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Supporting a maximum resolution of 2048x1536, the X1250 can easily run any typical CRT at its maximum resolution. Let's take a look at the features we can expect in these areas. This hardware will mostly be used for 2D and video applications. Looking beyond the architecture, most people who will actually be using integrated graphics won't be bothered with games or high-end 3D applications. This may end up being different depending on implementation, but we will stick with the 256MB recommendation for now. For our tests, we found 256MB to be the sweet spot, as performance was not any different with 512MB of graphics memory, especially under Vista where the base memory requirements are significantly higher than XP. AMD uses an optimized unified memory architecture (UMA) design, and all graphics memory is shared with system memory. The core clock speed operates at 400MHz and is not adjustable in current configurations.Īs for memory, the GPU can handle up to 512MB of memory, but support is once again dependent on the BIOS. All vertex shader operations are handled by the CPU. An even bigger change when compared to the X700 is that the number of vertex shader units has gone from six to zero.
ATI RADEON X1250 DRIVER VISTA SERIES
The X1250 weighs in at four pixel shaders and like other R4x0 series hardware this also means 4 texture units, z-samples, and pixels per clock. Unfortunately, with this improvement comes some sacrifice, as the number of pipelines on the X1250 is cut down from the X700. Many AVIVO features (including 10-bit per component processing) have been implemented on X1250, bringing higher quality video decoding to integrated graphics. While we would love to see Shader Model 3.0 support (which current Intel hardware claims to be capable of in XP with the latest drivers), developers writing DX9 apps will still be designing for the SM2.0 target which the X1250 meets. The basic design for the X1250 is taken from the X700, with some modifications. Lower transistor count means smaller die size and lower cost, and the R4x0 series fits the bill with its lack of SM3.0 support and use of 24-bit floating point precision. In the case of the X1250, it is no surprise that AMD has reached back to previous generation hardware for the base design of their new integrated GPU. The Radeon Xpress 1250 is directed towards the consumer market with a heavy emphasis on multimedia capabilities via the X1250 graphics core with AVIVO. AMD's - let's just say ATI's - original intent with this chipset is to provide an attractive alternative to the Intel G965 and now G33 family. The Radeon Xpress 1250 platform consists of an RS600 Northbridge and SB600 Southbridge.