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AMD Radeon HD 2900 XT - A Family Affair Part 2
The other five products all fall under the Mobility Radeon range, with the line up kicking off with the Mobility Radeon HD 2300. AMD has labelled the HD 2300 as the entry level mobile solution, and it’s easy to see why. First up, this is the only chip in the HD 2000 series line up that isn’t DX10 compatible – it’s limited to DX9c. Also, whereas every other Mobility Radeon product is based on a 65nm process, the HD 2300 is manufactured using a 90nm process.
The core frequency on the HD 2300 ranges from 450 – 480MHz, while the memory is clocked from 400 – 550MHz. The HD 2300 will be offered with both 64 and 128-bit memory interfaces, and despite its dated spec, it still sports the Unified Video Decoder for playback of Blu-ray and HD DVD movies.
The Mobility Radeon HD 2400 and 2400 XT represent the first real step forward in AMD’s mobile graphics solutions. These are 65nm parts that are fully DX10 compliant. The core clock ranges from 350 – 450MHz, depending on the variant. Memory is clocked at 400 – 500MHz, while the memory interface is limited to 64-bit.
AMD is aiming the Mobility Radeon HD 2400 series at thin and light notebooks, where power efficiency is as important as performance. AMD claims that the 65nm process will improve battery life by 25 per cent, which will definitely keep mobile users happy.
The Mobility Radeon 2600 addresses the mobile performance user, but not necessarily the gaming enthusiast. With a core clock ranging from 400 – 500MHz and memory clocked at 550 – 600MHz with either 64 or 128-bit interface, the MR HD 2600 doesn’t look like a massive step up from the HD 2400 XT.
The Mobility Radeon 2600 XT on the other hand, seems to be worthy of its gaming enthusiast target audience. Core clocks range from 600 – 700MHz, while memory speeds range from 700 – 750Mhz with a 64 or 128-bit interface. I should be getting a notebook with a Mobility Radeon 2600 series graphics solution in the lab soon, so check back for some comparative performance testing against a mobile GeForce 8600.