Flash Course in PC Arch
Chip
- A 256bit chip operating on a 350MHz clock
- The clock means that every 1/3.50E8 seconds (2.86 nanoseconds), an operation is being performed on "something". The fact that its a 256bit chip means that "something" is 32bytes of data.
Memory
- 256bit memory interface running 500Mhz(1000DDR)
- Like the chip, the 256bit part means that the memory read/writes are done 32K at a type and since there is synchronization with the chip there isnt a massive bottleneck between the chip and the mem controller (i.e., GFX5800). With conventional memory, an operation (read/write) is performed (typically) on a rising edge of a clock pulse (clock = the 500Mhz number). Since this is DDR memory (or a variant of), it means that activities can also occur on the falling clock pulse (and since there is one falling pulse for every rising pulse....) hence DDR = twice the operations. So, at the end of the day the number you'll be concerened with is 1000MHz.