RSX = Stream Processor!?!
- Thread starter "Nerve-Damage"
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Titanio said:I guess RSXs arrived post-December, then..
All I really want to know is if the thing is exactly what was announced at E3 or if it changed subsequently. I mean they did give a reasonable amount of info at E3, if you wanted to take it at face value.
More like post-January but yes indeed. What was disclosed at E3 is still true but obviously not all inclusive.
And they did improve on a lot of things, but like I said in an evolutionary way. I'm mostly excited about the software side of things, since Sony has decided to provide a down-to-the-metal API which makes me very happy.
Evolutionary huh?It's starting to sound like the G71.Yeah.An improvement with 32real pipielines minus some unwanted feature with some customizations.Give and take....
You did mentioned post Jan..did you?I am pretty certain now that the RSX is somewhat identical to the G71 with 90nm process and lower clock rate just like the R580 over the R520.
You did mentioned post Jan..did you?I am pretty certain now that the RSX is somewhat identical to the G71 with 90nm process and lower clock rate just like the R580 over the R520.
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hugo said:
I'm not trying to put words in anyone's mouth, but to me 'evolutionary' has meaning beyond and unrelated to an expansion of hardware within a current architecture, ie I don't think he was speaking to the amount of pipes whatsoever, rather the architecture of the chip itself. I think we walk away from it with, 'RSX is an evolution on current GPU trends.' To me that says maybe there's a little more to it than those of us that were expecting a straight G70/G71 'port,' and less to it than those that were expecting GPU's with SPE's attached and such.
Hey, I was just guessing."Evolutionary" unlike "revolutionary" implies something which is next step from the current gen of GPUs.Exotic would mean something which is radical such as UMA like the Xenos.I came to the conclusion that the RSX is a customized G71 because if you were to put some puzzle pieces together it really sounds possible.
Similarities between the G71 and RSX
1)Both are on 90nm process
2)Their tape out date isn't confirmed but both are expected to be announced around the same time with Sony and Nvidia currently keeping extremely quiet about their plans.
3)The G71 is Nvidia's answer to the R580 and a customized one is well positioned to compete with the Xenos.
4)Information about the G71 is still relatively weak at the moment.How will 32 full pipelines impact on performance?A G71 running at 550mhz is > than the 7800GTX 512mb?
I did not say that the RSX = G71.I mentioned a customized one.
Similarities between the G71 and RSX
1)Both are on 90nm process
2)Their tape out date isn't confirmed but both are expected to be announced around the same time with Sony and Nvidia currently keeping extremely quiet about their plans.
3)The G71 is Nvidia's answer to the R580 and a customized one is well positioned to compete with the Xenos.
4)Information about the G71 is still relatively weak at the moment.How will 32 full pipelines impact on performance?A G71 running at 550mhz is > than the 7800GTX 512mb?
I did not say that the RSX = G71.I mentioned a customized one.
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hugo said:
Evolutionary could mean low-level changes and tweaks to better fit in PS3. Not necessarily high level changes to pipelines or numbers of pipelines.
Also, a G70 would be "well positioned" to compete with Xenos. ATi classed it in the same ballpark as the R520, which the G70 competes with. Although we shouldn't make this debate a "versus" one.
TurnDragoZeroV2G
Regular
I might suggest going back over exactly what was stated at E3 would be the best basis for any speculation as to how evolutionary and in what areas RSX ends up being, Given Barbarian's comment on that. Might be good to have a compilation of everythign that was stated/presented from back then.
(or not
... and I think removing the word Xenos from this discussion entirely would benefit all those who still have some of their sanity)
(or not
... and I think removing the word Xenos from this discussion entirely would benefit all those who still have some of their sanity)hugo said:You joking?
The G70 wasn't based on the 90nm process.If you recall, when did Nvidia last announced the G71?Wasn't that around post Jan 2006?The G70 is dated.
Eh?
The G71 is likely a G70 shrunk to 90nm with more pipes and maybe slight modifications. That's why it's a G71, not a G79 or G80
G7x tech is "mature" but certainly it's also very effective.hugo said:You never know the extra pipelines could be the key factor in winning the console wars!!Who knows
ATi compared the G70 with the R520 because they wanted their R580 to be in another league.
My point is, architecturally there's likely little to seperate a G70 from a G71. The biggest difference with the latter is that there's "just" more of it.
Extra pipes would be nice to have, but I think if they are present in RSX, they're there for redundancy.
!eVo!-X Ant UK
Banned
I think Sony has paid Doc Brown loads of £££ to stick a Flux Capacitor in there
Mintmaster
Veteran
$20 says those "3+ years" includes development of the NV40/G70 architecture. borntosoul has it down perfectly:!eVo!-X Ant UK said:
I don't know why you PS3 supporters are so upset about this. G70 is a very good processor. Clock for clock and transistor for transistor, it's way faster than R520 and notably faster than R580 in typical gaming scenarios. But even if it is effectively a 550MHz G70, don't expect it to perform like a Geforce 7800GTX 512MB... (see below)borntosoul said:
Well, a 550MHz G70 is 2.1 times the speed of a 400MHz NV40 in pixel shading and texturing, so voila! The only problem is that it has just over half the bandwidth of one of those NV40's.borntosoul said:
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