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ATI Radeon 9100 IGP 'RS300' Chipset Preview

ATI Radeon 9100 IGP 'RS300' Chipset Preview  - PCSTATS
Abstract: While its first generation was somewhat uninspiring, the new 'RS300' Radeon 9100 IGP promises to offer something more - at least to prospective Pentium 4 owners.
Filed under: Chipset Published:  Author: 
External Mfg. Website: ATI Aug 27 2003   Chris Angelini  
Home > Reviews > Chipset > ATI 9100 IGP

The IXP250 Southbridge

Intel has its ICH family, NVIDIA uses the MCP naming convention, and VIA sticks to the traditional south bridge nomenclature. ATI's 'southbridge' equivalent is called an IXP, the I/O communications processor responsible for interfacing with peripherals.

Its top-end offering, the IXP 250, is capable enough, but it lacks some of the nifty features found on competing products.

For instance, whereas the IXP 250 supports six USB 2.0 ports, Intel's ICH5 boasts eight. Furthermore, Intel offers gigabit Ethernet through the CSA architecture. ATI, on the other hand, has an integrated 3Com controller that tops out at 10/100 speeds.

While ATI facilitates six-channel audio through an AC'97 codec, it is in no way as advanced as NVIDIA's MCP-T (Soundstorm) and its Dolby Digital encoding capability. Finally, the IXP's most glaring weakness is a lack of Serial ATA support, something both Intel and VIA have already added to their respective arsenals. It does support Ultra ATA-100 drives however.

Motherboard manufacturers looking to supercede the IXP 250's capabilities have the option to connect a third party south bridge via the PCI bus. Unfortunately, communication is limited to 133MB per second this way, compared to ATI's proprietary 266MB per second A-link bus.

According to Phil Eisler, vice president and general manager of ATI's integrated and mobile business unit, the IXP is scheduled to be revised later this year. I would expect to see native Serial ATA support and additional USB 2.0 connectivity brought on board by that time.

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Contents of Article: ATI 9100 IGP
 Pg 1.  ATI Radeon 9100 IGP 'RS300' Chipset Preview
 Pg 2.  The RADEON 9100 IGP
 Pg 3.  — The IXP250 Southbridge
 Pg 4.  System Spec's and Benchmarks
 Pg 5.  Benchmarks: PCMark2002, 3DMark2001
 Pg 6.  Benchmarks: 3DMark03, UT2003
 Pg 7.  In Retrospect

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   12 / 13 / 2018 | 8:59AM
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