formula for calculating 1/2 mulitpliers

Liquid3D · Post by **Liquid3D** » Sun May 08, 2005 2:03 pm

Hi all, I'm running some tests and due to my unfamiliarity with the A64 internal memory controller I ran a series of benchmarks on the 9.5x270FSB. The benchmarks came out pretty good, however I udnerstand their not "valid" due to the on-die MCH's inability to work with .5 values.

Does anyone know of, or where i can find the formula to translate such things as Bandwidth MB/s formula, and 3DMarks etc. into "real world" numbers?

infinitevalence · Post by **infinitevalence** » Sun May 08, 2005 2:41 pm

try this cool little utility

http://www.geocities.com/gtstrider/

Even better try this app out

link

Liquid3D · Post by **Liquid3D** » Sun May 08, 2005 3:15 pm

I think I've found the answer to my own question.

The AMD on-die memory controller round's up any .5 value. For example:

9.5 x 270MHz = 2565MHz to find the "Real HTT" you need to divide result by the next highest multipler. SO:

2565 / 10 = 256 and 270 - 256 = 14MHz this is the difference? Per this formula. Please let me know if I'm on the right track?

EDIT: THANKYOU SOOOOO MUCH! The tool looks great! I'm about to re-boot and give it a try. Luckily I only ran one set of benchmarks off the 9.5x out of a 7-kit round-up. With at least three different speed grades per kit I would have looked pretty silly. I knew something was wrong and my friend told me how asinine I was. Since I fried my Intel I had to re-aquaint myself with the A64's nuances, and already they have the Sandiego out, omph.