... in each benchmark.
http://www.anandtech.com/chipsets/sh...tml?i=1541&p=1
Printable View
... in each benchmark.
http://www.anandtech.com/chipsets/sh...tml?i=1541&p=1
A big pointer here is that the SIS board is using DDR333.
Another thing to remember is that it's not even a reference board, it was an engineering test sample. So performance should quite a bit under retail boards. Chances are that by the time there are retail boards available, even with PC2100, the Sis 645 will remain extremely competitive with the i850.Quote:
Originally posted by isochar:
A big pointer here is that the SIS board is using DDR333.
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Duke of the OC Crusaders
System Specifications.
DDR will never outperm RDRAM until DDR becomes dual-channel...Quote:
Originally posted by isochar:
A big pointer here is that the SIS board is using DDR333.
Did you read the review? PC2700 comfortably beats the dual channel RDRAM setup in every benchmark.Quote:
Originally posted by Dan792:
DDR will never outperm RDRAM until DDR becomes dual-channel...
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Duke of the OC Crusaders
System Specifications.
Read the article!Quote:
Originally posted by Dan792:
DDR will never outperm RDRAM until DDR becomes dual-channel...
In memory bandwidth tests, you are correct.Quote:
Originally posted by Dan792:
DDR will never outperm RDRAM until DDR becomes dual-channel...
In latency, well, DDR probably will never have higher latency than RDRAM, so I guess they lose that battle too. https://www.sharkyforums.com/images/.../2005/08/2.gif
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Very nice. Maybe this well start to lower the prices. Coz I am thinking of making the jump to intel.
Duo
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Quote:
Originally posted by Mandorallen of Molynnr:
Another thing to remember is that it's not even a reference board, it was an engineering test sample. So performance should quite a bit under retail boards. Chances are that by the time there are retail boards available, even with PC2100, the Sis 645 will remain extremely competitive with the i850.
Not to mention it'll be HALF the price, and DDR is more than HALF the price of RDRAM. You could actually build an affordable P4 system - and not make Intel rich while you are at it.
DDR is about $15 for 128mb. RDRAM is about $30. I think a $15 price difference is not a factor in a high-end system. https://www.sharkyforums.com/images/.../2005/06/6.gif
How long has i850 been out? It still performs at the top of the heap while others have had plenty of time to tweak chipsets. Wait until Intel releases i845. https://www.sharkyforums.com/images/.../2005/06/5.gif
"In latency, well, DDR probably will never have higher latency than RDRAM, so I guess they lose that battle too." Not necessarily true. As RDRAM ramps up in MHZ, it gets HUGE decreases in latency. At 1066mhz it has lower latency than SDRAM or DDR266.
Not comfortably. It ties in some benchmarks. But this only goes to show that the "sweet spot" for memory bandwidth on the Pentium 4 is somewhere between 2.1GB/s and 2.7GB/s. It's doubtful that 3.2GB/s of DDR bandwidth would make any difference in performance.Quote:
Originally posted by Mandorallen of Molynnr:
Did you read the review? PC2700 comfortably beats the dual channel RDRAM setup in every benchmark.
Arcadian
LOL, and that is a motivational feature to you?Quote:
Originally posted by gotmonopoly?:
You could actually build an affordable P4 system - and not make Intel rich while you are at it.
Arcadian
Well, if that were true there wouldn't much difference between a system which only has PC600 and a system which has PC800..Quote:
Originally posted by Arcadian:
Not comfortably. It ties in some benchmarks. But this only goes to show that the "sweet spot" for memory bandwidth on the Pentium 4 is somewhere between 2.1GB/s and 2.7GB/s. It's doubtful that 3.2GB/s of DDR bandwidth would make any difference in performance.
Arcadian
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Duke of the OC Crusaders
System Specifications.
[This message has been edited by Mandorallen of Molynnr (edited October 08, 2001).]
More than likely, as isochar said, the latency of RDRAM at 800 is hampering performance. I think that the Pentium 4 can certainly use the memory bandwidth, especially as it scales to higher frequencies.Quote:
Originally posted by Arcadian:
Not comfortably. It ties in some benchmarks. But this only goes to show that the "sweet spot" for memory bandwidth on the Pentium 4 is somewhere between 2.1GB/s and 2.7GB/s. It's doubtful that 3.2GB/s of DDR bandwidth would make any difference in performance.
Arcadian
Also, while I agree that RDRAM is a powerful memory solution, especially due to its future potential, it has to be recognized that it is a proprietary memory standard from a company with somewhat sleazy practices. It can only be hoped that the technology becomes an open standard.
The biggest difference I can see is that, if I wanted(and had the $), I could go get an i850 equipped MB and 512MB of RDRAM today or I could continue to ohhh and ahhh over a chipset that isn't mass produced yet on a MB that isn't a production model running memory that I can't buy because it isn't mass produced yet.
Decisions, decisions. https://www.sharkyforums.com/images/.../2005/06/4.gif
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Barbaric Rigs
excepting that the pc800 will have lower latency...Quote:
Originally posted by Mandorallen of Molynnr:
Well, if that were true there wouldn't much difference between a system which only has PC600 and a system which has PC800..
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Check out my tunes at http://www.mp3.com/djxealot I write/mix techno, trance, dance and ambient =).
Look, if I can have a system that performs equal to an i850, for roughly 2/3's of the cost... Then what the hell is wrong with that?Quote:
Originally posted by isochar:
DDR is about $15 for 128mb. RDRAM is about $30. I think a $15 price difference is not a factor in a high-end system. https://www.sharkyforums.com/images/.../2005/06/6.gif
How long has i850 been out? It still performs at the top of the heap while others have had plenty of time to tweak chipsets. Wait until Intel releases i845. https://www.sharkyforums.com/images/.../2005/06/5.gif
Did God say that I must buy rambus with my P4 or I am sinning?
Right now the ECS K7S5A (SIS 735)performs very well for Athlons, it also costs around HALF as much as another decently performing Athlon board.
This trend will probably continue with the 645 since they are cheaper to produce, and are designed for value - yet provide performance to that of something that costs twice as much (MOTHERBOARD AND RAM).
Don't compare 128 megs of ram, I am not looking to buy a 128 stick. Because if I wanted 256, I'd have to buy 2 of them, and use up extra slots while I am at it.
256 megs of DDR ~30, RDRAM ~65
2x256 DDR ~60, RDRAM $130
SIS 645 Motherboard ~80
Asus TH7II or good i850 ~140-180
Now I can save roughly $160 and put it towards a better monitor, better souncard, speakers, video card, the things that actually matter.
Also the i845 is out, and it sucks monkey balls with SDRAM. I guess we will see how it performs with DDR..
https://www.sharkyforums.com/images/.../2005/06/6.gif
Yes https://www.sharkyforums.com/images/.../2005/08/2.gifQuote:
Originally posted by Arcadian:
LOL, and that is a motivational feature to you?
Arcadian
Just because I like their chip doesn't mean I like them. I'd rather get a cheaper P4 and overclock it up on a SIS645 board with DDR.
Keeping money with the competition is the only way to keep all companies progressing forward.
Now we just have to wait for VIA's P4X266A or P4X333.
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~ Baron ynd69 of the OC Crusaders ~
System Specifications
Trance - Is it in you?
I'm waitng for Pc1066 32bit RD-ram https://www.sharkyforums.com/images/.../2005/06/5.gif
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One thing I noticed was that I am not able to buy a DDR SDRAM mobo for the P4 and I am not able to buy a DDR333 memory stick for any mobo, so being excited about the DDR board beating the RDRAM board is premature in this case. If we used future technologies from Rambus they would mop the floor with the DDR SDRAM mobos.
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You can measure the greatness of any CPU component by running "QuakeIII" benchmarks
PC600 is higher latency than PC800 isn't it ?Quote:
Originally posted by Mandorallen of Molynnr:
Well, if that were true there wouldn't much difference between a system which only has PC600 and a system which has PC800..
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That's a very contradicting statement.Quote:
Originally posted by elimc:
One thing I noticed was that I am not able to buy a DDR SDRAM mobo for the P4 and I am not able to buy a DDR333 memory stick for any mobo, so being excited about the DDR board beating the RDRAM board is premature in this case. If we used future technologies from Rambus they would mop the floor with the DDR SDRAM mobos.
Don't be so excited about a technology that is hardly even here, be more excited about a technology that is DEFENITELY not here.
That's about what you said..
I build systems on a shoestring budget... $15 can be the difference between getting the Radeon LE, or Rage128 (due to not having quite enough $$ for shipping) https://www.sharkyforums.com/images/.../2005/08/2.gifQuote:
Originally posted by isochar:
DDR is about $15 for 128mb. RDRAM is about $30. I think a $15 price difference is not a factor in a high-end system. https://www.sharkyforums.com/images/.../2005/06/6.gif
How long has i850 been out? It still performs at the top of the heap while others have had plenty of time to tweak chipsets. Wait until Intel releases i845. https://www.sharkyforums.com/images/.../2005/06/5.gif
And um... i845 IS out. It's BEEN out. It's slow! I want to see what i845-DDR does, though!
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On the tom's hardware test, it only barely pulls a win in a couple of benchmarks, but it does keep up very well overall.