vertex_shader
Banned
Something fishy in pconline review, 8800gts 320mb never was so slow against the 8800ultra in low resolutions without filters.
The G92 Architecture Rumours & Speculation Thread
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could this mean 48 TMUs??? wow this is getting really confusing now, lol.
How else would you explain the 24+GTexels/s MT fillrate measured above?
I know CJ described it before, but I'll be damned if that isn't the most ghetto thing I've ever seen in GPU technology...Even more-so than the dreaded dongle, and that was ghetto.
FrankenSLI!
But really, who's going to see it after the few seconds of rolling your eyes on the initial install?
Tho to tell the truth, I'd be a little worried about the life span of the one stretched the furthest there. It doesn't look real comfortable.
Silent_Buddha
Legend
Because it doesn't need to be on Monday
Remember that nV generally always relesed a new high-end about twice as fast as the previous gen? That's exactly what you'll see soon and I'm talking single chip solution. Mark my words
Hmm, and here I don't remember a single time when Nvidia's new High End doubled the performance of the previous High End until the 5900 -> 6800 transition. Up til then, you'd be luck to see a 25-30% increase in performance compared to the previous high end.
And since then 6xxx -> 7xxx -> 8xxx hasn't exactly been a doubling of performance each time. Although in certain benchmarks with certain settings you could get a doubling or close to it.
I'm expecting good things from them certainly, but I'll be extremely surprised if they double the performance of the 8800 GTX without going to a GX2 style card and then only in certain cherry picked SLI friendly benchmarks.
Regards,
SB
What do you expect? 8TA/16TF per Cluster?
No, to have more texture-adresses is better.2900guy said:
128SPs@2.4GHz with better usage of MUL for general shading could give this factor 2 over a 8800GTX, I would think.
Also memory-clock is supposed to rised up much: 1.4GHz+.
This could end in a nice perfromance, through synergy-effects who I also observed at GPUs.
Quite impossible to happen, but the numbers points out, that attribute interpolation is still a "shared" commodity. Bleh!What do you expect? 8TA/16TF per Cluster?
At least, they would make INT op's single cycle, already.
That's interesting certainly. I have to wonder though why? Must be cheap to implement - from the benches so far there doesn't really seem to be a benefit (of course, not counting the fill rate test itself). Compared to the competition even only 28 of the old units would look like plenty (ok so R600 and presumably RV670 can actually process 32 texture addresses per clock (and at a higher clock than G80/G92), but can only filter 16). 56 just looks ludicrous - and obviously, like the 8600 cards, it can't reach its theoretical throughput in the fill rate test (would have been 33.6MTex/s).
Good opportunity for brilinear optimizations - not sure though it would really help that much.
i knew there was something up with texel fillrate after seeing that chineese review. i knew getting numbers like that with just 16 tmu would be impossible. it also explains how the gap between the gtx and gt increases as resolution goes up as the gt is obviously pixel fill rate limited at those high res. now dont understand, u guys are saying it has 56 tmu but cant reach this level for fill rate because it only filters 28?
vertex_shader
Banned
oh i see. now can u please explain to me why the g92 suffers from the relatively low efficiency?
Bandwidth limitation or the shaders are not fast enough to feed this 56 texture-adressers with coordinates.
But since nobody would play on this card without trilinear or 2xbi-AF filtering it is irrelevant and TAs could used for some future stuff like vertex-texture-fetches.
ok so let me see if i get this. the g92 has 56 tmu, but due to something which i dont understand exactly, its only performing at around 75% of its theoretical fill rate, where as the G80 is about 95% efficient. so something is preventing the g92 to reach same efficiency as a G80. can u explain what this "something" is? also, did nvidia do this on purpose as they didnt want the 8800 gt to get any closer to the gtx than it already is? or because of manufacturing problems?
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