AMD has a brand-new Radeon to unveil today, and it's certainly worthy of our attention. However, Damage Labs is humming away with the sound of a great many things being tested right about now, so our time to devote to this new graphics card is limited. We'll be in and out of our look at the Radeon HD 4830 in no time, faster and cleaner than a celebrity marriage
this new card is indeed called the Radeon HD 4830. The name tells you almost everything you need to know about this product, which would appear to be the last piece of AMD's 4000-series Radeon lineup to fall into place. Those of you who read our recent review of affordable graphics cards may recall that AMD didn't have much to offer between the (sensational for its price) Radeon HD 4670 at 80 bucks and the all-world Radeon HD 4850 at about $180. Well, that's where the 4830 comes in.
This new model is, like the 4850 and 4870, based on RV770 silicon, but in its tamest form yet. Yes, folks, the great product segmentation game continues with yet another chip having perfectly good—or possibly totally flawed—bits and pieces deactivated to maintain a neat separation between models. On the 4830, two of the RV770's 10 SIMD units have been disabled, reducing shader power (and likely performance) somewhat. Since those SIMD units are tied to texture management units, the GPU's TMU count has dropped proportionately. The end result: the Radeon HD 4830 has a total of 128 shader execution units—or 640 stream processors, in AMD parlance—and can filter up to 32 textures per clock.
this new card is indeed called the Radeon HD 4830. The name tells you almost everything you need to know about this product, which would appear to be the last piece of AMD's 4000-series Radeon lineup to fall into place. Those of you who read our recent review of affordable graphics cards may recall that AMD didn't have much to offer between the (sensational for its price) Radeon HD 4670 at 80 bucks and the all-world Radeon HD 4850 at about $180. Well, that's where the 4830 comes in.
This new model is, like the 4850 and 4870, based on RV770 silicon, but in its tamest form yet. Yes, folks, the great product segmentation game continues with yet another chip having perfectly good—or possibly totally flawed—bits and pieces deactivated to maintain a neat separation between models. On the 4830, two of the RV770's 10 SIMD units have been disabled, reducing shader power (and likely performance) somewhat. Since those SIMD units are tied to texture management units, the GPU's TMU count has dropped proportionately. The end result: the Radeon HD 4830 has a total of 128 shader execution units—or 640 stream processors, in AMD parlance—and can filter up to 32 textures per clock.
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