2.4 pre-beta speed improvement on 460 gtx

[Jaberwocky]

I think that there may be a bigger problem coming down the road.

the Fermi architecture is taking over and is appearing in the next range of 5XX raange of cards.

Does it therefore mean that Octane will take a performance hit on these cards as well?

and what happens once the older GF100 cards with the higher number of Warp schedulers dissappear from the market IE GTX 465/470/480.

Perhaps as has been said in the link post above.Refractive needs to consider this when remaking the kernal.

[Jaberwocky]

Actually scrub that last remark made by me

the GF110 architecture as used in the GTX 570/580 looks a lot more like the GF100 architecture that is used in the 470/480 so Octane should not be affected to much

See Link

http://www.anandtech.com/Show/Index/400 ... ce-gtx-580

[t0m4sk0]

I think that there may be a bigger problem coming down the road.

the Fermi architecture is taking over and is appearing in the next range of 5XX raange of cards.

Does it therefore mean that Octane will take a performance hit on these cards as well?

and what happens once the older GF100 cards with the higher number of Warp schedulers dissappear from the market IE GTX 465/470/480.

Perhaps as has been said in the link post above.Refractive needs to consider this when remaking the kernal.

GTX 560 is gf 114 and 384cuda core /48 = 8 block

GTX 580 has 512 and 512 / 48 = 10,6666 block so seems to be that 580 has only 32 cuda core per block

gtx 560 is wrong choice despite 2 gb version

gtx 580 is more powerfull then 2 x 460 (2x224 vs. 512)

[san]

gtx 560 is wrong choice despite 2 gb version

gtx 580 is more powerfull then 2 x 460 (2x224 vs. 512)

check it: http://www.refractivesoftware.com/forum ... =40&t=5046

not only one 580 is (as of now) more powerful than 2x 460 2GB but it is also more 'spacious' too with the 3GB version

[Timmaigh]

gtx 560 is wrong choice despite 2 gb version

gtx 580 is more powerfull then 2 x 460 (2x224 vs. 512)

check it: http://www.refractivesoftware.com/forum ... =40&t=5046

not only one 580 is (as of now) more powerful than 2x 460 2GB but it is also more 'spacious' too with the 3GB version

Awww, fuck!
Sorry for the profanity, but i did not see this coming and made some bad purchase choices in last few months....
first i7 980x, which i do not need now, as i switched to Octane (though for Vray HD interior render 20 minutes FTW)...then i bought Gainward GTX460 1GB, then sold it and got Gainward GTX460 2GB and then another one.... by the way GTX 470 was already available for the same price as the 460, when i bought second one...
but it still felt as reasonable choice, given the circumstances...i thought i am going to have 672 CUDA cores, can turn one card off to prevent locking off interface if needed, 2GB RAM...simply epic win...
however as it seems now, that there is not the expected 1/3 performance increase with new CUDA probably cause of the superscalar nature of 460s internal design, i am stuck with the same numbers of cores as on one 470, not to mention when both cards are under load, they scream like crazy and the upper one does have 90 degrees C.... and now i can have one card with 512 shaders, great clocks and 3GB of videoRAM for perhaps 100 EUROs more.... or maybe in fact the same amount of money, cause i lost about 100 EUROs on sale of the initial 1GB version of GTX460...

I am going to kill myself now

[more3D]

@Timmaigh:

I feel with you! I have ecaxtly the same issue here. Buying two 460s was a bad idea.- But it was and still is recommended in this forums for some reason. hmmm. I was hoping to get those 672 CUDA cores in sum.

[Timmaigh]

@Timmaigh:

I feel with you! I have ecaxtly the same issue here. Buying two 460s was a bad idea.- But it was and still is recommended in this forums for some reason. hmmm. I was hoping to get those 672 CUDA cores in sum.

I suppose Radiance is not aware of this 3GB version of 580 yet. I was not as well until few hours ago.

[Jaberwocky]

I suppose this is the price we pay for being on the bleedin edge of Rendering !

[matej]

So, now with CUDA 3.2 the GTX 460 uses all of it's cores (which previously didn't), but for some technical / architectural reasons the speed increase is only marginal, not nearly 33%?

Is that right?

[san]

Awww, fuck!

[...]

I am going to kill myself now

I took the liberty to edit your post and show only the most relevant lines

So sorry to bring 'bad news', but few months ago i nearly decided to trade two 470's for two 460 2GB... glad they weren't in stock then so i only sold one (before the price plummeted down like crazy) and waited, but then went busy for other things and only recently get back to Octane, and i was going to put my bet on the to-be-released-next-week GTX 560 2GB when i read about its possible problem with Octane (being similar to GF104 etc) ... and then this news come in rather unexpectedly before i make any bad purchase choice... Oh wait i'm not cheering you up this way

Well seriously i think if you've already used these cards for long enough then they will have paid themselves.. I actually bought two GTX 470's last April and wasn't actually pushing them hard enough for long until their prices were about to go down so it was a lesson for me too: when it comes to technology, don't buy it until you almost can't live without it!