AMD’s 790GX Chipset is All About Graphics

Posted: August 12, 2008 in Beware, Computer Related, From Me, Trivia
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Advanced Micro Devices has launched the 790GX chipset, with graphics that are improved enough that the company claims it offers two times the graphics performance of a comparable chipset from Intel.

The 790GX builds on the well-regarded AMD 780G chipset , according to Adam Kozak, the product manager for AMD’s chipsets, and the company describes it as a “crossover” product between the mainstream and high-end markets, taking attributes from both. It uses the same graphics core (a Radeon HD 3300) but clocked at 700MHz.

Motherboards with the new chipset are expected from Asus, ASRock, BioStar, DFI, Elitegroup, LTD, Foxconn, Gigabyte., LTD, J&W Technology, Jetway, LTD, and MSI Computer Ltd, AMD said.

Graphics-wise, AMD is positioning the new chipset against the P45 from Intel and the nForce 750a from Nvidia. AMD’s 790GX contains both HybridPower and CrossFireX capabilities, allowing the chipset to stand alone with its graphics capabilities, or else use one or more discrete graphics cards for additional graphics horsepower: running Codemasters’ Grid, for example, allows for 1024 x 768 graphics in low detail while using the onboard GPU, and then 1152 x864 at 30 fps while pairing it with a Radeon HD 3470. Two Radeon 4870s together generate 75 fps in 1920 x 1200 resolution, according to AMD.

The chipset includes AMD’s “OverDrive” capability, allowing a user to overclock the memory, as well as advanced clock calibration, a new feature that aggressively overclocks the associated Phenom processor.

Using the 3DMark Vantage benchmark, AMD claims a benchmark score of about 3000, versus about a 1400 score with the Intel G45 chipset.

The 790GX also processes video at resolutions of 1080p and above.

The chipset supports two x8 PCI Express lanes and a single X6 PCI Express lane. Six 3.0-Gbits/s connections are included, and 12 USB 2.0 ports via the SB750 south-bridge chip.

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