View Full Version : Think the Nv40 will offer 8 Floating Point Shader Units?
ChrisRay
08-27-03, 03:59 PM
Going by that its probably gonna be a 8 pipeline card, I am guessing the card itself would have 8 FP units.
Do you think its possible Nvidia wont dedicate them as as texel addressing units, Ala Nv30/Nv35?
And if so with a high enough core clock. Would this matter.
What's a pipeline?
8 FP units? Are you saying it's a few times slower than the NV30?
Why would you want texel addressing units anymore?
Hehe, yes, I'm just having some fun confusing people. All that I said there is justified though ;)I can't comment on the first one, because then I'd have to kill you.
As for the second one, the NV3x really are small 'FP processors' with a few smaller FP units inside them, so the term 'unit' is not clear enough IMO.
And for the third one, it seems fairly obvious to me and others that using general purpose units for addressing is the way of the future.
Uttar
Geforce4ti4200
08-27-03, 08:31 PM
the nv40 is rumored to be 8x2 while the Loci at 12x1
is it possible to make it any number, then why not 13x1? must be it even numbers or a perfect square such as 1, 2, 4, 8, 16, 32........
GlowStick
08-27-03, 08:58 PM
Originally posted by Geforce4ti4200
the nv40 is rumored to be 8x2 while the Loci at 12x1
is it possible to make it any number, then why not 13x1? must be it even numbers or a perfect square such as 1, 2, 4, 8, 16, 32........ Those numbers seem completely made up and wishfull thinking.
ChrisRay
08-28-03, 02:15 AM
Originally posted by GlowStick
Those numbers seem completely made up and wishfull thinking.
Shrug I heard the Loci was a 6x2 heh
Geforce4ti4200
08-28-03, 03:34 AM
Originally posted by ChrisRay
Shrug I heard the Loci was a 6x2 heh
then itll be no better than a radeon9800 pro :mad:
Ninja Prime
08-28-03, 05:26 AM
12x1 and 6x2 are the same thing tards. ;)
Just like Nv3x is 8x1 and 4x2.
The Baron
08-28-03, 10:55 AM
Originally posted by Ninja Prime
12x1 and 6x2 are the same thing tards. ;)
Just like Nv3x is 8x1 and 4x2.
Erm, no, it can act like an 8x1 in CERTAIN SITUATIONS, but it doesn't in everything.
Originally posted by Ninja Prime
12x1 and 6x2 are the same thing tards. ;)
Just like Nv3x is 8x1 and 4x2. You should be sure you're correct before making a post like that.
This is oversimplified(not taking into account loopbacks and such), but gets the point across
In one texture situations
8x1 does 8 pixels per cycle
4x2 does 4 pixels per cycle
in two texture situations
8x1 does 8 dual textured pixels in 2 cycles
4x2 does 8 dual textured pixels in 2 cycles
in 3 texture situations
8x1 does 8 pixels in 3 cycles
4x2 does 8 pixels in 4 cycles
The Baron
08-28-03, 11:13 AM
Yeah, I was going to use a Traditional Smartass Reply and say, "Well then, if 4x2 and 8x1 are the same thing, then why don't we see 1x8? HUH?!"
Originally posted by The Baron
Yeah, I was going to use a Traditional Smartass Reply and say, "Well then, if 4x2 and 8x1 are the same thing, then why don't we see 1x8? HUH?!"
lol... that would be an engineering marvel from the stone age of gpu's :D
GlowStick
08-28-03, 01:21 PM
Originally posted by The Baron
Yeah, I was going to use a Traditional Smartass Reply and say, "Well then, if 4x2 and 8x1 are the same thing, then why don't we see 1x8? HUH?!" OMG you discoverd BITBOYS secret plan to dominate the market!
ChrisRay
08-28-03, 04:29 PM
Originally posted by GlowStick
OMG you discoverd BITBOYS secret plan to dominate the market!
rofl :angel:
Ninja Prime
08-28-03, 04:32 PM
That's exactly what I was saying steppy, just way over simiplified.
Demirug
08-28-03, 06:07 PM
Uttar, is already playing this game. I will do an additional turn.
8 pipelines are 7 more than all NV3X have.
8 FP Units? NV30 have more than the double number of FP Units and NV35 even more.
Originally posted by Ninja Prime
That's exactly what I was saying steppy, just way over simiplified. No it's not, in the example I showed you, the ONLY time 4x2 was equal to 8x1 was with dual texturing...8x1 was 25-50% faster in the other situations.
Ninja Prime
08-28-03, 09:58 PM
No it's not, in the example I showed you, the ONLY time 4x2 was equal to 8x1 was with dual texturing...8x1 was 25-50% faster in the other situations.
Oh I see now... you mistook my original meaning entirely then. I didn't mean that 8x1 and 4x2 were the same in terms of performance, I meant that like the NV3x functions as 8x1 and 4x2, depending on the situation, it would function as 12x1 and 6x2, depending on the situiation. ;)
Loci is 16x1, and I hold full spec for long time now. Nobody believes me...whatever...
reever2
08-28-03, 10:52 PM
Originally posted by lukar
Loci is 16x1, and I hold full spec for long time now. Nobody believes me...whatever...
as nobody should...
StealthHawk
08-29-03, 02:40 AM
Originally posted by Ninja Prime
Oh I see now... you mistook my original meaning entirely then. I didn't mean that 8x1 and 4x2 were the same in terms of performance, I meant that like the NV3x functions as 8x1 and 4x2, depending on the situation, it would function as 12x1 and 6x2, depending on the situiation. ;)
Yes, but you were talking about Loki. Since when does ATI hardware have the ability to operate like that.
Ninja Prime
08-29-03, 02:47 AM
Yes, but you were talking about Loki. Since when does ATI hardware have the ability to operate like that.
According to one of Uttar's rumors on Loki, that is how it may be, 12x1/6x2 similar to the NV3x, but mo' betta'.
Geforce4ti4200
08-29-03, 04:15 AM
Originally posted by lukar
Loci is 16x1, and I hold full spec for long time now. Nobody believes me...whatever...
link? also how do you know? do you or your friend work for ati? also is 16x1 guaranteed? that would be really impressive and I hope ati does come out with that. 12x1 is ok, 6x2 would suck!
-=DVS=-
08-29-03, 04:56 AM
lukar is bad person he leaks info from ATI :eek: lets ban him ;) :p :D
Originally posted by Demirug
8 FP Units? NV30 have more than the double number of FP Units and NV35 even more.
I guess you mean the units inside the FP processor. If I've understood right, the NV30 pipeline can process four pixel with its four FP sub-processors. But does the NV35 have more than four FP sub-processors?
The terminology is not clear at least for me. I suppose there is one pipeline in NV3X. This pipeline includes a FP processor, that consists of 4 FP sub-processors (at least for NV30), which consist of FP units. :retard: Is this correct? How many FP units are there for NV30/35? Do more units mean less cycles or what?
Demirug
08-29-03, 02:45 PM
There is one pixelpipeline (aka Pixelshader aka Pixelprocessor) that includes many small FP-units. Each of this units work with 4 datasets (pixel) at the same time. The units are very specialized and the most of it can do only one kind of calculation (addition, multiplication, 1/x, ...). All this units are connected together with an complex network of datapaths. Some of this paths works as loopbacks. The network is connect to some FIFOs that work as caches. There is an additional logical layer between the whole pixelshader and the FP-units to make this beast a little less complex.
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