• Best of luck to the class of 2024 for their HSC exams. You got this!
    Let us know your thoughts on the HSC exams here
  • YOU can help the next generation of students in the community!
    Share your trial papers and notes on our Notes & Resources page
MedVision ad

Different RAM (1 Viewer)

SashatheMan

StudyforEver
Joined
Apr 25, 2004
Messages
5,656
Location
Queensland
Gender
Male
HSC
N/A
whats the differnce between DSRAM , DDR RAM and DDR2 Ram????


and can i use any for my computer?
 

jm1234567890

Premium Member
Joined
Aug 18, 2002
Messages
6,516
Location
Stanford, CA
Gender
Male
HSC
2003
SashatheMan said:
whats the differnce between DSRAM , DDR RAM and DDR2 Ram????


and can i use any for my computer?
depends on why kind of RAM your computer supports.

In general your computer would only support one type of RAM.
 

Templar

P vs NP
Joined
Aug 11, 2004
Messages
1,979
Gender
Male
HSC
2004
Basically, SDRAM sends one packet per clock cycle, DDR 2 packets, and DDR2 4 packets.
 

Templar

P vs NP
Joined
Aug 11, 2004
Messages
1,979
Gender
Male
HSC
2004
Unfortunately there is no set nomenclature for such items.

There's also DDR3, 8 packets per clock cycle, or as you would say, ODR or something like that. It is only found in graphics cards atm, and no standard has been finalised.

If this is your P4 2.4GHz PC you're talking about, you use DDR RAM.
 

Templar

P vs NP
Joined
Aug 11, 2004
Messages
1,979
Gender
Male
HSC
2004
No you can't.

And use something like CPU-Z to make sure you really use DDR RAM.
 

Templar

P vs NP
Joined
Aug 11, 2004
Messages
1,979
Gender
Male
HSC
2004
SashatheMan said:
whats cpu-z and where can i get it
Google

It shows you what processor you have, what motherboard and chipsets, and ram modules.

Also, it you want info for other components, SiSoft SANDRA is pretty good.
 
Last edited:

flamearrows

come on die young
Joined
Dec 4, 2004
Messages
296
Gender
Male
HSC
2005
Templar said:
Basically, SDRAM sends one packet per clock cycle, DDR 2 packets, and DDR2 4 packets.
But don't let this decieve you. DDR2 is theoretically much faster, but the typically slow latency timings usually result in only slightly better performance than DDR. The very fastest RAM (Corsair XMS3200PRO currently if memory serves) is, as you see, DDR not DDR2.

flamearrows
 

SashatheMan

StudyforEver
Joined
Apr 25, 2004
Messages
5,656
Location
Queensland
Gender
Male
HSC
N/A
flamearrows said:
But don't let this decieve you. DDR2 is theoretically much faster, but the typically slow latency timings usually result in only slightly better performance than DDR. The very fastest RAM (Corsair XMS3200PRO currently if memory serves) is, as you see, DDR not DDR2.

flamearrows

what makes it faster then other DDR ram? i didnt know DDR RAM differs in it self aswell
 

Templar

P vs NP
Joined
Aug 11, 2004
Messages
1,979
Gender
Male
HSC
2004
2-2-2-5 latency

And yes I agree, it's the best RAM, but I was trying to give a simple explaination.
 

SashatheMan

StudyforEver
Joined
Apr 25, 2004
Messages
5,656
Location
Queensland
Gender
Male
HSC
N/A
so what does it mean if i have 400mhz memory . isnt that like latency?



i use to think memory was just in megabytes. in 256mbs or something. now its like faster in other ways to complicating
 

Templar

P vs NP
Joined
Aug 11, 2004
Messages
1,979
Gender
Male
HSC
2004
400MHz is speed. Latency is the delay in time it takes to fill your RAM up from empty.
 
Joined
Nov 4, 2004
Messages
3,550
Location
Sydney
Gender
Male
HSC
2005
usually you can get a higher latency if you get ram that is faster than your motheboard bus speed that leaves leeway (ie. my ram is PC3700 but my motherboard supports upto PC3200) that allows me 2-2-2-6 latency
 

flamearrows

come on die young
Joined
Dec 4, 2004
Messages
296
Gender
Male
HSC
2005
SashatheMan said:
so what does it mean if i have 400mhz memory . isnt that like latency?



i use to think memory was just in megabytes. in 256mbs or something. now its like faster in other ways to complicating
Sorry for overcomplicating the issue :) Check your motherboard documentation, see what's the maximum speed supported, buy it. Other things, like the latency timings mentioned earlier are only for us hardcore geeks with money to burn :)

flamearrows
 
Joined
Nov 4, 2004
Messages
3,550
Location
Sydney
Gender
Male
HSC
2005
alot of it was due to the dodgy support for DDR2 which is why in theory it destroys DDR but in practise it wouldn't, its like equiping a ferrari but making it drag a 30m long boat
 

SashatheMan

StudyforEver
Joined
Apr 25, 2004
Messages
5,656
Location
Queensland
Gender
Male
HSC
N/A
flamearrows said:
Sorry for overcomplicating the issue :) Check your motherboard documentation, see what's the maximum speed supported, buy it. Other things, like the latency timings mentioned earlier are only for us hardcore geeks with money to burn :)

flamearrows
ti sais my motherboard can support 400 mhz ddr ram
 

Templar

P vs NP
Joined
Aug 11, 2004
Messages
1,979
Gender
Male
HSC
2004
flamearrows said:
Sorry for overcomplicating the issue :) Check your motherboard documentation, see what's the maximum speed supported, buy it. Other things, like the latency timings mentioned earlier are only for us hardcore geeks with money to burn :)
Oh yeah, 2-2-2-5 is pretty useless except for overclocking.
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top