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darál0w
Jómunkásember
válasz kukinyo #21037 üzenetére
HTT bus is a bidirectional bus. Current A64s support bus width of 16bit both ways.
16 bits x 1000MHz = 16 000 000 000 bit/s = 2000MB/s
Halving the bus width to 8bits (1000MB/s in/out) effectively halves the throughput, thus theoretically decreases the bandwidth board's MCP (southbridge) can offer to addon cards and integrated devices, meaning HDD, PCI, PCIe, etc.
BUT because HTT bus is already such a fast I/O bus, it's not likely even halving the width would make noticeable performance hit. Much like setting HTT multiplier from 5x (1GHz) to 1x (200MHz) does very little in terms of GFX performance.
Aki viszkető seggel fekszik, az büdös ujjal ébred... :]