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Re: doom3 slowness

On Fri, Oct 08, 2004 at 05:51:36PM +0000, Helge Titlestad wrote:
> Kaneda Langley wrote:
> >hi all, i'm a bit of a gamer and doom3 performance is low too low to be 
> >playable :(
> >running debian pure64 with the nvidia 6111 drivers, kernel 
> >2.6.8-3-amd64-k8, Geforce FX5200, 1GB ram, AMD64 2ghz.
> >I have quake3 running stable at 120fps
> >doom3 runs at 12fps.
> The FX5200 may just not be up for it. Afaik, FX5200 is basically a 
> GF4MX440 upgraded to support DX9 features. A good GF3 card could quite 
> possibly outperform your FX5200.

No it is truly a GeForce FX chip, but a very minimal one.  Same basic
design as the 5600/5700 supposedly (4 pipelines) but much slower core
and memory clocks,  The 5800 had 8 pipelines and the 5900 doubles the
memory bus to 256bit (helping the meomry starved pipeines).  The 6800
(GT and better) have 16 pipelines while the base 6800 has 12.  Memory
bandwitdh matters a lot to these high end cards.  The 5200 with 250MHZ
core and memory (128bit) just won't match a 5900 at 400Mhz Core 425MHZ
memory (256bit) and 4x2 pipelines or a 6800 ultra with 400Mhz core and
550MHz memory (256bit) and 16 pipelines.  The FX5200 has all the
features, but only a few pipelines and very slow clockrates and narrow
memory bus.  It's not a high end gaming card.  It will do all the nifty
FX effects, at low resolution and slower frame rate.  An MX card won't
even do the effects, never mind the speed.

> Doom 3 performs very well on my GF6800 GT, and if you really are a bit 
> of a gamer I'd recommend investing in it. (My system is pure64, 512MB 
> RAM, athlon64 3000+, 6111 drivers, basically the same as yours except 
> the video card.) I haven't had any problems with the AGPGART in the 
> stock kernel.
> Of course, 12 fps is _really_ bad, so there might be some other problem. 
> I would expect it to do ~30fps with the lowest settings.. Make sure 
> there aren't any FSAA-stuff turned on in nvidia-settings and stuff.

Well I have an FX5200 in this machine (Barton XP 2800+, 1GB ram, nForce2
dual channel, 120G WD SATA), and I am trying doom3 in linux and at
640x480, medium quality (I have 128M ram on the card) I get about 8 or
9fps with the default advanced settings (most things on, except anti
aliasing) and about 11 to 13 with all advanced settings off.  If I go
view a mostly dark empty wall in the game I might get 25 to 35fps.  So I
think you are seeing excactly what the performance of an FX5200 is
supposed to be in a high polygon game like doom3.

Lennart Sorensen

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