|
Ben's Bargain Center
Where ghetto dogs come for the lowdown on deals
|
|
|
|
# 1
Posted 10:30 AM PST 1/3 by cubanx - Email: N/A - IP: Hidden
|
|
|
|
They'll probaly raise the Mushkin after they sell a few sticks...
|
|
|
|
# 2
Posted 2:39 PM PST 1/3 by MikeS - Email: N/A - IP: Hidden
|
|
|
|
Okay how does DDR Memory compare to SDRAM memory?
I thought that RDRAM was the best and the latest? How many RAM's are there now.
I have heard of
--SDRAM
--RDRAM
and now
--DR RAM
Which is which?
_MikeS
|
|
|
|
# 3
Posted 4:07 PM PST 1/3 by rascal000l - Email: N/A - IP: Hidden
|
|
|
|
RDRAM first came out on Pentium 4 system, which run at 400 FSB(front side bus), later...VIA has law suit again Intel because they won't let them use DDR chipset, until like month ago, VIA start release the DDR montherboard which support DDRAM, in many test, DDR performe better then RDRAM, keep in mind that DDR run at 266FSB at once, compare to RDRAM which run 4 x 100 = 400FSB
compare DDR to SDRAM ? everybody has notice that SDRAM run at fastest is 133MHZ FSB, and DDR which stand for Double Data Rate, which run double speed of SDRAM, which equal to 266MHZ FSB...DDRAM is cheap compare to RDRAM, and now many manufacture are releasing DDR motherboard.
|
|
|
|
# 4
Posted 5:37 PM PST 1/3 by mellojoe - Email: N/A - IP: Hidden
|
|
|
|
RDRAM uses a quad-pumped FSB for 400mhz of data transfer. Its only availible on Intel systems, which use a 100mhz Front Side Bus. The patent is held by the Rambus corporation. It has a theoretical bandwith of 3.2GB/s.
DDR SDRAM uses a double-pumped FSB for up to 266mhz of data transfer. Its currently only availible on AMD systems, which now use a 133mhz FSB. Some AMD systems still use a 100mhz FSB, but DDR SDRAM works fine in those sytems. It is just clocked at 200mhz. Intel may or may not have plans to release a DDR SDRAM chipset; I'm not sure about that information. You'll see it marketed as PC2100 (or PC1600 for 200mhz boards) because of its theoretical bandwith of 2.1GB/s (or 1.6GB/s for 200mhz boards).
SDRAM uses the full Front Side Bus. Its availible as PC133 (133mhz), PC100 (100mhz), and even PC66 (66mhz for older Celerons). I'm not sure of the theoritecal bandwith of SDRAM, but I've rarely seen much over 1GB/s.
RDRAM is the highest performing memory because of its complex use of the FSB. I don't understand it at all. The next version of Intel chip (the Northwood B coming out in about 6 or so months) will use a 133mhz FSB, so we will see PC1066 soon. The word from Rambus, Inc is that PC800 (that we use now) is the PC66 of SDRAM. Meaning, that PC800 is just the "baby" of the family, and they are working with technologies that will seriously improve the "speed" of RDRAM.
DDR SDRAM was a much cheaper solution that provided near the same performance as PC800. However, with DDR ram prices on the rise and the steady decline of RDRAM prices, the price difference is quickly declining. DDR SDRAM, if I recall correctly, can achieve much lower latencies (time between sending data and recieving, more or less, to and from the memory banks) than RDRAM. So, this is one advantage for it. DDR 333 (166 FSB) is on the horizon, so we should see some PC2700 (2.7GB/s) memory soon enough.
SDRAM has run its life, essentially, and is now being replaced by higher bandwith memory solutions. I can't predict the futures of RDRAM nor DDR SDRAM, but both are much superior to the bandwith limited SDRAM.
Maybe that clears some things up, maybe it just adds more confusion, but thats pretty much everything I know on that subject.
|
|
|
|
# 5
Posted 9:20 PM PST 1/3 by dwk - Email: N/A - IP: Hidden
|
|
|
|
#4 mellojoe:
Good summary of memory types but a couple of incorrect statements.
1. <Its currently only availible on AMD systems>
DDR chipsets are available for Intel PIII and P4. I'm presently using a 900MHz Celeron overclocked to 1.2GHz on an SiS635 based m/b w/ 512MB of PC2100. As for P4 systems, SiS has had the 645 out for quite awhile (even supports 333MHz DDR) and VIA has just recently released the P4X266 and P4X266A.
2. <Intel may or may not have plans to release a DDR SDRAM chipset>
Intel has already released the i845D. This is the Brookdale w/ DDR enabled.
#2 MikeS:
Tom's Hardware had a shootout of the main P4 DDR/SDRAM/Rambus chipsets. Just realize that Tom Pabst is heavily anti-Intel. Here's the link:
http://www6.tomshardware.com/mainboard/01q4/011217/index.html
I didn't see any glaring differences b/t any of the DDR m/b's and all were very close to (sometimes surpassing) the i850 RDRAM chipset. To sum it up here are your choices:
If you own an AMD or PIII CPU and..
- you're a cheap-skate buy SDRAM (PC133) for ~$30/256MB stick
- you've got a little extra money to burn and could use the noticible increase in performance buy DDR (PC2100) for ~$60/256MB stick
If you own a P4 CPU and..
- you're a cheap-skate who doesn't mind having a system that can't beat a similarly equipped PIII system, buy SDRAM (PC133) for ~$30/256MB stick
- you've got a little extra money to burn and could use the VERY noticible increase in performance buy DDR (PC2100) for ~$60/256MB stick
- you've got even more money to burn and think a few % difference on a synthetic benchmark matters, buy RDRAM (PC800) for ~$85/256MB stick
Of course, this is just my opinion ;-)
|
|
|
|
# 6
Posted 9:27 PM PST 1/3 by mellojoe - Email: N/A - IP: Hidden
|
|
|
|
# 5 dwk, thanks for clearing that up. I wasn't aware that Intel had the DDR solutions.
I guess I need to brush up on my motherboard data...
|
|
|
|
# 7
Posted 11:21 PM PST 1/3 by MikeS - Email: N/A - IP: Hidden
|
|
|
|
Thank God for people like you all here. That saves me countless hours of reading technical jargon on who knows how many "commericialized" websites!
Excellent posts!
|
|
|
|
# 8
Posted 5:47 PM PST 1/4 by Vaggeto - Email: N/A - IP: Hidden
|
|
|
|
Gotta remember the DDR 2700 whips the RDRAM up in almost all tests. So we'll have to wait and see some benchmarks of the new RDRAM above 800 coming out, to see if it can come on top again.
|
|
|
|
# 9
Posted 5:48 PM PST 1/4 by Vaggeto - Email: N/A - IP: Hidden
|
|
|
|
Gotta remember the DDR 2700 whips the RDRAM up in almost all tests. So we'll have to wait and see some benchmarks of the new RDRAM above 800 coming out, to see if it can come on top again.
|
|
|
|
# 10
Posted 7:00 PM PST 1/4 by dwk - Email: N/A - IP: Hidden
|
|
|
|
DEAL IS DEAD!
The Mushkin 256MB is still listed as $55 but comes up as $70 when I added it to my cart. The 512MB is now listed as $150
|
|
|
|
|
Copyright Ben's Bargain Center v2.5 2004
Page
generation by NewsPro >Archives
|
|
|
|
Xbox 360
|
|
|
|
Search
|
|
BizRate
|
|
|
They raised the price on their Corsair stick by a whopping $25! Luckily, they still have good deals on Mushkin and Generic DDR: