R400/R500 guessing game

I always thought the R400 was more like Fear

 

Nnnnnnnoooooooooo!!



Please let Rampage rest in peace. I thought we had gotten over that once all the NV30 was launched and all the "NV30 will be like Rampage" stuff subsided...

 

I thought r400 was going to have to wait for low-k dial proc feasability. Next year.

 

Sorry
Please don't think I'm an inhumane madman which laughs on Rampage's fate. It's a really sad thing, and it could have been great if it had been released in early 2001.

What I mostly see in the R400 are Rampage's qualities. I probably should have not said it...


Uttar

 

Naa the obvious name is "Rage Fury Frenzy 10000 PRO"

Personally I always thought Rage Fury was the coolest ever Vcard name.

 

Department of the Redundancy Department.

 

lmao

 

Actually it isnt redundant atall.

 

rage n.-

1-A. Violent, explosive anger.
---B. A fit of anger.
2-Furious intensity, as of a storm or disease.

fury n.-

1-Violent anger; rage.
2-Violent, uncontrolled action; turbulence.

Actually its totally redundant

Back to the Department of Redundancy Department for Rage Fury.

 

~350mhz ceiling I think is more based on Ram specs then actual memory controller design. I can go significantly above 350mhz but with tweaking and obviously out of spec voltages .

If I understand right, all the pipelines are dedicated in shading one triangle at a time and if there is overfill as in less pixels left to be shaded then the number of pipelines, those pipelines results are dumped. Meaning to me wasted use of pipeline availability. How about having the ability to shade more then one triangle at a time and keep the pipelines as much as possible actually shading triangles?

 

Sure - bumping VDD/VDDQ will help. Actually the limit on the R300/942 board seems to be more like 340-345MHz. I disagree completely - it is most definitely independent of memory limitations.

Consider the fact that the 9800 Pro uses exactly the same memory as the 9700 Pro yet typically overclocks to 370-400m.

MuFu.

 

Actually bumping VDDQ hinders performance in my case but VDD was a true blessing . The Tachyon uses a different voltage controller for VDDQ which doesn't require the back plate found with the typical Radeon 9700 Pro's. Basically the Tachyon doubled up and used the same type of voltage controller for both VDDQ and VDD. So you say it is the same type of memory? hummmm. Anyways 3.2 volts for VDD allows me to go to 370mhz without any problems on my Raddy. Anything over 3.16v for VDDQ causes overclockability to digress the other way with bad artifacts. So I think many folks upped the voltage of VDDQ and had terrible results not knowing that this value could be detrimental if raised too high.

I may still be able to get a higher stable memory overclock once I install a higher resistor into my circuit for VDDQ in combination with the potentiameter. Since 3.16v is the lowest it goes and 2.8v is the stock voltage. I've havn't played around with VDDQ voltages between 2.8 and 3.16v. So maybe I will be able to get above 370 mhz. I hope so.

 

Mufu,

Just saw your thread over at Rage3d.com about bios and memory speeds, pretty interesting. To fill you in a little bit here is the circuit I built which controls Vcore, Vmem I/O and core or VDDQ and VDD.




I can controll the voltages in a given range externally since I have the circuits mounted in a floppy drive bay.





Here is an example of Vcore being controlled in real time using TGM (Tachyon Graphics Monitor) to measure the values. First at 1.5v is the stock value, the first jump is when I insert the circuit into operation by one of the dip switch switches. Then the increase in voltage is due to me adjusting the potentiameter up to a value of 1.9v (smoking ). Vmem I can do the same thing. The dip at around 1.9v isn't a voltage transient but when I acknowledged the TGM alarm.





The dynamic way of adjusting voltages has allowed me to fine tune for overclocking which wouldn't be possible if I guess at a given value. Plus if VDDQ is set to high it will indeed degrade overclockability.

Sorry everyone for getting off topic here .

 

thats sweet!
i want one

 

Heh, yeah that is sweet.

No, I'm saying the mem interface limitation is largely independent of BGA type. Testament to this is the fact that users with Hynix 3.6ns RAM are reaching very similar O/C's to those with Samsung 2.86ns BGA after flashing the Pro BIOS (330-350Mhz) and the fact that the 9800 Pro uses the same memory as the 9700 Pro yet is capable of higher memory clockspeeds.

Anyway... on with the R400 speculation!!!

16 unified PS/VS pipes, 4 double-pumped TMUs (i.e. 16x0.25, hehe), 512-bit memory bus, dedicated programmable tesselation hardware, integrated Stargate, tea & coffee maker, free hooker etc etc...

MuFu.

 

Sorry to bring back "3dfx" into the thread but... What makes you say that? Back in those days (circa mid-2000), it was "DX9" (as "DX9" could be at the time)... what aspects of Rampage do you know for certain?

 

Umm.... I'd have to say the hooker isn't "free', unless you mean she's "free" in the same context that nVidia was talking "free" FSAA with the NV3x's.....

 

The difference being you can always pay extra for a hooker whereas nV's FSAA is a lost cause...

MuFu.

 

BA DUMP BUMP!