In most benchmarks, SiS' 655TX was able to outperform VIA's PT880 and its predecessor 655FX. Assuming the lead in the odd category is VIA's PT880 chipset, which will grace the first boards mid December.

Intel's 875P remains an outstanding yet very pricey option. Its biggest advantages lie in the manufacturer's solid reputation and its integrated CSA network interface. SiS' 655TX is a lot cheaper and offers the bottom-line best price/performance ratio in our comparison. This is mostly due to the optimizations that SiS is touting under the HyperStreaming label, as its memory performance lags behind that of Via's PT880. That in turn, however, means that the VIA is better suited for processing graphics.

On the whole, Gigabyte 8S655TX Ultra produced a very good impression: good package bundle, very wide expansion options and high performance level. But there is a number of flaws to do with unstable operation at low timings and asynchronous modes. Besides, I really didn't like the scanty system monitoring section as well as a complete lack of overclocking potentials. In fact the latter relates to only a small number of users.

Lack of overclocking potentials.