We recently took a look at ATI's latest mainstream card, the Radeon 4830. Based on their RV770LE GPU, the chip is supposed to ship with 640 stream processors clocked at 575MHz. Unfortunately however some cards that were shipped to reviewers like myself left Canada with just 560 shaders enabled, 80 shaders short of the 640 the card is supposed to have. I just checked and the board I received for review is one of the affected cards with just 560 shaders.
As a result, I've taken down the 4830 review so I can go back and re-test the card. Once I've got the proper benchmark results, I'll re-post the review with the corrected graphs and rewrite the conclusion with the proper analysis of the corrected results. Obviously the new results will be faster than the numbers published in yesterday's article.
For those of you who may have purchased a 4830 card recently we've been told that retail cards shipping from ATI's board partners haven't been affected. The issue is limited to a select number of cards that ATI sent to some members of the press for review. If you'd like to check your card, the latest build of GPU-Z is designed to properly identify the Radeon 4830.