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GPU Wars 2014: Postponed to 2015?
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shizaru Send message Joined: 14 Jun 04 Posts: 1130 Credit: 1,967,904 RAC: 0 |
Haven't had time to digest these but at first glance it looks like we're back to the good ol' days of Fermi (sans toaster jokes!) :) I think Kepler proved hard to get excited about as far as Seti is concerned. Maxwell may end up far more promising but as we all know by now, specs alone can be deceptive when it comes to Seti... Here are your links for today: AnanadTech - Compute (page 21 of 24) The NVIDIA GeForce GTX 750 Ti and GTX 750 Review: Maxwell Makes Its Move TPU - Performance per Watt (page 26 of 30) NVIDIA GeForce GTX 750 Ti 2 GB |
Thomas Send message Joined: 9 Dec 11 Posts: 1499 Credit: 1,345,576 RAC: 0 |
Haven't had time to digest these but at first glance it looks like we're back to the good ol' days of Fermi (sans toaster jokes!) :) I think Kepler proved hard to get excited about as far as Seti is concerned. Maxwell may end up far more promising but as we all know by now, specs alone can be deceptive when it comes to Seti... Thanks for the heads-up Alex ! :) |
jason_gee Send message Joined: 24 Nov 06 Posts: 7489 Credit: 91,093,184 RAC: 0 |
Too bad that nVidia originally engineered Maxwell to have x86 cores as onboard counterparts, were set back so long, and were forced to seek alternatives. The RISC based ARM core is impressive, but far less understood by developers. It seems Intel and AMD bastardry backfires yet again. When will they realise a world run by lawyers would be a lonely one ? "Living by the wisdom of computer science doesn't sound so bad after all. And unlike most advice, it's backed up by proofs." -- Algorithms to live by: The computer science of human decisions. |
draco Send message Joined: 6 Dec 05 Posts: 119 Credit: 3,327,457 RAC: 0 |
OMG! i that way, looks like, we soon have x86 architecture in smartphones too. world lead to more and more dumb.... |
jason_gee Send message Joined: 24 Nov 06 Posts: 7489 Credit: 91,093,184 RAC: 0 |
OMG! +1 "Living by the wisdom of computer science doesn't sound so bad after all. And unlike most advice, it's backed up by proofs." -- Algorithms to live by: The computer science of human decisions. |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
Which is the difference from GTX 750 ti and GTX 750 OC? I have found the latter on an Amazon catalogue and it would cost me 126 euro in Italy. tullio |
archae86 Send message Joined: 31 Aug 99 Posts: 909 Credit: 1,582,816 RAC: 0 |
Which is the difference from GTX 750 ti and GTX 750 OC? I have found the latter on an Amazon catalogue and it would cost me 126 euro in Italy. In this case the ti designation cards use the same physical chip, but with more functional units enabled for use, and a slightly higher TDP. The OC designation generally means a version clocked more above the manufacturer's nominal clock rate than a card from the same vendor without "OC". But regardless of OC or not you can only determine the clock rate on a specific card by consulting specs, reviews, or such. If this link works, it will take you to the fourth page of a review on the GTX 750 and 750 ti cards on Anandtech--a page which details the "ti" version differences. You may find other parts of the review useful as well. Anandtech GTX 750 review page 4 The quick answer to the ti differences question is: resource std ti cores 640 512 texture units 40 32 TDP 55 60 |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
The quick answer to the ti differences question is: Did you really mean it that way round - with the standard version having more cores and texture units than the Ti version? |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
Thanks archae86, but it seems to me that your data are different from those of the link. It is the Ti which has more cores compared to the standard and also more texture units. The TDP is correct. Since I am not a graphic card expert, can you confirm this? I have a 400 watt power supply on my SUN WS 2008 vintage and no 6 pin connector. Can I install a standard version? Thanks. Tullio |
Batter Up Send message Joined: 5 May 99 Posts: 1946 Credit: 24,860,347 RAC: 0 |
NVIDIA GPU Specification Comparison GTX 750 Ti GTX 750 CUDA Cores 640 512 Texture Units 40 32 ROPs 24 16 Core Clock 1020MHz 1020MHz Boost Clock 1085MHz 1085MHz Memory Clock 5.4GHz GDDR5 5GHz GDDR5 Memory Bus Width 128-bit VRAM 2GB 1GB FP64 1/32 1/32 TDP 60W 55W Transistor Count 1.87B 1.87B Manufacturing Process TSMC 28nm TSMC 28nm Architecture Maxwell Maxwell GPU GM107 GM107 GK107 Launch Date 02/18/14 02/18/14 Launch Price $149 $119 |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
NVIDIA GPU Specification Comparison GTX 750 Ti GTX 750 CUDA Cores 640 512 Texture Units 40 32 ROPs 24 16 Core Clock 1020MHz 1020MHz Boost Clock 1085MHz 1085MHz Memory Clock 5.4GHz GDDR5 5GHz GDDR5 Memory Bus Width 128-bit VRAM 2GB 1GB FP64 1/32 1/32 TDP 60W 55W Transistor Count 1.87B 1.87B Manufacturing Process TSMC 28nm TSMC 28nm Architecture Maxwell Maxwell GPU GM107 GM107 Launch Date 02/18/14 02/18/14 Launch Price $149 $119 |
archae86 Send message Joined: 31 Aug 99 Posts: 909 Credit: 1,582,816 RAC: 0 |
As several have pointed out, I got the ti vs non-ti numbers wrong in my first post in this thread. I was not even consistent, as I got the TDP right-way round, and the cores and texture units backwards. As the time to edit has expired, I'll just let the several corrective postings by others stand. Sorry about that. While some of the card vendors suggest extravagantly high rated power supplies even for GTX 750 cards, if you are buying a non-overclocked card and refrain from overclocking and overvolting it yourself, I think quite modest power supplies--provided exclusively through the PCIe connector, will very likely prove entirely adequate. In particular, I'd be very surprised if Tullio's 400 watt supply were to prove inadequate. But I'd not buy a card with the 6-pin extra power connector if I lacked means to provide that connection. A reference in one or more of the reviews has me thinking that 75 watt card total is the nominal PCIe connector-supplied power limit. As the TDP is just for the GPU chip, the rest of the card could put you a little closer to this than you might think. But I think most of the companies offering base 750 cards are not providing 6-pin extra power connectors, and not even all of the ti overclocked cards provide them. On the graphics card scale of modern times, these things are actually pretty low power--considerably higher than the sub $50 fanless cards I used to buy, but well below what were considered mid-range cards in the last generation, and very far below any card with gamer bragging rights. |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
Thanks everybody for their help. Sic stantibus rebus, I shall not buy the Gigabyte GTX 750 OC since it is probably overclocked. I shall wait for a not overclocked version. Tullio |
shizaru Send message Joined: 14 Jun 04 Posts: 1130 Credit: 1,967,904 RAC: 0 |
A few random tidbits: @Tullio - OC stands for (is the abbreviation of) "overclocked", so yes, you were looking at an overclocked card... At the bottom of this link is a chart and - in bold - has the differences between the 750 and 750 OC. A few columns over is the 750Ti too. http://www.techpowerup.com/reviews/ASUS/GTX_750_OC/ @archae86 - always nice to see you drop by :) Important: Forgot to mention that since this is a new architecture, there is a chance it may not work out-of-the-box with Seti. |
Gone Send message Joined: 31 May 99 Posts: 150 Credit: 125,779,206 RAC: 0 |
Hi, I just took delivery of 3 x 750 Ti and will fire them up in a couple of hours. I will post back here if they work or not. Any suggestions as to which version I should run Cuda 42 or Cuda 50 ? Reg |
arkayn Send message Joined: 14 May 99 Posts: 4438 Credit: 55,006,323 RAC: 0 |
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shizaru Send message Joined: 14 Jun 04 Posts: 1130 Credit: 1,967,904 RAC: 0 |
Hi, I just took delivery of 3 x 750 Ti and will fire them up in a couple of hours. I'm not pretending to be even remotely qualified to take a shot at answering but I do want to say I wouldn't be surprised if it turns out to be Cuda 42. As I understood the Anand article, Maxwell architecture is closer to Fermi than Kepler. If that is truly the case and I'm not oversimplifying my reasoning (though I probably am) that could even mean that 42 works while 50 doesn't? We'll know soon enough:) Congratz on your new cards RED and if you are up for it, you may need to consult with someone like Richard or Joe (or anyone who thoroughly understands Server-side validation) in case it might be a good idea to run stock for a few days or until you complete 10 tasks from each app? I honestly have no idea if this would help the project in any way, just bringing it up so a guru can shoot it down or expand on it:) Edit: Apologies for getting your name wrong Reg :) |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
Hi, I just took delivery of 3 x 750 Ti and will fire them up in a couple of hours. Unless you intend to put then all in the same machine, why not try cuda42 on one, cuda50 on another? Heck, even cuda32 on a third for giggles. I don't know whether Jason has got or is getting a Maxwell yet - he might even have a cuda55 or cuda60 he needs testing. I don't think there's any need to run stock first - even if you're upgrading an existing CUDA host, your current cards are beefy enough for the speeds to match well enough, and they'll settle down soon enough. But - and this may be redundant advice given the current state of the splitters - do please turn down your cache/work request before you start, in case tasks get trashed: this is very much untested technology. |
Gone Send message Joined: 31 May 99 Posts: 150 Credit: 125,779,206 RAC: 0 |
750 Ti installedmon this host http://setiathome.berkeley.edu/show_host_detail.php?hostid=7218229 Behaving like any the card so far. Latest Nvidia driver 334.89 and currently doing MB on Cuda 42. 21/02/2014 16:22:34 | | CUDA: NVIDIA GPU 0: GeForce GTX 750 Ti (driver version 334.89, CUDA version 6.0, compute capability 5.0, 2048MB, 1938MB available, 2183 GFLOPS peak) 21/02/2014 16:22:34 | | OpenCL: NVIDIA GPU 0: GeForce GTX 750 Ti (driver version 334.89, device version OpenCL 1.1 CUDA, 2048MB, 1938MB available, 2183 GFLOPS peak) I will try it on Cuda 50 after a while and then try all 3 cards. Reg |
archae86 Send message Joined: 31 Aug 99 Posts: 909 Credit: 1,582,816 RAC: 0 |
Big Reg wrote: Hi, I just took delivery of 3 x 750 Ti and will fire them up in a couple of hours.Which particular manufacturer/model did you obtain? And what clock speed are they set to by default and have you yet tampered with any of the default settings? Lastly, I got excited because one of your hosts which currently shows as having a 750 ti got a validated WU, but on reading the details the particular task seems to have been done on a 560 ti. I myself have a 750 base model on order (EVGA 01G-P4-2751-KR, 1020 MHz), but will bring it up first on Einstein, and probably won't get first results until a week or two from now. If 750 results are still scarce here by the time I get it running, I'll do some trials on SETI, but suspect there will be others long before me. |
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