Rambus, maker of RDRAM memory, will announce its Terabyte Bandwidth Initiative. This initiative will define a road map for technologies that will super charge bus transfers for multicored processors of the future.
For the past three years, Rambus has been laying the research groundwork for eventually answering a simple question: in a world with 100 cores on a single chip, how do you get enough data onto the chip to keep all those cores fed? At that point, a single system-on-chip (SoC) in a future game console may well need something on the order of a terabyte per second worth of bandwidth — some 20x the amount of bandwidth in today's PlayStation 3.
The crux of the new initiative lies in three key technologies:
- 32x data rate: 32 data transfers per clock cycles which would result in 1 TB/s bandwidth with 16 DRAMs at 500 MHz clock speed.
- FlexLink for command/address routing: The command and address lines would use the same 32x signaling making for simpler implementation.
- Fully Differential Memory Architecture: Use of differential signaling on the data, C/A and the clock lines.
Intel's terascale computing initiative also focuses on several issues that will emerge in the future with massively multicored system-on-chip models.
Rambus aims for a terabyte of bandwidth (Inquirer)
Rambus proposes Terabyte per second memory initiative (Tom's Hardware)