Wily, >How much die space is occupied by level II cache on
a) Coppermine w/256kbits
b) Xeon w/1 or 2Mbits
in mm^2 and % ?
What kind of memory cell is used -- is this SRAM?
I can answer one of those questions, and straighten out one storage unit of measure. For the second part, it's kilobytes, or megabytes (8 bits per byte) not KB or MB in this case. Individual DRAM or SRAM chips are usually spec'd in terms of megabits, like 256 Megabits per chip these days. But, storage systems or memory functions, like the RAM or hard drive in your computer, or L1 or L2 cache are spec'd in terms of bytes, kilo, mega or giga. The L2 cache is definitely SRAM (no refresh required). For your first and maybe most important Q, % of space of the L2s, I don't know. It is a LOT for the new Xeons, I know that. Maybe Elmer knows?
Tony |
