Aww, look at this pretty baby I got in the mail just now.pic.twitter.com/IXUvqNMGyF
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5/ SGI started experimenting with the next generation of MIPS chips beyond the R5000, and they hit upon the R8000: A multi-chip solution with phenomenal floating-point performance. They released this as the "POWER Indigo 2" line. Same teal case, but a different CPU.
6/ This line did not last long, however. Educational institutions, in particular, quickly found that the POWER series of MIPS processors had some really gnarly floating-point bugs despite the performance. This can be confirmed by looking up contemporary posts on Usenet.
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7/ Lastly, once SGI finally found a workable 64-bit architecture in the MIPS R10000 series, they released the "Indigo 2 IMPACT" line, in its notably different purple/mauve-themed case. It supported a much different line of graphics cards, to boot.
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8/ The Indigo 2 IMPACT line supported, broadly, three graphics options: Solid IMPACT (SI), High IMPACT (SI), and Maximum IMPACT (MXI). High IMPACT AA is omitted for brevity. SI lacked texture acceleration, HI had it as an option, and MXI had texture acceleration standard.
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