Catalyst AI Optimizations examined by anandtech

[kylebisme]

Originally posted by: BFG10K

R3xx don't support 3DC or Adaptive trilinear amoung other features

AFAIK the R3xx core does support adaptive trilinear.

He is talking about adaptive anisotropy which the r3xx doesn't support, only the rv3xx line and r420 cards do.

Oh and as for the moral highground, it wasn't geting Ati anywhere anway.

 

[Elcs]

Originally posted by: BFG10K
Also with application detection/shader substitution ATi no longer has the moral high ground over nVidia though it's good that ATi allows users to disable it.

Yeah, it does drop their rating slightly... but some people couldnt see the 'cheating' and others could. An option to enable/disable is great.

The programmable nature of the r300 VPU allows it to support new features (Temporal AA, Catalyst A.I. for instance) but ATI does concentrate on its newer tech more than anything else.

Whichever way it works out, Im still happy that my 9800Pro is still having some improvements made to it even if they are only available due to ATI focusing on their latest and greatest.

Even in some games now, every single frame counts for something. Its definately going to make a difference to me as Im keeping this 9800Pro for a long time.

 

[rbV5]

Originally posted by: TheSnowman

Originally posted by: BFG10K

R3xx don't support 3DC or Adaptive trilinear amoung other features

AFAIK the R3xx core does support adaptive trilinear.

He is talking about adaptive anisotropy which the r3xx doesn't support, only the rv3xx line and r420 cards do.

Oh and as for the moral highground, it wasn't geting Ati anywhere anway.

Doh, My mistake, 9600 cards do support adaptive trilinear (they were first), 9500/9700/9800 cards do not. And I'm talking about adaptive trilinear filtering.

 

[Genx87]

thought even Carmack looked at what was done, and said it was perfectly fine. And it was coded by Humus who does work for Ati, AFAIK.

There was an interview over at Beyond3d and he didnt seemed terrible thrilled about it and said it produced a lower IQ than what was intended. Though he did admit some people will probably not see it.

 

[gururu]

Originally posted by: Genx87
There was an interview over at Beyond3d and he didnt seemed terrible thrilled about it and said it produced a lower IQ than what was intended. Though he did admit some people will probably not see it.

yea I read that too. he whined about shader replacements. he never mentioned nvidias Doom3 opts until recently, when he recently commented on ati's AI.

Anandtech states:

The only case in which NVIDIA currently does shader replacement for performance reasons is in Doom3.

I didn't even know nvidia did shader replacements in D3 until Carmack hinted at it and now anandtech states it.

 

[DAPUNISHER]

I didn't even know nvidia did shader replacements in D3 until Carmack hinted at it and now anandtech states it.

You mean ATi right? Was that a freudian slip? j/k

 

[nitromullet]

Some companies release next gen cards then forget all about the old ones or offer limited support beyond it. I was just confirming that ATI are introducing some of these new features for the older tech.

I just recently used a Radeon 7500 and a GeForce3 MX 400 with their latest respective drivers and had no issues with either card. Of course, some of the newer functionality isn't there, but this is due to physical limitations of the chip itself (i.e. DirectX 9 support). While both companies have their drawbacks, I find it unfair to accuse either of them of not supporting their earlier products after releasing a new one. Plus, the unified driver approach taken by both is great for those of us responsible for multiple machines with different cards.

 

[LocutusX]

Originally posted by: Genx87
Whoa, ATI is taking that hack for Doom3 from the internet and putting it into their drivers?

Interesting...............

Well, that *hack* was created by an ATI employee anyways.


Edit: err, I see others have already pointed that out.

Anyways, as far as application detection goes... is it just blind *.EXE checking, or does it check checksums, stuff like that? Would a NO-CD patch be able to thwart it?

 

[Steve]

Originally posted by: JBT

Originally posted by: Lonyo

Originally posted by: Gamingphreek
I think it is referred to as 5.0 not 4.10 as 4.10 is the same as the 4.1's .

-Kevin

Err, no.
4 = year 04
3 = years 03
eg: last years drivers were all 3.x, because they were from 2003.
This years will all be 4.x because they're 2004.
Next years will be 5.x, for 2005.
The x is the driver release.
3.1 means the first driver release in 2003.
3.9 means 9th release, 2003
3.10 means 10th driver release 2003.
4.1 means 1st release, 2004.
4.10 means 10th release, 2004.

It makes sense.
5.1 will be first release in 2005.

I'm 90% sure this is correct.

You are right im 100% sure.

I agree with JBT, I believe ATi release 10 driversets per year, though I've heard they may do 12 this year.

 

[PrayForDeath]

Originally posted by: sm8000

Originally posted by: JBT

Originally posted by: Lonyo

Originally posted by: Gamingphreek
I think it is referred to as 5.0 not 4.10 as 4.10 is the same as the 4.1's .

-Kevin

Err, no.
4 = year 04
3 = years 03
eg: last years drivers were all 3.x, because they were from 2003.
This years will all be 4.x because they're 2004.
Next years will be 5.x, for 2005.
The x is the driver release.
3.1 means the first driver release in 2003.
3.9 means 9th release, 2003
3.10 means 10th driver release 2003.
4.1 means 1st release, 2004.
4.10 means 10th release, 2004.

It makes sense.
5.1 will be first release in 2005.

I'm 90% sure this is correct.

You are right im 100% sure.

I agree with JBT, I believe ATi release 10 driversets per year, though I've heard they may do 12 this year.

ATI actually release 12 driver sets per year, the first digit in their naming scheme stands for the year and the second for the month, just like what Masrsumane stated before.

 

[Mk1980]

Originally posted by: ronnn
I thought the arifacting only happened with early versions of the humus tweak? Anyways it does not seem like much of a big deal in terms of general improvement for all games, bit nice to have control. Now a general IQ review - with all cards in major games would be nice. :beer:

Hi , can you give me a link to latest humus tweak for Doom3? thank you a lot if you can

 

[BFG10K]

He is talking about adaptive anisotropy which the r3xx doesn't support, only the rv3xx line and r420 cards do.

Uh...what? Every Radeon ever made uses adaptive AF.

There was an interview over at Beyond3d and he didnt seemed terrible thrilled about it and said it produced a lower IQ than what was intended.

Carmack in general doesn't like application detection or shader subsitution.

 

[gururu]

Originally posted by: Mk1980

Originally posted by: ronnn
I thought the arifacting only happened with early versions of the humus tweak? Anyways it does not seem like much of a big deal in terms of general improvement for all games, bit nice to have control. Now a general IQ review - with all cards in major games would be nice. :beer:

Hi , can you give me a link to latest humus tweak for Doom3? thank you a lot if you can

the latest is actually a more fully tested version of the tweak and is already in 4.9 drivers.

 

[LocutusX]

Originally posted by: gururu

Originally posted by: Mk1980

Originally posted by: ronnn
I thought the arifacting only happened with early versions of the humus tweak? Anyways it does not seem like much of a big deal in terms of general improvement for all games, bit nice to have control. Now a general IQ review - with all cards in major games would be nice. :beer:

Hi , can you give me a link to latest humus tweak for Doom3? thank you a lot if you can

the latest is actually a more fully tested version of the tweak and is already in 4.9 drivers.

I don't believe so. I still get a 3.5fps boost in timedemo with Humus' tweak file installed. I am indeed using Catalyst 4.9 Final.

 

[Mk1980]

Originally posted by: gururu

Originally posted by: Mk1980

Originally posted by: ronnn
I thought the arifacting only happened with early versions of the humus tweak? Anyways it does not seem like much of a big deal in terms of general improvement for all games, bit nice to have control. Now a general IQ review - with all cards in major games would be nice. :beer:

Hi , can you give me a link to latest humus tweak for Doom3? thank you a lot if you can

the latest is actually a more fully tested version of the tweak and is already in 4.9 drivers.

you are right I get also up to 4fps with humus tweak and another 3fps with this beta driver hotfix, which includes oficially or unoficially CATALYST AI!!!!!!!

http://www.ati.com/support/infobase/4649.html

download it, Doom3 runs now Awesome on my 9800pro 128mb microstar, 416,5-725 frequencies of my card, and this humus tweak which I have stopped that artifacting, and allow me higher clock speeds
http://www.beyond3d.com/forum/viewtopic.php?t=14967
this is link to latest humus tweak