Radeon X1900 hits image quality snag in 3DMark06

Iria · Jan 28, 2006, 06:51 AM

During the preparation of my Radeon X1900 review, I discovered a problem with Radeon X1900 cards in 3DMark06. I meant to mention it in the review itself, but things came down to the wire and I just ran out of time. Here's the deal: in the "Firefly Forest" scene of 3DMark06, Radeon X1900 cards render an image that's not quite right. The problem is visible to the naked eye—that's how I spotted it. The glowing area around the two floating lights in that scene—the "fireflies," I suppose—looks almost as if the colors were dithered on the Radeon X1900. Like most dithering, this visual artifact is most obvious in motion; the area around the lights creeps, crawls, and "fizzes" as the light moves through the scene.
_____________
Read More / Source: The Tech Report

The_Neon_Cowboy · Jan 28, 2006, 10:54 AM

ROFL the driver is 5.13 and its not the best driver wich will be CAT 6.2 offical

also doesnt it look like the X1900 gave more detail, guess better Iq is a bug
now lol' jk no really compair the two pics...

#1
http://www.techreport.com/reviews/20...7800gtx512.png

#2
http://www.techreport.com/reviews/20...-rx1900xtx.png

#3
http://www.techreport.com/reviews/20...m-rx1800xt.png

which looks better? #2 so how do we know it not the X1800 and 7800 are in error?

Sandok · Jan 28, 2006, 11:46 AM

What are you blabbing about

? The X1900XTX is in fault duno how you can deny that... And wanna know which is in fault, run 3Dmark06 urself.

No_Style · Jan 28, 2006, 05:47 PM

Quote:

Originally Posted by The_Neon_Cowboy

ROFL the driver is 5.13 and its not the best driver wich will be CAT 6.2 offical

also doesnt it look like the X1900 gave more detail, guess better Iq is a bug
now lol' jk no really compair the two pics...

#1
http://www.techreport.com/reviews/20...7800gtx512.png

#2
http://www.techreport.com/reviews/20...-rx1900xtx.png

#3
http://www.techreport.com/reviews/20...m-rx1800xt.png

which looks better? #2 so how do we know it not the X1800 and 7800 are in error?

Quote:

I pinged ATI to see what they had to say about this problem, and they confirmed that were able to duplicate it themselves. They said that the image problems are caused by a bug in the compilation of the shadow shader on the Radeon X1900. They explained that this shader is different than the one used on either the the X1800 or the GeForce cards because it "employs both Fetch4 and 24-bit DST" in order to best take advantage of the X1900's capabilities.

Sure enough, the artifacts don't appear on the Radeon X1800 XT, so ATI's explanation seems plausible.

Pixel shader programs are compiled in the graphics driver, of course, so ATI should be able to fix the problem with a driver update, and that's exactly what they expect to do. We don't yet have any ETA on the fix, but ATI claims it should not adversely affect performance. We'll have to see about that.

Please read the 2nd half of article next time. Even ATI has admitted to the fault.

mike2h · Jan 28, 2006, 06:22 PM

classic neon

. as long as it is not noticeable in games(hopefully it wont be), who cares.

The_Neon_Cowboy · Jan 28, 2006, 08:19 PM

that not what I'm saying, the driver the released for the X1900
is based on 5.13 so weather there is a issue or not is not really
in question "old drivers" new bechmark or game useally = issues
is no suprise. The real driver to look for would be cat 6.2 offical
wich user just have to wait... same for all ATI users

no seriously look at the two image side by side, I dunno about but
the one that is said to be messed up looks like it has more detail does
it not? here lets let photoshop do the talking...

compair.lossless..png

errous or not the expected result it does appear to have more detail
aka what thier calling artifacting thus actually looks better... IMO.. BTW
M2H I'd say the same thing if the 7800's looked like that...serouly look
at the detail ground looks more realistic with these "artifacts"

Any one notice the missing tail in the X1800XT image? there a frine
difference you can only see by fliping threw the uncompressed image
back and forth quickly...all three imaged has sizeable differences

funny though the ATI images and bechmarks thier site did there all done
with 8-203-3-060104a-029367E wich is 8.203 aka 5.13 (wich came out
two full months ago) again probubly has something to do with it... as with
current drivers I have no missing till on my X1800 so I'd be look at the old
drivers more at fault then anything... but then again that the trouble with a
hard lauch... lets look again when 6.2 rolls out wich ill have the proper /
better support for X1900

Quote:

Originally Posted by No_Style

Please read the 2nd half of article next time. Even ATI has admitted to the fault.

nameless source / no source name = good as no source at all .

mike2h · Jan 28, 2006, 09:45 PM

we will see what happens with their next driver release.

**dj_stick** · Jan 28, 2006, 10:48 PM

just wait for the drivers, and hell, it's a benchmark, since when do they count towards much apart from bragigng rights and egos anyway?

IvanV · Jan 28, 2006, 11:24 PM

We'll see what the future drivers will bring. I must say that just looking at the pictures one can't really say which one is wrong: looking at the ground around the green firefly, it does seem to me that the 1900 screenshot has more detail, just like Neon said, but if ATi says that it's a bug then that's probably true. Still, I don't think that this deserves a big fuss.

Necrosis · Jan 29, 2006, 02:26 AM

I don't see what the big deal is either. Every time a new version of this bench comes out there is always problems.

No_Style · Jan 29, 2006, 02:34 AM

I believe Tech Report/Damage's intention for the article is to bring it to light. Like a "Oh, BTW I noticed an IQ problem with 3DMark06 and X1900 cards". Not a "OMFG! IQ problemz h4x0rz." type of deal.

I also find Tech Report to be a credible review site which just tells it like it is. They're not petty to stoop to a level of conjuring up stories for the sake of hits to their site.

SFOSOK · Jan 29, 2006, 02:55 AM

That second picture listed is probably not what they intended it to look like. A bunch of little black dots does not make a picture look better, sorry.

nForcer · Jan 29, 2006, 03:21 AM

heh, makes me proud to run nVidia. :P

>GSXR<mrbusa · Jan 29, 2006, 04:17 AM

Quote:

Originally Posted by The_Neon_Cowboy

that not what I'm saying, the driver the released for the X1900
is based on 5.13 so weather there is a issue or not is not really
in question "old drivers" new bechmark or game useally = issues
is no suprise. The real driver to look for would be cat 6.2 offical
wich user just have to wait... same for all ATI users

no seriously look at the two image side by side, I dunno about but
the one that is said to be messed up looks like it has more detail does
it not? here lets let photoshop do the talking...

compair.lossless..png

errous or not the expected result it does appear to have more detail
aka what thier calling artifacting thus actually looks better... IMO.. BTW
M2H I'd say the same thing if the 7800's looked like that...serouly look
at the detail ground looks more realistic with these "artifacts"

Any one notice the missing tail in the X1800XT image? there a frine
difference you can only see by fliping threw the uncompressed image
back and forth quickly...all three imaged has sizeable differences

funny though the ATI images and bechmarks thier site did there all done
with 8-203-3-060104a-029367E wich is 8.203 aka 5.13 (wich came out
two full months ago) again probubly has something to do with it... as with
current drivers I have no missing till on my X1800 so I'd be look at the old
drivers more at fault then anything... but then again that the trouble with a
hard lauch... lets look again when 6.2 rolls out wich ill have the proper /
better support for X1900

nameless source / no source name = good as no source at all .

no offense neon but reading this post gave me motion sickness.do you have to write in another language and translate to english?

man i cant believe these cards.its like a new line every six months.they got you guys and girls hook line and sinker.i am just now buying an x850xt pe AGP, USED, for 250.00 from drakon and i think that is to much to spend.you are all NUTZ

dont get me wrong i wish i could have one but in order for that i guess i would have to go pcie,ya right.it would cost about 1000.00 just in pc parts without the card added to even take advantage of its capabillities.i wonder what the NEW line next month will be because X2000 sounds really stupid,ill bet they switch up to something else like the X420RGT

Jan 28, 2006, 06:22 PM	#5
mike2h DriverHeaven Extreme Member Join Date: Nov 2002 Location: norcal Posts: 6,483 Rep Power: 91 System Specs	classic neon. as long as it is not noticeable in games(hopefully it wont be), who cares. __________________

Jan 28, 2006, 09:45 PM	#7
mike2h DriverHeaven Extreme Member Join Date: Nov 2002 Location: norcal Posts: 6,483 Rep Power: 91 System Specs	we will see what happens with their next driver release. __________________

Jan 28, 2006, 11:24 PM	#9
IvanV HH Assassin Guild Member Join Date: Dec 2004 Posts: 5,917 Rep Power: 336 System Specs	We'll see what the future drivers will bring. I must say that just looking at the pictures one can't really say which one is wrong: looking at the ground around the green firefly, it does seem to me that the 1900 screenshot has more detail, just like Neon said, but if ATi says that it's a bug then that's probably true. Still, I don't think that this deserves a big fuss. __________________ If anyone has Portal 2 and hasn't played the co-op and wants to do me a favour, let me know (PM me or whatever).

Jan 29, 2006, 02:34 AM	#11
No_Style Styleless Wonder Join Date: Jun 2002 Location: Ottawa, Ontario Posts: 6,034 Rep Power: 0	I believe Tech Report/Damage's intention for the article is to bring it to light. Like a "Oh, BTW I noticed an IQ problem with 3DMark06 and X1900 cards". Not a "OMFG! IQ problemz h4x0rz." type of deal. I also find Tech Report to be a credible review site which just tells it like it is. They're not petty to stoop to a level of conjuring up stories for the sake of hits to their site. __________________ "The Best Style Is No Style" Specifications Here

Jan 29, 2006, 02:55 AM	#12
SFOSOK 939 Goin Strong Join Date: Jul 2005 Location: Ontario Posts: 7,033 Rep Power: 90 System Specs	That second picture listed is probably not what they intended it to look like. A bunch of little black dots does not make a picture look better, sorry. __________________ Warning - Explicit Content Preceeding METAL!!

Jan 28, 2006, 06:51 AM	#1
Iria DriverHeaven Extreme Member Join Date: Apr 2004 Posts: 7,275 Rep Power: 89	Radeon X1900 hits image quality snag in 3DMark06 During the preparation of my Radeon X1900 review, I discovered a problem with Radeon X1900 cards in 3DMark06. I meant to mention it in the review itself, but things came down to the wire and I just ran out of time. Here's the deal: in the "Firefly Forest" scene of 3DMark06, Radeon X1900 cards render an image that's not quite right. The problem is visible to the naked eye—that's how I spotted it. The glowing area around the two floating lights in that scene—the "fireflies," I suppose—looks almost as if the colors were dithered on the Radeon X1900. Like most dithering, this visual artifact is most obvious in motion; the area around the lights creeps, crawls, and "fizzes" as the light moves through the scene. _____________ Read More / Source: The Tech Report

Jan 28, 2006, 10:54 AM	#2
The_Neon_Cowboy HardwareHeaven Extreme Member Join Date: Dec 2002 Location: U.S.A. Posts: 16,009 Rep Power: 92 System Specs	ROFL the driver is 5.13 and its not the best driver wich will be CAT 6.2 offical also doesnt it look like the X1900 gave more detail, guess better Iq is a bug now lol' jk no really compair the two pics... #1 http://www.techreport.com/reviews/20...7800gtx512.png #2 http://www.techreport.com/reviews/20...-rx1900xtx.png #3 http://www.techreport.com/reviews/20...m-rx1800xt.png which looks better? #2 so how do we know it not the X1800 and 7800 are in error? __________________

Jan 28, 2006, 11:46 AM	#3
Sandok DriverHeaven Extreme Member Join Date: Jul 2004 Posts: 9,472 Rep Power: 0	What are you blabbing about ? The X1900XTX is in fault duno how you can deny that... And wanna know which is in fault, run 3Dmark06 urself.

Jan 29, 2006, 02:26 AM	#10
Necrosis HardwareHeaven Extreme Member Join Date: May 2002 Location: Ohio Posts: 8,838 Rep Power: 131 System Specs	I don't see what the big deal is either. Every time a new version of this bench comes out there is always problems.

Jan 29, 2006, 03:21 AM	#13
nForcer Twice the fun! Join Date: Jul 2002 Posts: 1,404 Rep Power: 0	heh, makes me proud to run nVidia. :P