Re: Nvidia > ATI with Lost Coast and HDR?
- From: "McGrandpa" <McGrandpaNOT@xxxxxxxxxxxxxx>
- Date: Sun, 30 Oct 2005 09:42:58 GMT
"Goforitdude" <user@xxxxxxxx> wrote in message
news:43646c02_3@xxxxxxxxxxxxxxxxxxx
> I'm kinda re-posting this from another thread response I had but think it
> deserves its own thread.
>
> It would appear that nvidia does run better with HDR from what some
> posters have been telling me. The benchmarks I've seen pretty closely
> compare the 6800GT to my X800XT as being somewhat equivalent - except for
> with OpenGL- The 6800GT
> takes the cake for now. From what I've read HDR essentially takes
> advantage of SM3.0 but ATI made it capable of using HDR in SM2.0 so ATI
> cards can take advantage of it. This demo has really discouraged me
> regardless of how "Fancy" valve thinks this is.. Truth to told unless they
> optimize some ATI drivers for this tech I'll be skipping the expansion.
> The systems requirements are just too high to go mainstream at this point!
> Didn't ATI cards run HL2 better than Nvidias???? My 9800 ate it for
> breakfast.
>
> I mean, I ran HL2 on my old 128meg 9800 in 1600*1200 with NO loss of
> frames and now on my beefier x800xt I can barely keep things chugging
> along at 1280*1024!!! To me, this is a step back for valve. Just give me
> the expansion using the same source engine that you used for HL2 and i'll
> be happy playing it in 1600*1200. You can keep your fancy tech for when it
> actually runs good.. Please excuse me if I'm beginning to sound like a
> broken record but even when I disabled the fancy HDR stuff it still ran
> pretty crappy.
>
> Seeing as how ATI paired up with Valve to optimize the HL2 game for ATI
> cards and that it amazed me how great HL2 ran on my 9800 card I kinda feel
> like valve is abandoning it's allegiance to ATI. Maybe I'm just pissed
> that this runs like crap after I upgraded my vid card to play FEAR & Q4
> and that those games run WAY better on my X800 than they did on my 9800. <
> those 2 games were the sole reason for my upgrade- i wasn't planning a vid
> card upgrade until these games game out..
>
When HL2 came out, I was using an FX5900. There were similar beefs in here
from me about Valves choice to cut out the shader model codepath for the FX
series cards. My DX9 card was forced to run in DX8.1 and Valve wasn't going
to change that. Valve chose the codepath that followed the DX9 standard
for floating point math calls of 16 and 24 bit presicion. Nvidias
implementation did 16 and 32 bit precision plus there was some pipe layout
in the FX that was 2 x 4 where ATI's was 1 x 8. Nvidias implementation was
slower even using full 32 bit precision.
This situation is a little different, as ATI simply left support for SM3.0
out until the X1xxx series.
So who's really at fault? Valve for taking advantage of correct use of
what's there TO use, or the hardware people for not putting it in there or
not putting it in right?
Hardware people. This time the shoe is on the other foot, is all.
McG.
.
- References:
- Nvidia > ATI with Lost Coast and HDR?
- From: Goforitdude
- Nvidia > ATI with Lost Coast and HDR?
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