- Cutting Edge Technology
- Largest bandwith
- For 820, 840 & 850 Chipset
- For Pentium 4
- Lifetime Warranty
- Aka: RIMM or RDRAM
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The
high-speed clock rate enables an effective data rate of 800 Mbits per
second ( 2 bits of data are transferred per each clock cycle, data is
transferred at the leading and the trailing edge of the clock.) Since
the Rambus Channel is 16 bit wide [ 2 bytes], the resulting data
transfer rate is up to 1.6 GBytes per second per channel (2 x 800MB/sec
= 1.6GB). There are Intel platforms that use more than one channel in
the architecture. The new 820 and 840 Intel motherboards will support
Rambus memory. The 840 is for higher-end Workstations and the 820 is for
standard desktops. Rambus will ONLY work in these type of special
motherboards designed for Rambus memory. The 820 board supports Pentium
III and Pentium II processors. It has new, faster 133 MHz system bus;
Rambus RDRAM memory for twice the bandwidth of SDRAM; improved 3D
graphics with AGP4x, and UDMA/66 support for faster drive access. The
840 motherboard will support different workstation configurations: dual
or single processor, 133MHz or 100MHz system bus, PC600 or PC800 RDRAM
memory, AGP 4x or AGP Pro 50 graphics. The 840 chipset supports two
Rambus Channels for peak memory bandwidth of 3.2 GB/second. The 820 has
two memory connector slots. The 840 board has four memory slots . It's
what is called "dual channel" which means each channel has two
slots.
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