View Full Version : P4+DDR is it a good choice
FrankMasterFlash
11-16-01, 11:26 PM
Will DDR-SDRAM offer good performance with a P4? Will it be close to RD-RAM and not a a poor performer as regular SD-Ram?
Mr. $T$
11-16-01, 11:45 PM
DDR is the BEST type of ram out there from a clean hard drive my co-worker formated and installed xp in 15 miniuts. on a normal computer with SD it takes 30+. Go DDR!
Burning Phoenix
11-17-01, 12:07 AM
The reviews have been reading on the new boards show RDRAM is still the leader in bandwidth even with fastest and latest DDR333. Here is one reliable source most people read from:
Tom's Hardware Review (http://www6.tomshardware.com/mainboard/01q4/011008/index.html)
RD-RAM is still the best to match with CPU that is 1.2G or above that speed, but RD-RAM is too costly in my opinion, and the slightly better performance just don't worth the extra money.
Believe it or not, I read an article before saying that the ideal CPU speed to memory bandwidth ratio is 2.29, and the minimum should be no worse than 1.3. For example, a 1.5GHz CPU is requiring 3400MB/sec memory in ideal case, and minimum requirement would be 1950MB/sec.
~Philip
RDRAM definitly is the best currently..
People had some serious gains getting Samsung RDRAM in overclocking..
JetMech
11-17-01, 03:36 PM
With my current configuration Sandra is showing 1466MB/s actual using Samsung PC800 RDRam compared to 830 MB/s using PC2100 CL2 DDR SDram. I think that says it all. Of course Sandra doesn't use the i845 chipset in its comparisons.
funnyperson1
11-17-01, 03:39 PM
yes, DDR is almost as good, if you look at the actual performance comparisons DDR is not too far behind, SiSoft benchies are great , but it doesnt amtter if the cpu doesnt use all that bandwith, its stupid to buy RDRAM with the price difference....
JetMech
11-17-01, 04:05 PM
Originally posted by funnyperson1
yes, DDR is almost as good, if you look at the actual performance comparisons DDR is not too far behind, SiSoft benchies are great , but it doesnt amtter if the cpu doesnt use all that bandwith, its stupid to buy RDRAM with the price difference.... I can understand your point to a certain degree but the price thing between RDram and DDR SDram has become more or less a none issue. People with financial issues can certainly opt for DDR but for the "high Performance" enthusiast thats like putting regular gas in a 5.0 Mustang. You're going to get a performance hit.
Originally posted by JetMech
I can understand your point to a certain degree but the price thing between RDram and DDR SDram has become more or less a none issue. People with financial issues can certainly opt for DDR but for the "high Performance" enthusiast thats like putting regular gas in a 5.0 Mustang. You're going to get a performance hit.
Not much of a performance hit.. DDR is just a little behind.
i agree, i have said over and over again in other forums.
if you can't afford RDRAM, then don't get a P4
you spend all that money on the P4 but compromise performance when usind DDR with it
and im not saying that DDR won't ever be faster than RDRAM, but people have found out that in trying to make DDR better than RDRAM it wasn't as easy as they thought
Grant it DDR and RAMBUS are very misleading.
a lot of people are under the impression that the technology behind RAMBUS and DDR is something great
not really
DDR, old bus technology, just now its dual pipelined
RAMBUS, quad pumped to get 400mhz, its a fancy name for multiplexing
(the fact that RAMBUS is Dual Channel and has its own RAMBUS is what makes it superior to other types of memory
now, im not saying its not an improvement from Pc100, but the innovation and technology just still isn't there
oh ya, by the way, word is the Intel chipset for P4 supporting DDR will still have to have memory installed in pairs, so there goes saving all that money you thought you would save
theflyingrat
11-18-01, 03:06 PM
Fortunately, the Intel DDR chipset, though, will not be the only choice P4/DDR buyers have. SiS and VIA DDR motherboards for the P4 are already in production and are shipping (the VIA boards have been for quite awhile). ALi motherboards for DDR are coming very soon. So be on the lookout - this arena is about to become very interesting!
DDR is nearly as powerful as RAMBUS. Although RAMBUS usually holds the edge in performance, 1)the memory itself is a lot more expensive, and 2)the Intel/RAMBUS chipsets themselves are more expensive, so expect to pay $30-$40more for an i850-based motherboard than an SiS 645 or VIA P4X266-based motherboard.
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