bus Ram and bus motherboard

October 9, 2009 at 18:35:45
Specs: Windows XP
Hi all
I'm considering buying a laptop, i saw some specs of some Dell and Acer model
I found that some model with the motherboard's bus 800, Ram'bus 800 or 800:667 or 1066:1066
Can you guys tell me what it really is, it is better to buy one with the same bus?
And one more thing, i prefer a laptop having durability, what should i choose between the two above?

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October 9, 2009 at 19:33:19
Rambus is a memory type made under patents by a company called rambus. Well, it really rocked! Trouble is they didn't want to sell it cheap and the other guys were selling 300 MHz ram when they were selling 1000mhz. So the others tried to sue them out of business. Anyway it still rocks and only now has it been surpassed.

I never heard of a laptop using it. It is still rare and expensive. Might find it online auction places since it is hard to sell also.

Rambus is used in pairs. You can normally mix any speed pair with another pair but it will default to lowest speed.

Ram at 1066mhz is still fast but I'd suspect the processors you have will be in the 1.8G range.at best.

Playing to the angels
Les Paul (1915-2009)

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October 9, 2009 at 21:17:25
You need to understand the the difference between advertised bus speeds & the true frequency. Intel quad-pumps the CPU FSB, but the RAM bus is only double pumped. So using your examples:

800:667 = 200MHz freq : 333MHz freq

1066:1066MHz = 266MHz freq : 533MHz freq

So you can see in both cases the RAM frequency is actually faster than the CPU frequency.

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October 11, 2009 at 15:47:56
Rambus used both the up and down portions of the clock cycle so it really was 800.

I can safely say that we has Dells running photoshop. I don't care who did what tests. Every rambus system would work simply smoke the largest of files until the ram limit and photoshop had to go back to scratch disks.

Playing to the angels
Les Paul (1915-2009)

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Related Solutions

October 11, 2009 at 15:51:45

I read the original question to mean the RAM bus speed, not RAMBUS memory. I could be wrong but I don't think any laptops ever came with RAMBUS memory.

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