Fiber-to-the-processor bandwidth scaling
Willamette (PIV) bus
- 400 MHz ´ 64b = 25.6 Gb/s (3.2 GB/s) peak data
- one quarter of the data bandwidth of a single 100GbE WDM optical fiber link
Future 10´ bus frequency
- 4 GHz ´ 64b = 256 Gb/s (32 GB/s) data
- less than three 100GbE WDM optical fibers
- Assume total 64 data and 56 address and status lines with 4 GHz clock gives 4 GHz ´ 120b = 480 Gb/s (60 GB/s)
- five 100GbE WDM optical fibers
Future scaled ring-based on 100GbE WDM interconnect
- 16 ´ 8-bit data-path implementation has network data-bandwidth of 16 ´ 8 ´ 10 Gb/s = 1280 Gb/s (160 GB/s)
- 13 100GbE WDM optical fiber links
- 4 rings use 64 100GbE WDM optical fiber links for a total data bandwidth of 5120 Gb/s (640 GB/s) which is 200 times greater than the PIV-bus data bandwidth