Message boards : Graphics cards (GPUs) : Fermi released
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Now that benchmarks are flourishing all over the net, I hope that someone very soon will put hands on a 470 (or even a 480) and will crunch Gpugrid wus. For sure, gpucomputing isn't part of a "standard" bench... | |
ID: 15992 | Rating: 0 | rate: / Reply Quote | |
Anand says at folding a GTX480 is 3.5 times faster than a GTX285. Impressive! | |
ID: 15993 | Rating: 0 | rate: / Reply Quote | |
Excellent review (as always) from Guru3d at: GTX 480 Review Guru3d | |
ID: 15996 | Rating: 0 | rate: / Reply Quote | |
I'll be sticking with my 216-core GTX260 for now because I can't afford an upgrade, but the specs are incredible. It looks like the card is made using 40nm manufacturing tech, maybe they'll be able to shrink the die to 32nm by the time I have enough to $ get myself one. | |
ID: 15997 | Rating: 0 | rate: / Reply Quote | |
not really excited. Performance wise against my OC'ed GTX275 - from 0% to 50%, mainly - 25-35%. Really not that much. I'm not sure what Anand talking about - just tens %s only. | |
ID: 15999 | Rating: 0 | rate: / Reply Quote | |
Anand says at folding a GTX480 is 3.5 times faster than a GTX285. Impressive! Truly is! But I'll wait for a revision: consumption and heat are too big issues to buy a Fermi now. ____________ | |
ID: 16001 | Rating: 0 | rate: / Reply Quote | |
The heat block on the GTX480 just begs to have a system fan blowing directly onto it. | |
ID: 16003 | Rating: 0 | rate: / Reply Quote | |
I'm not sure what Anand talking about - just tens %s only. When I said "folding" I meant Folding@home. In games it's of course as fast as you said. Regarding power consumption: nVidia is using many more transistors than ATI, that's why their power consumption is naturally higher. Voltage tweaking: with a card like the GTX480 I'd probably consider voltage tweaking.. lowering it to reduce heat, noise and power consumption! There's probably not much room left, though. And I wouldn't increase the voltage without anything less than water cooling, though and Accelero Extreme could manage the heat, if the software doesn't use the card 100% (e.g. Seti) and there's very good case ventilation. BTW, early Q3 ATI releasing 28nm cards (5890 & 5990?) Let's wait and see ;) Sure, it's on some leaked roadmap, but 28 nm is not exactly easier than 40 nm, isn't it? I'll remain sceptical until I see more solid evidence. Besides: I read that ATI plans a refresh around summer. This would still be made at TSMC, as the time to work with GF and to develop their new general purpose processes wasn't enough yet. And 32 nm disappeared from TSMCs roadmaps. So I suppose the refresh will be based on TSMCs 40 nm. And the next release (28 nm, probably 6000 series, since they'd be running out of numbers in the 5000 seriees) would not come until at least a half year after that summer refresh. Whatever they end up doing, it's going to be interesting :) MrS ____________ Scanning for our furry friends since Jan 2002 | |
ID: 16006 | Rating: 0 | rate: / Reply Quote | |
ExtraTerrestrial Apes, | |
ID: 16013 | Rating: 0 | rate: / Reply Quote | |
http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=1626 NVIDIA is limiting the double-precision speed of the desktop GF100 part to one-eighth of single-precision throughput, rather than keep it at half-speed, as per the Radeon HD 5000-series no comments... and a bit more "sugar in the beer" http://www.youtube.com/watch?v=WOVjZqC1AE4 ____________ | |
ID: 16015 | Rating: 0 | rate: / Reply Quote | |
I can not understand from where 3.6 times appearing. I see no reasons for this... But let's wait to see real RAC 480 can provide. It's right there ;) The point is that a GTX480 has "only" about twice as much raw single precision shading power as a GTX285, but this power can be used more efficiently: the increased caches should help to hide memory latency and the parallel execution of different kernels could speed things up tremendously. It all depends on the application, though. And games are not where these features give the most benefit. nVidia is using many more transistors than ATI, so what? they are 5-10% only faster then 5870... The amount of transistors directly results in the much higher power consumption (for such rather similar chips), that's the only reason I mentioned it here. but I got water cooling or Accelero Extreme - why I can do nothing? What do you mean? Regarding your link to the MW forums: that would be a catastrophe for us, but go a long way towards pushing the scientific community towards Teslas. At the same time they'd devalue CUDA, as the end user also benefits from double precision. And anyone who runs mission critical apps is probably already running Teslas anyway. They could achieve a similar market segmentation by disabling ECC on the Geforce cards. And to quote myself: That report looks dodgy. The author seems to be confused about the benefits of IEEE compliance and quotes ATIs cards as having 1/2 the sp speed in dp. It should actually be 2/5, which is 40% instead of 50%. Just because I think it would be a stupid move and messenger is unprecise in other points does not necessarily make it untrue. It's certainly a point to keep an eye on, just don't take it for granted yet. MrS ____________ Scanning for our furry friends since Jan 2002 | |
ID: 16016 | Rating: 0 | rate: / Reply Quote | |
The discussion has split into two threads - and I have a feeling neither side has realised the different mindset being used for the figures and logic in response. | |
ID: 16018 | Rating: 0 | rate: / Reply Quote | |
Guys I do understand what u r talking about. I'm really curious to see real RAC of GTX400 in GPUDRID or F@H or whatsoever, coz these reviews all about fps in games and that's not we are looking for, right? :-) | |
ID: 16019 | Rating: 0 | rate: / Reply Quote | |
So there are two different arguments. But like it or not, they do correlate. How? Many who crunch on GPUDRID.net are said to have middle to high end GPU's. That not everybody has the funds, or interest, in buying a high end GPU, simply to crunch 24/7, brings in mind the motivation to buy a Fermi. | |
ID: 16020 | Rating: 0 | rate: / Reply Quote | |
Me personally - I do not mind to spend $200 on GTX470 (get it for $350 and sell my GTX275 for $150), but if GTX470 will worth these $200, i.e. it will be at least twice faster then GTX275. Other then that - it's just wasting of money and makes no sense at all. | |
ID: 16021 | Rating: 0 | rate: / Reply Quote | |
I don't see much of a controversy: for games GF100 is clearly not the best solution, period. For compute there's potential, but we don't know enough yet. | |
ID: 16022 | Rating: 0 | rate: / Reply Quote | |
We have not had any benchmarks yet. We are able already to compile for CUDA3.0 though. | |
ID: 16023 | Rating: 0 | rate: / Reply Quote | |
I don't see much of a controversy: for games GF100 is clearly not the best solution, period. For compute there's potential, but we don't know enough yet. 101% agree :-) Let's be patient and wait April 12 ____________ | |
ID: 16026 | Rating: 0 | rate: / Reply Quote | |
If you test a GTX480 or GTX470, be very carefull. it may kill your Fermi. | |
ID: 16027 | Rating: 0 | rate: / Reply Quote | |
Sandro | |
ID: 16028 | Rating: 0 | rate: / Reply Quote | |
Yes, that was strange, the reason may be that they tested with a beta app of f@h, they got from NV directly.
in short: they got a beta-version of f@h from NV to test the new geforces. so, it is NOT the normal GPU2-client distributed by f@h itself. I dont know why NV should do this, because the results are not THAT good as one expected. maybe because the standard f@h client do not recognise the fermi properly. There should be a lot of optimisation going on before we can see real world performance on folding. | |
ID: 16029 | Rating: 0 | rate: / Reply Quote | |
Yes, that was strange, the reason may be that they tested with a beta app of f@h, they got from NV directly. The story is even worse than I suspected. Special app from NV... Hm... Okay, let's try to find more reviews ____________ | |
ID: 16031 | Rating: 0 | rate: / Reply Quote | |
One of the best german computer-webpages have tested the cuda performance of GF100, too, but they couldn´t get the performance like Anandtech. Only 30% speedup in F@H and Badaboom compared to a GTX285. You can read the results (in german) here. | |
ID: 16032 | Rating: 0 | rate: / Reply Quote | |
Folding@Home always needs to update their client to support new chips, so the new client is nothing fishy yet. I don't know where this 30% faster vs. 3 times faster comes from, though. It could be that Anand had a newer beta client or that they ran very different WUs. At F@H the different WU types correspond to different algorithms, so relative performance between cards could differ. | |
ID: 16037 | Rating: 0 | rate: / Reply Quote | |
I read couple of other review and all of them saying about "tens %" but not "times" advantage over GTX285 in F@H. | |
ID: 16059 | Rating: 0 | rate: / Reply Quote | |
Due to the sheer number of shaders it should be at least a factor of 2. I don't doubt that these guys are measuring such low numbers, but something is wrong here. Maybe we should ask Anand or read over at the F@H forums. They should be running up and down the walls because of this issue right now :p | |
ID: 16072 | Rating: 0 | rate: / Reply Quote | |
im no expert on molecular dynamics but it runs well on stream processors. the gtx480 should be excellent because it has a cache that can act as a bandwidth cushion when you have overlapping gathers. fermi also has the ability to put register spills into cache. this can help performance A LOT. if you are spilling registers your performance is terrible. (i.e. 5870 performing as fast as a 8800GT). the new arch makes it easier to write compilers due to unified address space. this all translates to great performance. | |
ID: 16228 | Rating: 0 | rate: / Reply Quote | |
You mean this should all translate into great performance ;) | |
ID: 16229 | Rating: 0 | rate: / Reply Quote | |
Message boards : Graphics cards (GPUs) : Fermi released