When Tuesday does the G70 NDA expire?

nAo said:
So pixel shaders went up by 50%
more than 25%

I say ~33% (raw Flops) . But it will mainly depend on the shadercode. Anything from 0-100% more speed (per pixelprocessor) is possible. This will give you with the two additional pixelprocessor an factor from 1.5 to 3.0.
 
A pretty useless set of benchmarks at this point really.

Wake me when we get SC:CT, Chronicles of Riddick etc benchmarks. I'm very curious to see HDR performance, as that's where even the Ultra falls on its face right now.

As for everything being CPU limited - well, not everything. I see that big ol' bandwidth limitation rearing its head as well.

AA with alpha textures - didn't expect that though. Very nice.
 
dizietsma said:
http://www.xtremesystems.org/forums/showthread.php?t=66489

Opp's got his watercooling on. His gaming rig does a nice 05 score as well though, that is air cooled.

Nice to see the top oc'ers get some sampling love. :D Yeah, I understand this is as much a symptom of "king of the hill" (or "capture the flag" as Wavey prefers) marketing as anything else. . .but I always like to see excellence in any field rewarded.
 
geo said:
dizietsma said:
http://www.xtremesystems.org/forums/showthread.php?t=66489

Opp's got his watercooling on. His gaming rig does a nice 05 score as well though, that is air cooled.

Nice to see the top oc'ers get some sampling love. :D Yeah, I understand this is as much a symptom of "king of the hill" (or "capture the flag" as Wavey prefers) marketing as anything else. . .but I always like to see excellence in any field rewarded.

True. Also, Sampsa seems to have his up to 525Mhz as well so that is now 4 that have gone to or past 500MHz ( out of 4 ) . I think this means that nvidia can easily do a faster Ultra at say 500Mhz if they wish.

Also, the 1200MHz effective ram seems to be hitting well over 1350, maybe they have improved the RAM, improved the PCB design, improved the power distribution or maybe relaxed the timings a bit ?

http://www.xtremesystems.org/forums/attachment.php?attachmentid=32835
 
dizietsma said:
True. Also, Sampsa seems to have his up to 525Mhz as well so that is now 4 that have gone to or past 500MHz ( out of 4 )

Last I checked in one of the links here, someone had got it up to 549Mhz with watercooling :)
 
dizietsma said:
Also, the 1200MHz effective ram seems to be hitting well over 1350, maybe they have improved the RAM, improved the PCB design, improved the power distribution or maybe relaxed the timings a bit ?

BFG's page, before it was pulled, was advertising theirs at 1300 --so perhaps we'll get an answer to that when someone takes a closer look at what they've done.
 
True, but the result is the same. Each ALU now can do a DP.
You seemed to infer there are now two where there used to be one, which is not true. It's more of an instruction replacement, since both are doing the same number of instructions.
 
Anyone brave the waters over at nVidia's forums or nVnews lately? I'm curious to hear about the reaction of the faithful to the news so far, but I can't bring meself to actually visit those places much anymore.
 
I never said there was one, I said there were two, but each was akin to "half" an ALU since only in combination did they have the full set of SIMD operations. We are all aware of the terminology "shader top/alu top" and "shader bottom/alu bottom" used to refer to this split. The NV4x thus had about sort of a "1.5 ALU" per pipe. Now, the "shader top" part of the NV4x has been upgraded so that it is now capable of pretty much everything the shader bottom is, so one can say that the G70 has 2 full ALUs per pipe, whereas before, it did not.

Now matter how you slice the semantics, the result is the same. 2x the dot-products.
 
digitalwanderer said:
Anyone brave the waters over at nVidia's forums or nVnews lately? I'm curious to hear about the reaction of the faithful to the news so far, but I can't bring meself to actually visit those places much anymore.

They're awaiting B3D's review before passing judgement. :p
 
christoph said:
democoder wrote:
The NV4x had 1 ALU per pipe that was split into 2 half-ALUs

Splitting hairs. I clearly say there are 2 half-ALUs. DaveBaumann uses the "split" terminology too:

DaveB said:
whereas NV40 seems to have taken NV3x's primary ALU and distributed the instructions between the two (with one(?) duplicated) which will give more opportunities to execute two instructions per cycle


The NV4x does not have 2 full ALUs. In totality, it has something more than 1 ALU per pipe if you compare functionality with the R300 or NV3x, but it is not 2. The G70 top/bottom ALUs now have almost identical SIMD functionality (scalar/special ops will still be different probably)
 
Demo, I'm not trying to split hairs and would have been okay with the 1.5 ALU statement. I just didn't get how ALU2 remains unchaged, but only counted as .5 before and 1 now, but I do understand your point. Sorry.

While it obviously has more pipes, it may, like the NV40, only be capable of 1 DP per clock while texturing. So maybe best to say 2x under certain circumstances.
 
digitalwanderer said:
Anyone brave the waters over at nVidia's forums or nVnews lately? I'm curious to hear about the reaction of the faithful to the news so far, but I can't bring meself to actually visit those places much anymore.

Not raving and not sobbing, people with 6800's seem to be thinking of passing. A lot of people are thinking that cpu limitations are much in evidence and so it is not worthwhile

Is the FX-57 out tomorrow ? If so then the FX-57 will surely help the cpu side out. An FX-57 at 3GHz and a 7800GTX at 500/1300 would be a nice match.
 
Rockster said:
While it obviously has more pipes, it may, like the NV40, only be capable of 1 DP per clock while texturing. So maybe best to say 2x under certain circumstances.

But texture instructions are relatively rare in longer shaders so the shared texture address calculation/shader ALU isn't such a huge problem.

Jawed
 
No, I agree. But to that same point, long shaders typically don't need a mad every cycle either. I just think it's more complex than just saying 2x. Certainly you could write a shader that is, but for most code it's an incremental improvement. The compiler should certainly be able to schedule instructions easier now!
 
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