AMD's Opteron 250 vs. Intel's Xeon 3.6 GHz in a Workstation Duel of the Elite

Chipset Platform: AMD 8100 (A8151 + A8131/8132 + A8111), Continued

The A8111 controller is the I/O hub of the Opteron system.

Block diagram of the A8111 I/O hub.

The 8111 is comparable to the Southbridge of any desktop chipset. And here's why: the demand for bandwidth is also much lower. It won't come as a surprise, then, that this chip is connected by HyperTransport to the A8131 or the A8132 with only 8 bits and 200 MHz. This allows for 800 MB/s, i.e. enough for common applications.

Patrick Schmid
Editor-in-Chief (2005-2006)

Patrick Schmid was the editor-in-chief for Tom's Hardware from 2005 to 2006. He wrote numerous articles on a wide range of hardware topics, including storage, CPUs, and system builds.

  • bgd73
    hey thanks for this. There is errors in the test, especially in memory speed of xeons, in fact, it is ridiculous. I am going for older 7525 chipset in CEB motherboard...these machines are just getting started. I be sure to go for HT. thanks.
    Reply