5:4 2336 or 1:1 3448?

I'm getting a 2.8c from a friend that will do FSB255, but I have a small problem:

I currently have some Kingston HyperX PC3000 that will do 233MHz 2-3-3-6 @ 2.85v, but with the 2.8c, I'll only be able to run at 204MHz (fsb255, 5:4).

Now the question:

Is it worth getting some adata PC4000 to do 1:1 3-4-4-8 or will I get the same (or more) performance with the PC3000s at 5:4 2-3-3-6?

Thanks for any info.

My ADATA does very well at 255FSB at 2.5-4-4-7 with PAT enabled. It pulls about 5800 in Sandra 04, about 5400 in Aida32 read, and 2100 in Aida32 write. Probably better than most 200FSB ram at 2-2-2-5...

You really don't need to run the 3-4-4-8 timings until you're 266FSB or faster.

Go for 5:4 and tight timings. Your find that your 3dmark01 score will reflect that this is faster.

5:4 and 2-2-2-5 won't always beat PC4000. It depends a bit on details. Here's a case in point:

IS7-E running a 3.2C at 238 fsb, or 3.81 gig.

BH-5 at 5:4, 2-2-2-5, partial PAT, 800 strap, SR-Enh-A-D-D:

3DMark2001=20400
Aquamark=50662
Sandra unbuffered=2900
SuperPI 1M=38 sec
PCMark2002=11504

Vitesta PC4000 at 1:1, 2.5-4-3-6, full PAT, 667 strap, A-A-A-D-D:

3DMark2001=20662
Aquamark=51049
Sandra unbuffered=3285
SuperPI 1M=37 sec
PCMark2002=11740

Note: no 3DMark2003 scores as my 9800XT is defective and craps out there. But that is more video card dependent anyway.

Here, the fsb is so low, that at DDR476 my Vitesta is underclocked, thus I can run 2.5-4-3-6 versus 3-4-4-7. Actually, I can run these faster timings up around 270, 1:1 or so. So PC4000 isn't always slow. A 37 sec SuperPI 1M time is excellent for just a tad over 3.8 gig, when you consider the slow CAS timings and low DDR.

Normally, 238, 1:1, 2-2-2-5 is easily within reach of my XMS3500 but not at the 2.8 VDIMM max of the board, much less on a 667 strap to get full PAT. So both setups are running 2.8 VDIMM.

Life is not so simple: 'always' isn't always.

parallax said:

I'm getting a 2.8c from a friend that will do FSB255, but I have a small problem:

I currently have some Kingston HyperX PC3000 that will do 233MHz 2-3-3-6 @ 2.85v, but with the 2.8c, I'll only be able to run at 204MHz (fsb255, 5:4).

Now the question:

Is it worth getting some adata PC4000 to do 1:1 3-4-4-8 or will I get the same (or more) performance with the PC3000s at 5:4 2-3-3-6?

Thanks for any info.

Click to expand...

Is your KHX3000 BH-5? Is it 2x512MB at DC? Can you run it with more relaxed timings than 2-3-3-6 at higher FSB than 233?

Also, can't you run the KHX at 204MHz at tighter timings, like 2-2-2-6?