ATI All-In-Wonder 2006 PCI Express Edition Review :: X1300 A-I-W Features

01-01-2006 · Category: Hardware - Video Cards

By Benjamin Sun
  • 0.09nm low-k process
  • 105 million transistors
  • DirectX 9.0c support
  • Pixel Shader 3.0
  • Vertex Shader 3.0
  • HDR
  • AVIVO
  • PCI Express x16
  • 256MB GDDR3
  • 450MHz Core Clock
  • 400MHz Memory Clock
  • 3Dc
  • Microtune 2121 Tuner
  • Multimedia Center 9.12

When ATI designed the X1K series they targeted the 0.09 nanometer low-k process from TSMC. Dave Orton mentioned in a conference call that they probably couldn't hit their targets for the x1800XT with the 0.11 nanometer process they used with previous generations of video cards. The X1300 has 105 million transistors, making it the first mainstream card with over 100 million transistors to be built. The previous mainstream card, the x600 pro had 56 million transistors, meaning the x1300 doubles the previous generation in transistor count.

The key features of the X1300 include full support for Microsoft's DirectX 9.0c API including Pixel and Vertex Shader 3.0. ATI calls their X1K series "Shader Model 3.0 done right." I won't go into the politics of that statement besides the fact that the X1300 has better performance than a 6200 or a 6200 with Turbo Cache in general and the architecture of the R5xx series has better overall dynamic branching performance, but the fact is NVIDIA released their SM 3.0 cards over a year before ATI released theirs.

HDR stands for High Dynamic Range lighting. The dynamic range is the ratio between the lightest and darkest part of the picture. A human eye can distinguish between a range of about 30,000 to 1. The problem is, today's computer monitors are based upon 8-bit per component color, giving a maximum range of 255:1. To compensate, game developers use HDR to give the effect of natural light. Games that use HDR include Splinter Cell: Pandora Tomorrow, Half Life 2 Lost Coast and others.

The X1300 has 4 pixel shader pipelines and a clock speed of 450MHz. This gives the A-I-W 2006 PCI Express Edition a theoretical fillrate of 1.8 Gigapixels a second. The A-I-W 2006 is based upon the X1300 standard edition with a slightly higher core clock speed. There are three models of X1300: the X1300, the X1300 with HyperMemory and the X1300 Pro. The X1300 with HyperMemory has a core speed of 400MHz and 32-bit memory interface to 500MHz memory. The X1300 has a core clock speed of 400MHz and 128-bit memory interface to 400MHz memory. The x1300 Pro has a clock speed of 600MHz and 128-bit memory interface to 450MHz.