Message boards :
Number crunching :
Similiar perfomance replacement suggestions for GTX295 Co-op
Message board moderation
Author | Message |
---|---|
Al Send message Joined: 3 Apr 99 Posts: 1682 Credit: 477,343,364 RAC: 482 |
I have been finding some decent deals recently on GTX295's, I have a few that I am going to be installing over the next few weeks, but it being summer here now, and the temps getting into the 90's, they are showing their true colors in terms of power draw and heat output. It wouldn't be a biggie in, say, January, but in July/August, well, it isn't appreciated as much. I am wondering what 4/5/6 series card would provide about the same in terms of performance, while drawing less power and generating less heat. I know it would most likely be more expensive than collecting 295's, but obviously it's performance has been surpassed but the latest cards, by a great deal. I am not looking at a 690, thank you, but I would have to think that there are some 500 series cards that could equal it for somewhere near the same price as they are selling the 295's for. What has been your experience, folks? |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
I have been finding some decent deals recently on GTX295's, I have a few that I am going to be installing over the next few weeks, but it being summer here now, and the temps getting into the 90's, they are showing their true colors in terms of power draw and heat output. It wouldn't be a biggie in, say, January, but in July/August, well, it isn't appreciated as much. Uhh...... Where are you finding 295s???? Talking about burned out stuff? Or new? "Freedom is just Chaos, with better lighting." Alan Dean Foster |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Anyway, to answer your question. I dunno about current stuff, but a GTX590 will closely replace 2 GTX295s. Meow. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13736 Credit: 208,696,464 RAC: 304 |
I dunno about current stuff, but a GTX590 will closely replace 2 GTX295s. So a GTX680 would be even faster, while using even less power. The GTX680 uses less power than a GTX560Ti. Grant Darwin NT |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
I dunno about current stuff, but a GTX590 will closely replace 2 GTX295s. The 690 would be the top dog. Or kitty. If I could pony up the funds to convert all I have to 690s......LOL. Less power overall, less heat, more kibbles. Next winning lottery ticket. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
spitfire_mk_2 Send message Joined: 14 Apr 00 Posts: 563 Credit: 27,306,885 RAC: 0 |
You can get refurbished GTX 460 for 100-110 dollars. Or new GTX 460 for 110 dollars. A refurbished GTX 560 will cost you 150-160 dollars. I don't think I would bother with anything from 2xx generation. |
Al Send message Joined: 3 Apr 99 Posts: 1682 Credit: 477,343,364 RAC: 482 |
Hi, sorry I didn't reply sooner, I had gotten a few Intel MB's cheap and was testing them out last night to make sure none were DOA. They are all good, so they get added to the prospective farm pile... As to the 295 sources, usually used, not toasted (yet, they have worked as advertised) one Overclockers.com and HardOC for sale sections. I keep my eyes open, in fact, I just missed getting a new in the box 295 for $150, but they come and go. My concern of course is crunching vs. power/heat. I know they crunch decently, but man, the heat! ;-) |
Al Send message Joined: 3 Apr 99 Posts: 1682 Credit: 477,343,364 RAC: 482 |
I have 2 GTX560Ti's in my multi-GPU rig, can't tell yet if they are doing any better in RAC than the 295. As for price, I paid about 200 new for them (after rebate), so they are still a little more expensive, but I hadn't looked used. Is there a way I can tell in my stats how each card in a rig is doing? As I mentioned in one of my other threads, I have yet to get my RAC with 2 560's, a GTX260 and a GTX285 back up to what it was before I upgraded the client and vid drivers when I was just running 4 GTC260's. I've been patiently waiting got it to get back to 58k. Are there better/different versions of the 500 series that are in the same $150ish price range, that work as well or better than the 295? And do you have any RAC numbers to compare the different cards, or know where someone could find that info? Thanks! |
Al Send message Joined: 3 Apr 99 Posts: 1682 Credit: 477,343,364 RAC: 482 |
As a quick and interesting aside, I have BOINC set up on my inlaws computer, I had upgraded it to a Core 2 Duo CPU E4600 and slapped in my old GeForce 8800 GT card. It hasn't been upgraded to more current versions of BOINC and vid drivers, and it's just sitting there unused most of the time other than them doing occasional emails and web browsing. That machine has a consistent RAC of about 10k, while my multi-GPU machine with the i7-950 and the video cards mentioned above is currently only pulling down 45k. The i7 rig is running 16 tasks concurrently, but still only 4.5x the RAC. Thought it was an interesting tidbit of info. |
Alaun Send message Joined: 29 Nov 05 Posts: 18 Credit: 9,310,773 RAC: 0 |
I did a comparision using single precision GFLOPS. That's not directly RAC numbers, but it's a good guideline to compare cards against each other. Total cost = Purchase price + Electricity @ $0.13/kwh for 2 years. This does not include air conditioning which would add to your bill substantially. You can see that buying a 295 and running it continually for 2 years is going to cost you roughly $850. For less money you can run a 670 that has triple the performance. In the graph you can see the 6xx cards are far and away the best value. [/img] |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
I did a comparision using single precision GFLOPS. That's not directly RAC numbers, but it's a good guideline to compare cards against each other. Yeah, OK. Like I did not know the facts....LOL. Will you front me the funds to do the conversion on my top rig? Promise to buy you a hamburger on Friday. I have the last pair of 295s running in the top 20 rigs. Except for vypir.....who shows 4? running in a single rig. That is quite a feat. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Al Send message Joined: 3 Apr 99 Posts: 1682 Credit: 477,343,364 RAC: 482 |
4 on one machine, huh, impressive. How many GPU's does one instance of BOINC support? At least 8, obviously. Wonder if that is the limit? |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
You want a serious response, or just BS? Another user can give you BS all day long....... Twenty GPUs is not too many......LOL. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Al Send message Joined: 3 Apr 99 Posts: 1682 Credit: 477,343,364 RAC: 482 |
Of course I want a serious response! :-) I have no idea if there's a limitation to the number of GPU's one machine can support in BOINC. I suppose if you use the Hydro version of the 295, and install 8 of them into a board like my SR-2 or 4-way SLI, you could technically have up to 16. That is of course if you have the money, and if the software would support it. Is there a limit? Imagine 8 Hydros working in one machine. Man! A 2000+ watt machine easy. |
MOMMY: He is MAKING ME Read His Posts Thoughts and Prayers. GOoD Thoughts and GOoD Prayers. HATERWORLD Vs THOUGHTs and PRAYERs World. It Is a BATTLE ROYALE. Nobody LOVEs Me. Everybody HATEs Me. Why Don't I Go Eat Worms. Tasty Treats are Wormy Meat. Yes Send message Joined: 16 Jun 02 Posts: 6895 Credit: 6,588,977 RAC: 0 |
Is there a limit? Imagine 8 Hydros working in one machine. Man! A 2000+ watt machine easy. Seems I've heard This Story Before. From a Lonely Voice Deep In The Desert. Now who was that? YouKnowInYermoDullNanDO May we All have a METAMORPHOSIS. REASON. GOoD JUDGEMENT and LOVE and ORDER!!!!! |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Of course I want a serious response! :-) I have no idea if there's a limitation to the number of GPU's one machine can support in BOINC. I suppose if you use the Hydro version of the 295, and install 8 of them into a board like my SR-2 or 4-way SLI, you could technically have up to 16. That is of course if you have the money, and if the software would support it. Is there a limit? Imagine 8 Hydros working in one machine. Man! A 2000+ watt machine easy. Sorry, my sarcasm was not aimed correctly. I seem to recall that there was a 8 GPU limit or something like that which Boinc would recognize. Other than that, no hardware limitation that I am aware of, other than the reality of what the mobo will properly support...... What you try to hang off of it is another matter. Meow. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Al Send message Joined: 3 Apr 99 Posts: 1682 Credit: 477,343,364 RAC: 482 |
No worries at all, I took it with a smile. Hmm, well, I wonder if anyone has ever tried more than 8 in one machine? It'd be fun to try.. Reading Alauns chart, it looks like the sweet spot is actually the GTX670's. I have read that they can reliably overclocked to speeds approaching the 680's, for a honeybee less. Of course, you can "only" get 4 of them in one computer, so 4 cores instead of 8, but then there's also the matter of the $4000+ you would be spending to get those 8 cores, too... If I hit the lottery someday, I am going to have FUN... :D |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
No worries at all, I took it with a smile. Hmm, well, I wonder if anyone has ever tried more than 8 in one machine? It'd be fun to try.. Reading Alauns chart, it looks like the sweet spot is actually the GTX670's. I have read that they can reliably overclocked to speeds approaching the 680's, for a honeybee less. Of course, you can "only" get 4 of them in one computer, so 4 cores instead of 8, but then there's also the matter of the $4000+ you would be spending to get those 8 cores, too... If I hit the lottery someday, I am going to have FUN... :D Have fun..... Just take my statement seriously that there IS a point of diminishing returns. You can't just stuff any unlimited number of cards in a rig and expect the output to increase exponentially. It won't. Part of the reason the kitties do so well with their limited resources is because they are spread out amongst 9 rigs. They have enough CPUs to buck up the GPUs. If I won the lottery tomorrow....... I'd build a bunch of 2 card rigs with 690s. But no more than 2 per rig. And I'll beat your 8 card rig all the way down. I do know this game pretty well by now. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Case in point..... Look at the Top 20 hosts.... No diss to him, but Vyper has 4 295s struggling away in his rig to hit 100k RAC. I have 2 making 77K. Why is he not at 150K? I told you why. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
.clair. Send message Joined: 4 Nov 04 Posts: 1300 Credit: 55,390,408 RAC: 69 |
Not long ago Frank N Stien aka TA, Put this monster of parts together, just for fun !! It Lives, It Lives !!and its biology was disgust :¬) |
©2024 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.