title: Is a Gigatexel equal to a billion chars, or a billion floats?
body: <p>I'm looking at <a href="http://www.geforce.com/Active/en_US/en_US/pdf/GeForce-GTX-680-Whitepaper-FINAL.pdf" rel="nofollow">NVIDIA's whitepaper on the GTX680 GPU</a>. On page 6, the whitepaper mentions that GTX680 has a fill rate of 128.8 Gigatexels/sec.</p>
  
  <p>I have a couple of questions about this: </p>
  
  <ol>
  <li><p>Is one texel equal to <em>one byte</em>, or <em>four bytes</em>? In other words, is a texel an RGBA (or float), or just a char?</p></li>
  <li><p>Is "<strong>fill rate</strong> of 128.8 Gigatexels/sec" the same thing as saying "<strong>bandwidth</strong> of 128.8 GB/s?"</p></li>
  </ol>