nvidia + amd performance

bos_mindwarp · Posted: Wed Oct 23, 2002 12:36 am Post subject: nvidia + amd performance

Graphics: ASUS V8440 (geforce4 ti-4400 128Mb)
CPU: Athlon-XP 1600+
Mobo: MSI K7T266 Pro2-RU
RAM: 512 Mb PC2100 DDR

gentoo-1.4_rc1
CFLAGS='-O3 -march=athlon-xp -pipe -fomit-frame-pointer'

glxgears -info:
GL_RENDERER = GeForce4 Ti 4400/AGP/3DNOW!
GL_VERSION = 1.3.1 NVIDIA 31.23
GL_VENDOR = NVIDIA Corporation
...

I get around 3900 FPS

isn't that bad? would it be better if nvdriver used SSE instead of 3DNow! ?

taskara · Posted: Wed Oct 23, 2002 2:28 am Post subject:

don't know if you can get it to use sse instead of 3dnow!, but try it.

I get 1500 on p3 1ghz with gf2mx, so 3600 sounds about right.

on my amd 2000+ with gf3 ti, I think I got 4000
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helmers · Posted: Wed Oct 23, 2002 6:07 am Post subject:

No, it doesn't use sse as of yet. The windows version does, so we can probably expect nvidia to include support for it in the future.

You could change your CFLAGS to
CFLAGS='-O3 -march=athlon-xp -pipe -fomit-frame-pointer -mmmx -m3dnow -msse',

but I don't know if it will make a differnce. And it certainly don't help with the nvidia drivers, it's nvidia who will need to fix things.

taskara · Posted: Wed Oct 23, 2002 6:16 am Post subject:

P-Nuts · n00b Joined: 15 Oct 2002 Posts: 31

Graphics: Leadtek 850? (geforce4 ti-4200 64Mb)
CPU: Athlon-XP 2000+
Mobo: KX7-333
RAM: 512 Mb PC2700 DDR

gentoo-1.4_rc1
CFLAGS='-O3 -march=athlon-xp -pipe -fomit-frame-pointer -msse -m3dnow -mmmx -mpfastmath=sse'

glxgears gets me about 4100 FPS

I suppose my faster processor must make the difference. Okay, I have less graphics memory, but glxgears doesn't exactly use many textures...

bos_mindwarp · Posted: Wed Oct 23, 2002 7:06 pm Post subject:

ok so im green then.
i was alarmed a bit because some programs use benchmarks and fastest result usualy is sse (xine?)

and yes, that nvidia-linux relationship could be better, i cannot try 2.5.x kernels because nvidia doesnt support development kernels.

but on the other i don't have use sucky "nv" drivers, which, btw, don't work with my geforce4

well nothing is perfect.

taskara · Posted: Wed Oct 23, 2002 10:48 pm Post subject:

even tho nvidia close their drivers, their cards are still the best for linux, no doubt - I will not use anything else but.

so maybe that says something about other opensource supporting manufacturers... ?
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chh · Posted: Thu Oct 24, 2002 7:09 am Post subject:

Hi,

as far as I know the CPU doesn't have any effect on the performance in glxgears (at least I got the same result with a PII 400 and an Athlon XP1800+ with the same card).

sev_ · n00b Joined: 26 Sep 2002 Posts: 64 Location: California

it probably has something to do with the cpu, since three gears isn't exactly pushing the graphics card to its fillrate.

just for comparison, i got this:
11163 frames in 5.0 seconds = 2232.600 FPS

I have an athlon xp 1600+, vanilla gf3, kt333 mobo, and 512mb pc2100.