Chipset Intel 965 VS 975 with E6400 by Giorgio Benetti alias Benna65 & Vincenzo Parrello alias v_parrello
www.amdclockers.it/forum
I apoligize for my bad english... i just translate this review that has been made from one of mine moderator (vparrello) and another user (Benna65).
I have to thanks both them, cause they did an awesome job!
Intro
The following thread is made to compare this two asus mainboard, equipped with the intel 965 (P5B Deluxe) and with the intel 975 chipset (P5W64 Professional).
Both mainboards are the High end by ASUS!
As we all now, this two chipset run very different in overclock when wh pull up the FSB. And in particular mode, the 965 mainboards let us to reach very high fsb when they change the strap from 1066 to 1333 at the 401MHz wall.
In the other hand, the 975 mainboards usually wont reach the same fsb score as the 965 ones, but they keep the same aggressive chipset timings setup, and the strap is the same when we go over the 401MHz wall.
What we want to show in this review, is to see how do these two different chipsets with a particolar look at their performance growin up the fsb. We want to answer the usual question of everyone who doens't know if it is worth or not to buy a 965 mainboard instead of a 975!
Configuration settings:
We made these tests on two different systems. It doens'nt only change the mainboard, but the memories too (but they have the same D9 chip) and the HDD too, but they are a lot similar in all the other parts. It is normal that it will not be a perfect review, cause there will be some error for sure, but the meaning of this review is to find a overclock performance trendlines to compare. We make different test at different fsb!
Here it is the two system we used:
What do we have to see in the scores:
Here it is the scores we've got at various frequencies with different benchmarking tools:
And here it is the trendlines we talked abt before, now we can see the real difference b/w the 965chipset and the 975:
From the graphs we found two important points:
1. About the bandwith performance and the latency performance the 975 chipset beat the 965 everywhere;
2. about the calculum performance the intel 965 chipset beat the 975 till the 400MHz wall, then the 975 keeps to get better and as we all know on the 965 starts the 1333 strap and it looses performance. The only test for the calculum performance where the intel 975 beats the iontel 965 is for the 1M super-pi, and it is because this test it isn't long enough, and we think the "problem" is in the bandwith and in the latency performance. While in the other tests is true what we said before.
Conclusions
At this point the conclusions could be differents because of what we read in the scores. We have to say that from this test doens't come out a real winner, but two different platform to choose from keepin in mind this points:
- price difference to spend if we want a 975 mb or a 965mb ;
- the frequency we want to make our cpu to work (below the 400MHz wall the 965is better, above the 975 is the best) ;
- the better functions of the 975 chipset (i.e. crossfire ready);
- what kinda cpu we are gonna buy or we have, the max multiplier and the max fsb reachable from it.
Test Screenshots
FSB 266 chipset 965, SuperPI, CPUBench2003 e Everest, ScienceMark 2.0, Sandra
FSB 266 chipset 975, SuperPI, CPUBench2003 e Everest, ScienceMark 2.0, Sandra
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