AMD last week launched its HD 4830 graphics card, a sub-$150 GPU with support for DirectX 10.1 instructions. With a budget price tag and impressive spec sheet, the HD 4830 has been positioned to compete with Nvidia's 9800 GT videocard, but some buyers may find that their HIS-branded HD 4830 isn't living up to expectations.
"AMD has identified that, in addition to reference samples of the ATI Radeon HD 4830 boards sent to media with a pre-production BIOS potentially impacting the card's performance, a very limited number of ATI Radeon HD 4830 boards were released to market with the same pre-production BIOS," AMD said in a statement . "This is no way hardware related, and an updated BIOS fully resolves the performance limitation."
Updating the BIOS doesn't perform any voodoo shenanigans on affected cards, and instead enables all 640 stream processors that the HD4830 is supposed to have. For whatever reason, a "small number of HIS-branded" cards sporting the pre-production BIOS only showed 560 stream processors as being enabled, resulting in an undue performance hit.
If you think you might own one of the gimped cards or simply want to verify that your videocard's running at full speed, download and run the GPU-Z utility .
Image Credit: HIS