LostCircuits has put up a review on the Tyan Tachyon G9700 Pro
Standing out from the crowd of "Powered by ATI" manufacturers is Tyan, the only manufacturer whose cards are significantly deviating from the ATI reference design. In addition to presenting itself in "Royal Blue", the TACHYON also claims to be the fastest RADEON spawn, courtesy of its overclocking margin of up to 400 MHz core frequency. Another advertised feature is the built-in hardware monitor. We took the TACHYON G9700 Pro and gave it some heavy beating, pushing it beyond the 400 MHz mark which gave us up to 17 % performance boost over the default setting. We did find some "hot issues" as well, though, but we also found how to avoid them.Read more
