR4 memory and consequently feature clocks ashigh as 1.2GHz. Diamond's, er, ace is its larger memory size,coupled with the fact that GGDR3 memory tends to have lowerlatencies and thus perform better than GDDR4, clock for clock. Onthe flip side, GGDR4 tends to consume less power.
Incidentally, Diamond's official specs for this card claim an825MHz GPU clock and 900MHz memory. The card itself tells us it'sclocked at 830/870MHz. If you'll excuse us, we're going with thecard on this one.
What happens when you take a Radeon HD 3870 graphics card and slap a gig of memoryon it? That is the question of the hour, since our subject isDiamond's new card with just such a configuration. The Radeon HD3870 has established itself as a pretty decent option amongmid-range graphics cards, although it's squeezed by formidablecompetition from Nvidia. Could doubling up on video memory allowthe 3870 to distinguish itself from the likes of the GeForce 9600GT and GeForce 8800 GT? We decided to find out.
Diamond's novel facet
Diamond's new take on the Radeon HD 3870 doesn't depart tooradically from the established formula. The card comes with adefault GPU clock of 830MHz, well above the 775MHz baseline createdby AMD but not quite as high as some of the cards we tested in our mid-range roundup , which ranged as high as 850MHz. Similarly, the card's 1GB ofGDDR3 memory comes clocked at 870MHz, for an effective data rate of1740MT/s, on a 256-bit bus. The 512MB versions of the 3870generally come with GDDR4 memory and consequently feature clocks ashigh as 1.2GHz. Diamond's, er, ace is its larger memory size,coupled with the fact that GGDR3 memory tends to have lowerlatencies and thus perform better than GDDR4, clock for clock. Onthe flip side, GGDR4 tends to consume less power.
Incidentally, Diamond's official specs for this card claim an825MHz GPU clock and 900MHz memory. The card itself tells us it'sclocked at 830/870MHz. If you'll excuse us, we're going with thecard on this one.
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