Revisiting 680i vs 975X

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lopri

Elite Member
Jul 27, 2002
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I've heard the upcoming BIOS for DFI P965-S will introduce 1T but not sure. Gary mentioned it a few times in AT motherboard reviews, so he probably has a good idea where 1T stands as far as P965 is concerned.
 

lopri

Elite Member
Jul 27, 2002
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Just from a teeny-weeny bit of worry: Please note that my tests were done from the pure performance point of view - that is, utilizing various (synthetic) benches. But in a grand scheme of things, if you need to make a choice between 2 x GB for 1T vs 4 x 1GB for 2T, the answer can't be clear enough. You should go with 4GB / 2T instead of 2GB / 1T. The area where my tests are covering is a minuscule part of normal computing system. Compared to that, doubling the ammount of memory will out-weigh any other tiny tweaks at any given time. Especially if you're using Windows Vista. If i were given a choice at this point, I'd go with 4 x 2GB DDR2-800 / 5-5-5. Yes, 4 x 2GB for total 8GB of system memory with CL 4.

 

The-Noid

Diamond Member
Nov 16, 2005
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I said this a long time ago and everyone laughed at me :). DDR2-1066 4-4-4-12-1T is as fast as it gets if you have the ram to keep up with it :).
 

AmdInside

Golden Member
Jan 22, 2002
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Nice. I have a Core 2 Duo E6600 running at 3.2GHz at default voltage. I am sure I can get it higher but it is perfectly stable and like the fact that it is running at default voltage. But looking at your results, it is very tempting. :)

Just curious...do you overclock your Geforce 8800GTS top achieve those scores? I want to compare my scores to yours. If so, what speed is your Geforce 8800GTS running at.
 

lopri

Elite Member
Jul 27, 2002
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AmdInside: The actual clockspeed of GTS 320 can be read from Everest in the 3DMark05 screenshot. I set the core = 636 / memory = 986. There are only 3 performance-affecting clock points in G80 chips past 600MHz (621, 648, 675) and clocking 636MHz (and above) will get you 648MHz actual clock speed. So the actual speed becomes = 648 (core) / 1512 (shader) / 999 (memory)
 

garkon8

Member
Oct 5, 2004
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For me: Higher memory speed @2T > Lower latencies @1T.

In Super pi 1M my best time was 12.86s (memory speed=1152 5-5-5-15 2T). When I ran it at (memory speed=800 4-4-4-12 1T) I could not break 13s.
 

lopri

Elite Member
Jul 27, 2002
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How are your sub-timings configured? Is the voltage requirement same between the two different settings? I'm asking because I've only tested this 1T vs 2T with an E6400. It'd be interesting if 4MB L2 CPUs show a different tendency.