VC-RAM
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[edit] VC-RAM
Virtual Channel Random Access Memory or VC-RAM was a proprietary type of SD-RAM produced by NEC. The only motherboards ever able to support VC-RAM were for AMD K7 and Intel Pentium 3 processors. A VC-RAM module is physically similar to a SDRAM memory module therefor VC-RAM capable motherboards are also able to use standard SD-RAM, but not both of them mixed together.
VC-RAM is faster than SD-RAM because it has significantly lower latencies. The technology could have become the competitor of Rambus or RDRAM because VC-RAM wasn't nearly as expensive as RD-RAM was, even so the technology never had widespread adaptation. Instead, Dual Data Rate (DDR) ram became the succesor of SD-RAM.
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