AMD's ATI Radeon HD 4830 512M 9

AMD's ATI Radeon HD 4830 512M

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Today AMD released their new Radeon HD 4830 Series of graphics cards. The cards are positioned in the $100 to $150 segment to put additional pressure on NVIDIA.

Compared to the bigger brother, the HD 4850, AMD reduced the number of shaders from 800 to 640. The number of texture units is also lower with 32 instead of 40. Last but not least, the clock frequencies were reduced to 575 MHz core and 900 MHz memory as well.

PowerColor's Radeon HD 4830 has the exact same specifications as the AMD reference design but comes with a PCB designed by PowerColor (probably for cost reasons) and a dual slot cooler (for lower temperatures). Also included is a native HDMI output which emphasizes the potential use as a media PC card. While the exact price is not known yet for the Powercolor variant, expect it to be about $10 to $15 cheaper than the AMD reference design.

PLEASE NOTE: There is an issue with the HD 4830 sample from AMD. It has only 560 shaders instead of the intended 640. That's why the scores of the AMD card are so different. The card tested in this review has 80 missing shaders and does not represent intended HD 4830 performance. Read more about this here.

HD 4350
9400 GT
HD 4550
9500 GT
HD 4670
HD 3850
HD 3870
9600 GT
HD 4830
8800 GT
9800 GT
HD 4850
Shader units 8016803232032032064640112112800
Transistors242M314M242M314M512M666M 666M505M 956M754M754M 956M
Memory Size256 MB512M512 MB256 MB /
512 MB
512 MB256 MB 512 MB 512 MB 512 MB 512 MB 512 MB 512 MB
Memory Bus Width 64 bit128 bit64 bit128 bit128 bit256 bit 256 bit 256 bit 256 bit 256 bit 256 bit 256 bit
Core Clock600 MHz550 MHz600 MHz550 MHz750 MHz670 MHz 777 MHz 650 MHz 575 MHz 600 MHz 600 MHz 625 MHz
Memory Clock500 MHz400 MHz800 MHz900 MHz1000 MHz828 MHz 1126 MHz 900 MHz 900 MHz 900 MHz 900 MHz 993 MHz
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