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X1900 Series Overclocking and Feedback thread

Allright decided to run it at 690/800 and got a few hundred points extra on 3dmark05. The score is 12,203. Here is the screenshot



12203.jpg
 
nice 3dmark05

13,160
 
What voltege did you use on the gpu core and ram to get this high?
 
Not sitting infront of my home system. But I believe Im running 1.45 on gpu and 1.099(or 2.099) on the ram. I will post screen shots and give more detail. I know I hardly increased the voltages at all. Was rather hesitant to do so on this card. I got it the day they were released and paid close to $700 for it...So I want to maximize my investment.

Anyways with everything running underload the GPU never exceeds 48C. These things run so hot it actually increased the overall temperature of my water loop by 6C. My Opteron was running OC'd @ 2.8Ghz around 34C and now its hitting 40C-41C.

I do know for a fact the XT's have a lower OC limit. Same chip just didn't meet XTX tolerances. So to get the same OC as a XTX your going ot have to throw more volts its way.
 
I personally don't think there is anything phisically different between XT and XTX card, all it is is the bios, cards should overclock the same.
 
I completely agree with you. They are exactly the same Core. However every core that rolls of the manufacturing line has different tolerances, infact ever core is unique. While the architecture is the same, the tolerances between the transistors will be different. Ones with Tight tolerances become XTX's ones on the lower end become XT's. Its the same as High speed DDR modules.
 
I don't think that in this case they had to do that 'cause XT and XTX is not that much of a difference in the core, it's only 25MHz, and ram is the same, samsung 1.1ns
 
They do that for everything. RAM, CPU's, GPU's. 25Mhz means one thing. That the core is capable of running 25Mhz faster. This is how Etching works, and its just cost effective for the manufacturer.

Its like making cookies. Some cookies get more chocolate chips, others less. Both made from the same cookie dough.
 
Think about it whats the point for Ati to do something like that when bios could do all the nessesery
changes.
 
I have worked for a FAB plant. I have a Bachelors in Electrical Engineering....THink about it??..Ok...done.

Now you think about it. IF every chip is a little different, and every chip has certain tolerances then some can be XTX, and some will be XT's and some will get thrown away. The ones that don't meet the specs for a XTX become XT's, the ones that don't meet specs for XT's get thrown away, or used for an even lesser card. Thats it. If you cant see this (and are entitled to your own Opinion.) then there is no way I can explain it in any better detail.

This isn't some marketing scheme. Its just how making Microprocessors is.
 
Dude.........................:wtf:
Back in the day when 6800gt and 6800ultra came out, both cards looked identicle, i flashed my 6800gt to ultra and it worked, BUT in reality the cards were physically different, and there was a REAL way to tell not some theory. X1900XT and XTX are identicle physically and bios is THE ONLY difference and if it wasn't there would be a real way to tell.:banghead: Now that doesn't mean that no one should buy XTX, if I had extra cash I would probably buy one just for the name:nutkick:
 
Ok, I thought we were talking about X1900xt/xtx's not how processors get manufactured. Now listen, if you were a manufacturer of x1900xt/xtx card and you knew that x1900xt can handle way more then 625/725 with out changing anything except bios, why in the world would you pick out which is chip is xt and which is xtx when you could make all the card the same and then put different xt and xtx bios on them and save lots of money. What your trying to say about x1900xt/xtx doesn't make sense.
 
well he's right back in the 9800 days the 256MB cards that passed the tolerance went to the xt pile the other went to the pro pile. why would ati want the extremist market to buy xt's when they can charge them more for xtx's?
they don't thus the xtx's should overclock further as well as run cooler at those higher speeds.

true the whole why 25MHZ and same memory thing has spurred many overclockers to buy Xt's over the xtx's but it still doesn't change the fact that the x1900xtx's had to pass strichter standards than the xt's.

it's the same reason why the x1800xt 256mb cards don't oc as well as the 512mb ones. same core, same 1.26ns memory (just half) but the 512 cards oc way further.
Ati isn't ignorant about overclocking, they know their extremist's do it, which is why they make sure their cards have plenty of headroom for it. thus the more expensive cards will overclock better than the cheaper ones, ati's assured it.
 
yogurt_21 said:
true the whole why 25MHZ and same memory thing has spurred many overclockers to buy Xt's over the xtx's but it still doesn't change the fact that the x1900xtx's had to pass strichter standards than the xt's.

it's the same reason why the x1800xt 256mb cards don't oc as well as the 512mb ones. same core, same 1.26ns memory (just half) but the 512 cards oc way further.
Ati isn't ignorant about overclocking, they know their extremist's do it, which is why they make sure their cards have plenty of headroom for it. thus the more expensive cards will overclock better than the cheaper ones, ati's assured it.
Click to expand...
25Mhz on the core and 50Mhz on the ram , I don't think they need to pass strichter standers with every xtx's. As far as x1800xt 256 and 512 they are different, can't you tell:wtf: 256---512:rolleyes:
 
Whatever this could never end we should get buck to our X1900XT/XTX Experiences & Successful OC'ing
 
Tastes Great....Less Filling...Yup going no where. So I need to post some screen shots.
 
Ser-J said:
25Mhz on the core and 50Mhz on the ram , I don't think they need to pass strichter standers with every xtx's. As far as x1800xt 256 and 512 they are different, can't you tell:wtf: 256---512:rolleyes:
Click to expand...
umm apperently you can't read. lol:wtf:
"the same 1.26ns memory (just half)" meant that it's the same memory, same ns, same clocks, just half the amount. lol seriously.

and do you even remember the 9800's?
9800 pro 256 380core 680mem
9800xt 412 core 730 mem
that's only 32mhZ core and 50MHZ mem difference as well and it's actuall 100MHZ effective difference in mem clocks on the x1900's lol not just 50.
doesn't change the fact that the flagship ati card always adheres to stricter standards. same with nvidia.
it was the same with the 9700vs the 9700pro, the x800xt vs the x800xtpe and the x850xt vs the x850xtpe.
ati having a card clocked close to it's flagship is nothing new, all of the flagships boast only slightly higher clocks, but will ALWAYS overclock further given the conditions are the same on both cards (cooling, environment, psu, system). It's a matter of chip selection.

I mean it's the same reason opterons overclock better than the Athlon 64's for goodness sake. You're the starter of that thread, i suprised you didn't think of the equalitity between the two. you paid more for your opteron 148 than you would have for a 3700 sandiego. why?
because the opterons have to pass stricter standards than the athlon 64's clock has nothing to do with standards testing my freind lol.:slap:
all manufacturers have the one piece of hardware they test to the max to be their best performer.
II'm quite suprised you even thought opposite actually.
 
yogurt_21 said:
umm apperently you can't read. lol:wtf:
"the same 1.26ns memory (just half)" meant that it's the same memory, same ns, same clocks, just half the amount. lol seriously.

and do you even remember the 9800's?
9800 pro 256 380core 680mem
9800xt 412 core 730 mem
that's only 32mhZ core and 50MHZ mem difference as well and it's actuall 100MHZ effective difference in mem clocks on the x1900's lol not just 50.
doesn't change the fact that the flagship ati card always adheres to stricter standards. same with nvidia.
it was the same with the 9700vs the 9700pro, the x800xt vs the x800xtpe and the x850xt vs the x850xtpe.
ati having a card clocked close to it's flagship is nothing new, all of the flagships boast only slightly higher clocks, but will ALWAYS overclock further given the conditions are the same on both cards (cooling, environment, psu, system). It's a matter of chip selection.

I mean it's the same reason opterons overclock better than the Athlon 64's for goodness sake. You're the starter of that thread, i suprised you didn't think of the equalitity between the two. you paid more for your opteron 148 than you would have for a 3700 sandiego. why?
because the opterons have to pass stricter standards than the athlon 64's clock has nothing to do with standards testing my freind lol.:slap:
all manufacturers have the one piece of hardware they test to the max to be their best performer.
II'm quite suprised you even thought opposite actually.
Click to expand...

Opterons and Athlon are different CPUs...........OK and if it wasn't it would all be Athlons or Opterons OK...........lol seriously:laugh: and also when you talk about cards that are two three or five yours old, that is abvious that back in the day 25Mhz extra was a huge difference when now it isn't:nutkick:
 
venus and sandiego cores have been proven to be the same cores lol. you seriosuly have no idea what you're saying. you're saying that just because the name is different then it's a different piece of hardware, hmmm couldn't that be applied to the x1900xt vs the x1900xtx lol. you've no logic at all, only childish insults. and you've obviously no idea about any of the inner workings of a computer.
 
Thank you Yogurt!!!:toast: Im so glad someone else that knows something about microprocessors agrees with me. I really felt like that entire conversation was falling on deaf ears.
 
I agree with yogurt 100%, the 1900xtx's have way higher standards than the xt's, which is why they can run more stable at higher speeds. Just look at my old GTO2, all that was, was a crippled x850 core with a quad of pipes locked, why? because that gpu was unstable at speeds of a xt pe, or even an xt, so what did tehy do? they locked the last quad and lowered clock/mem speeds n sold it as an x800. Simply put, some chips can handle higher speeds, which is why Ser-J'? opty (same core as my sandiego3700) can handle 200mhz more than my 3700.
 
yogurt_21 said:
venus and sandiego cores have been proven to be the same cores lol. you seriosuly have no idea what you're saying. you're saying that just because the name is different then it's a different piece of hardware, hmmm couldn't that be applied to the x1900xt vs the x1900xtx lol. you've no logic at all, only childish insults. and you've obviously no idea about any of the inner workings of a computer.
Click to expand...
Listen Yogurt, first of all if venus and sandiego have been proven to be the same then overclocking would be the same, but it's not...........lol..........I hope thats not news for you. Second of all I do know inner working of a computer....but I don't know about you:roll:
 
SerJ, ur opty and my sandiego are the same cores, its a fact, no arguing, period, you take off the IHS off our cpus and u'll find two idendical cores. AMD just slapped on a IHS on your opty saying itsn an opteron, and a SanDiego 3700 on mine, why choose which IHS goes on which core? because your opty can oc better, making it a better core. Doesn't that sound logic? I wouldnt sell a core with a higher potential for the same money as the slower one.
 
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