... in each benchmark.
http://www.anandtech.com/chipsets/sh...tml?i=1541&p=1
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... 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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Don't you wish that life sometimes supported Control-Z?
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