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GPU/Mem clocks

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May 24, 2004 12:07:58 PM

Should you maintain GPU and MEM clock speed ration from default when you overclock, or is there a rule of thumb that says say 'always ensure the MEM is twice GPU clock speen for best performance'
Has anyone out there done this analasys?

MIS645Ultra/2.4G A-Pent/2*Corsair 256MBit CL2-2-2-7XMSLLPT PC3200 DDR RAM/450W Enermax PSU/1*40Gig 7200rpm Wes-Dig/1*20Gig 7200 Hitachi Disk/GeF3 Ti200 LeadTek G-Card running 520/230 Ram/Core MHz.

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May 24, 2004 3:41:32 PM

That's bullsh*t, some card gains more perform with higher mem clock, some with core. On my card it's core, on the newer X800 series the mem gains more. You'll have to figure out which gives u more performance on ur card.

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May 24, 2004 4:06:13 PM

OK OK, these were my thoughts, just soliciting input. I usually maintain the same persentage overclock for MEM and GPU myself and have tended to get optimum results, and best overclock, and did not know if this was a fluke or something to do with the chip-set and overall architecture of the graphics IC solution as a whole.

MIS645Ultra/2.4G A-Pent/2*Corsair 256MBit CL2-2-2-7XMSLLPT PC3200 DDR RAM/450W Enermax PSU/1*40Gig 7200rpm Wes-Dig/1*20Gig 7200 Hitachi Disk/GeF3 Ti200 LeadTek G-Card running 520/230 Ram/Core MHz.
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May 25, 2004 8:12:45 PM

So if you raise only one value from 230/520, the score goes down!?

Maxtor disgraces the six letters that make Matrox.
May 26, 2004 12:20:27 PM

To the point where, if I now increase either CPU or MEM by a 1hz, I get some tearing and/or snow effects.

Unusuall especially since I found the same on my Ge-Force 3, even after with full GPU/MEM volt mods, and some aggressive Peltier cooling (problem here is condesation).

Just seened strange, and more than chance that's all!!

MIS645Ultra/2.4G A-Pent/2*Corsair 256MBit CL2-2-2-7XMSLLPT PC3200 DDR RAM/450W Enermax PSU/1*40Gig 7200rpm Wes-Dig/1*20Gig 7200 Hitachi Disk/GeF3 Ti200 LeadTek G-Card running 520/230 Ram/Core MHz.
May 26, 2004 12:22:22 PM

Oh, and only N00B! to This Forum! If you know what I mean

MIS645Ultra/2.4G A-Pent/2*Corsair 256MBit CL2-2-2-7XMSLLPT PC3200 DDR RAM/450W Enermax PSU/1*40Gig 7200rpm Wes-Dig/1*20Gig 7200 Hitachi Disk/GeF3 Ti200 LeadTek G-Card running 520/230 Ram/Core MHz.
August 10, 2004 8:53:34 PM

Your snow/tearing is purely by coincidence. If you change the ratio it has no effect.

Mobile P4 1.6 @ 2.4 - Gigabyte 8ipe-1000 Pro - 4x256 Corsair Value PC3200 - Jaton MX440 @ 370/590 - 80Gb WD 8Mb Cache -
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