Confused about calculating RAM speed

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1

If the formula for calculate the data rate of DDR3 SDRAM is - 

Memory bus clock rate - x

Bus clock multiplier of DDR3 - 4

Dual Rate - 2

Lane Width - 64

Bits per byte - 8

x*4*2*64*/8

or x*64

So if (according to speccy) my base memory bus clock rate is 805MHz wouldn't my memory speed be 805MHz*64?

Aka 32512 MHz or 32.5GHz?

Something isn't right here.

Can someone please tell me where I went wrong?

 

2

805MHz + 805MHz = your rams speed (DDR double data rate)

3

Okay, well that answers that question but brings up another. What about that calculation? Did I simply start with the wrong memory clock?

4

http://www.hardwaresecrets.com/article/Understanding-RAM-Timings/26