What's the difference?

[Guest]

I am not very much of a hardware buff, so if you could keep it very simple for me, I'd appreciate that.

Basically, I want to know what the difference in RAM is. There's PC133, and PC2100, and DDR, and SDRAM. I get confused . Can someone tell me about the different kinds and then compare them for me?

 

[Toejam31]

<A HREF="http://www.tomshardware.com/mainboard/98q4/981024/index.html" target="_new">http://www.tomshardware.com/mainboard/98q4/981024/index.html</A>

This oughta help clear up the confusion.

Here's another, just for fun.

<A HREF="http://www.review-zone.com/hardware/memory/ram_guide/Page1.html" target="_new">http://www.review-zone.com/hardware/memory/ram_guide/Page1.html</A>

Toejam31

<font color=purple>My Rig:</font color=purple> <A HREF="http://www.anandtech.com/mysystemrig.html?rigid=6847" target="_new">http://www.anandtech.com/mysystemrig.html?rigid=6847</A>

 

[ejsmith2]

If you're looking for the technical aspects of the two types, the above post is a really good start. If you're looking to buy a system, and wondering which one is worth the money, it's tough to say. Everything I've ever read and seen benchmarks for tells me the difference is statistically insignificant (<5%). Either the processor or the mainboard chipsets can't take advantage of all that so-fis-ti-cation yet. So on Unreal Tourney, you'll get 31.5fps instead of 30fps, if you use DDR. Now, whether it helps internet explorer load up quicker, zip down files faster, or decreases your boot-time wait by 10 secs.....I don't know.

The end result is the really new motherboards use DDR, and if you're wanting something that will support all the new AGP 8x, ATA-200 or whatever else is scheduled to come out, it's probably best that you pick up a DDR board and skimp somewhere else in the system.

 

[Guest]

Hoho, its really simple actually, the difference between DDR= Double Data Rate(2x of SDRAM)
& SDRAM=Synchronous Dynamic RAM

Next,the bus speeds are termed as PCxxx where xxx refers to the different speeds available.
Generally, SDRAM bus speed ranges from PC66 to PC133
& DDR RAM in PC200, PC266 and higher

Lastly, there is rambus memory, identified in "RDRAM" these memory modules run faster than all memory currently at a BIG price payoff.

IMHO..i NEVER LIKED RAMBUS anyway, that stinking company has the tendacy to kill almost any new companies that started in the technology sector. Also, although RDRAM looks fast, it actually loses out to DDR RAM performance-wise cos' it crunches data in 16 bits per clock cycle while DDR RAM crunches 64 bits per clock cycle. In other words, 4 RDRAM cycles = 1 DDR RAM cycle. The speed/performance ratio still suffers in RDRAM. Some innovation...

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