PC3200 Memory

[Maljonic]

Say if you have 1GB PC3200 184 pin 400MHz DDR DIMM, what does the 3200 bit pertain to?

 

[Draylor]

Its just the result of multiplying loads of basically unrelated numbers together to get a nice high marketing label. I CBA to google for the accurate answer, itll be there if you can be

Stripping out the bollocks PC3200 = 400MHz.

 

[Maljonic]

So the 400Mhz 512MB I have from six months ago is exactly the same, only half the size of course? Or what about 256MB from 2 years ago that runs at 400Mhz? Wont the older stuff slow the newer stuff down?

 

[Teren]

Nope

 

[Draylor]

2 year old PC3200, 6month old PC3200 and 'new' PC3200 will all be fine together - if thats what your question was, not sure Im understanding it properly.

 

[Clown]

I think he wants to know what the 3200 means. Maybe.

 

[Shovel]

2100 = 266Mhz DDR = 133Mhz bus
2800 = 333Mhz DDR
3200 = 400Mhz DDR

I hate the ‘xx00’ branding so much. It's the most fucking stupid case of swapping a techie meaningful number with a techie-sounding meaningless number. I always work in terms of ‘DDR333’ or ‘DDR400’.

I think the calculation is something to do with data transfer rate, but it bears no relationship to any specification on the motherboard. It just makes it harder for people to buy the right RAM.

Do marketeers get aroused by numbers in the thousands? Or do they just take pleasure knowing that it takes me longer to recite? On related note, if you ever here me talk about a ‘Geforce 78’, I'll be expecting you to add ‘00’ and associated syllables for yourself

 

[Maljonic]

Thanks everyone, just wondered what the 3200 meant - pretty much bugger all by the looks of it. It is confusing for poeple when you see all these pointless numbers on top of the 1GB 400Mhz etc, especially when some chips don't have the 3200 label on them, which makes you think it's something else when it isn't.

 

[xane]

http://en.wikipedia.org/wiki/DDR_SDRAM

 

[Maljonic]

Jesus, imagine if they stuck that lot up in computer stores - looks even more confusing. So is the 400Mhz not correct as I posted above? Going by the: PC-3200: DDR-SDRAM memory module specified to run at 200 MHz (not 400)using DDR-400 chips, 3.200 GByte/s bandwidth per channel...

 

[Ch3tan]

Its DDR- double data rate. So it's 200mhz * 2. So 400.

 

[Bonelamencer]

100Mhz*2(bidirectional)*2(double pumped)*64/8=3200mb/sec if you wanna know exectly the calculations.