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View Full Version : Just me or does AF performance suck in morrowind with 45.23's?


biggles2120
08-29-03, 12:49 AM
Were previous driver versions this bad? If I turn up the AF any higher than 2x then things get pretty choppy in Morrowind. My specs should be able to handle this game better than it is. Then again, I can't tell the difference between 2x AF in Morrowind and 8x AF other than the performance tanks when I crank it up.

Here are my system specs:

Intel 2.66 533bus
512meg DDR 266
80Gig Maxtor ATA133 7200rpm
Geforce 5900 FX Ultra 256 500/900
Audigy 2

I'm running on a fresh install with all the latest drivers and Morrowind and XP has been tweaked to the max for performance. Did any previous driver versions have better AF performance?

Edit:

I play Morrowind with the following settings:

1600x1200 32bit 85hz
100% View Distance
Shadows Disabled
Pixel Shaders enabled
2x AA and 2X AF

My performance is fine with 8x AF until I get to big cities and then it starts to really chug. If I tone down AF then I get a big performance boost most of my stuttering goes away.

SeriousWorm
08-29-03, 06:49 AM
I have an FX5600 and those drivers and at 2xAA, 8xAF and sharpening @ 800x600 w/ pixel shaders I get pretty good performance... On around 70% view distance I never get below 15fps even in big towns. Also I didn't tweak anything.

Specs -

Athlon XP 1700+
256MB DDR RAM
GFFX 5600 128mb

Everything's at default.

Hanners
08-29-03, 01:34 PM
AF is going to take a big hit on a game like Morrowind, it gives the card a lot of work to do - Even more so at 1600x1200. With AA on as well, I imagine you're getting severely fillrate limited.

Skuzzy
08-29-03, 01:42 PM
AF is being done in software, so if your CPU gets bogged, then AF is going to hurt a lot. With AF being done in software, it could also mena a lot more AGP bus transfers as well, which could hurt too.

Dazz
08-29-03, 02:34 PM
Yeah Morrowind is a highly CPU demanding game.

biggles2120
08-29-03, 03:26 PM
With my Xeon 2.66gz with Hyperthreading enabled my processor usage is usually only at 50-60% utilization on both threads. Even if I set the thread priority to realtime it doesn't really go any higher. Wouldn't this mean that my video card is bottlenecking?

Skuzzy
08-29-03, 03:42 PM
Uh,..DirectX is not multi-threaded.

According to Intel, the hyper-threaded CPU's should only be able to reach about a maximum of 80% utilization each, due to resource conflicts.

Dazz
08-29-03, 03:46 PM
Between a video card and a CPU upgrade you will immensely notice an improvement with the CPU upgrade.

MikeC
08-29-03, 04:55 PM
Although I have yet to try it, the "Morrowind FPS Optimizer" may help.

http://morrowind.nm.ru/Morrowind%20FPS%20Optimizer/

Hellbinder
08-29-03, 06:00 PM
I have an FX5600 and those drivers and at 2xAA, 8xAF and sharpening @ 800x600 w/ pixel shaders I get pretty good performance...

Texture Sharpening only bumps the AF level up one from whatever you have set. At 8x it does nothing.

ChrisRay
08-29-03, 06:05 PM
Originally posted by Skuzzy
AF is being done in software, so if your CPU gets bogged, then AF is going to hurt a lot. With AF being done in software, it could also mena a lot more AGP bus transfers as well, which could hurt too.

Errm. Billinear/Trillinear AF despite being a software solution is going to be a fillrate bottleneck. So it's still done in hardware, It's just not a hardwired AF

Skuzzy
08-29-03, 06:23 PM
I didn't disagree that it was going to be fillrate limited, but there are other factors that will cause AF performance issues with fillrate being one of them.

GlowStick
08-29-03, 06:35 PM
Wowzers, ive seen Morrowind in action and it looks pritty cool.

I belive to say, even if you had a diffrent card, it woudlnt help your situation much, the game is pritty demanding and that may be pushing it to far.

SeriousWorm
08-29-03, 07:02 PM
Originally posted by biggles2120

Edit:

I play Morrowind with the following settings:

1600x1200 32bit 85hz
100% View Distance
Shadows Disabled
Pixel Shaders enabled
2x AA and 2X AF


I suggest you set View Distance to at most 80% since it's makes a big difference, especially in cities. I always have it set to around 50%.

biggles2120
08-29-03, 07:17 PM
"Texture Sharpening only bumps the AF level up one from whatever you have set. At 8x it does nothing."

So I'm running at 2x AF with Texture Sharpening. So I'm really running at 4x AF? This kind of silly as I could just move the slider to 4x AF.

StealthHawk
08-29-03, 08:41 PM
Originally posted by biggles2120
"Texture Sharpening only bumps the AF level up one from whatever you have set. At 8x it does nothing."

So I'm running at 2x AF with Texture Sharpening. So I'm really running at 4x AF? This kind of silly as I could just move the slider to 4x AF.

Basically that is what Texture Sharpening does/used to do. There were a few oddities.

Discussion (http://www.nvnews.net/vbulletin/showthread.php?s=&threadid=7245)

I haven't checked new drivers, although I might in the future. Not really that much point though, considering that I don't have a gfFX and anything NVIDIA does will most likely affect only those cards. Unless someone wants to donate one to me :D

Rytr
08-29-03, 08:59 PM
I ran some tests with the 45.24's in MW and seemed to do OK, only severe slowdowns (no stuttering) at 1600x1200 with 4xAA/8xAF. Did not play extensively tho. I did play quiet a bit in Bloodmoon with the 41.61's and they did very well @ 1024x768, 4xAA/8xAF, no problems noted.