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Thread: DDR3 Ram Speed Is Faster Better For WCG? |
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Thread Status: Active Total posts in this thread: 20
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Speedy51
Veteran Cruncher New Zealand Joined: Nov 4, 2005 Post Count: 1220 Status: Offline Project Badges: 
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I have a Gigabyte X58A-UD3R Rev-1.0 motherboard with a 980X CPU Socket 1366 LGA stock at 3.33 GHZ. I'm currently running 12GB 2x6 sticks of Kingston @ 667MHz (1333) Here is a list of memory my board can support in the 2000 range.
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APET20B1 1GB Apacer 78.0AGCQ.CBZ SS v 3PCS CET20C1 2GB CORSAIR TR3X6G2000C8GT DS v 3PCS GSET20C1 2GB G.SKILL F3-16000CL9D-4GBTD DS v 3PCS GSET20B1 1GB G.SKILL F3-16000CL9T-3GBPI-B SS v 3PCS SET20B1 1GB STAREX STH100UD0814-2000A SS v N/A TA20B1 1GB Team TXD32048M2000HC9 SS v 3PCS PAET20C1 2GB PATRIOT PVT36G2000LLK DS v 3PCS PA20B1 1GB PATRIOT PVS32G2000LLKN SS v 3PCS KET20B2 1GB Kingston KHX2000C9D3T1K3/3GX SS v 3PCS O20C1 2GB OCZ OCZ3B2000LV6GK DS v 3PCS O20C2 2GB OCZ OCZ3P20004GK DS v 3PCS MU20C1 2GB mushkin 996696es DS v 3PCS My question is is. If I upgraded to Patriot DDR3-2000 Viper Xtreme Series 12GB Kit (3x 4GB), CL9 I can buy for $188.72 icl 14% GST NZD + freight (I'm aware I may need to buy 2 6GB kits. Buy looks of chart above PATRIOT is only supported in 2GB sticks?) Would there be a noticeable decrease in processing times? This HCMD2 task CMD2_ 2209-1HE8_ A.clustersOccur-2E7H_ A.clustersOccur_ 4_ 1-- took 9.6 hours points 246.6 / 214.2. The other task CMD2_ 2209-1HE8_ A.clustersOccur-2E7H_ A.clustersOccur_ 4_ 0-- ended at soft cut off 6 hours points 83.7 / 98.7 Thanks in advance for any advice  [Edit 1 times, last edit by Speedy51 at Dec 30, 2011 2:30:03 AM] |
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nanoprobe
Master Cruncher Classified Joined: Aug 29, 2008 Post Count: 2998 Status: Offline Project Badges: 
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FWIW I did some limited testing with memory speeds and found no measurable speed increases running above 1333 MHz. That may change with better optimization and if 64 bit will become more common on WCG projects but if you're looking to upgrade machines that only crunch I would wait on spending money for faster ram. If you use the machine for other things (gaming, encoding, whatever) then maybe a speed upgrade would help there. FWIW I'm very partial to GSkill memory. Overclocks well and most of them have a lifetime warranty.
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Speedy51
Veteran Cruncher New Zealand Joined: Nov 4, 2005 Post Count: 1220 Status: Offline Project Badges:
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Thanks for info. I work on other Boinc projects that suggest speed increases over time. When I 1st built my PC I wanted to use PATRIOT ram. I agree GSkill is also very good.
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sk..
Master Cruncher http://s17.rimg.info/ccb5d62bd3e856cc0d1df9b0ee2f7f6a.gif Joined: Mar 22, 2007 Post Count: 2324 Status: Offline Project Badges: 
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It's not worth the change for crunching performance alone.
The sweet spots are 1333/1600MHz for LGA1366, 1600MHz for SandyBridge and 1866MHz for LGA2011. Faster RAM, for the relative platforms, tends to be overly expensive for little or no performance gain. For crunching it tends to matter even less than for general use. I found that moving from DDR2 on a dual memory type board to DDR3 (Q8400) made a significant difference, as did moving from 2GB dual channel to 6GB triple in an i7. I suspect that quad channel would have some significance over dual and triple channel, but that remains to be seen. It might be worth while if you are moving from 1.65V to 1.5V and if the timings are slightly better (CL7 vs CL9), but an SSD would probably be a better investment. Alternatively you might want to wait for the HCC GPU app and then get a post-beta recommended GPU. PS. The chart is just a limited number of tested RAM module types. That motherboard accepts many other brands and does take 4GB modules, for up to 24GB (not that you need any more than 12GB). |
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Speedy51
Veteran Cruncher New Zealand Joined: Nov 4, 2005 Post Count: 1220 Status: Offline Project Badges:
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PS. The chart is just a limited number of tested RAM module types. That motherboard accepts many other brands and does take 4GB modules, for up to 24GB (not that you need any more than 12GB). skgiven thanks for info. Other Boinc projects ie Seti say faster ram is better. Also going to 3x4 sticks will save a little bit of power. Patriot DDR3-2000 Viper Xtreme Series is over $200 cheaper than corsair DDR3 2000. In New Zealand |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
What does SETI say about SSD's and GPU's?
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OldChap
Veteran Cruncher UK Joined: Jun 5, 2009 Post Count: 978 Status: Offline Project Badges: 
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It's not worth the change for crunching performance alone. The sweet spots are 1333/1600MHz for LGA1366, 1600MHz for SandyBridge and 1866MHz for LGA2011. Faster RAM, for the relative platforms, tends to be overly expensive for little or no performance gain. For crunching it tends to matter even less than for general use. I found that moving from DDR2 on a dual memory type board to DDR3 (Q8400) made a significant difference, as did moving from 2GB dual channel to 6GB triple in an i7. I suspect that quad channel would have some significance over dual and triple channel, but that remains to be seen. It might be worth while if you are moving from 1.65V to 1.5V and if the timings are slightly better (CL7 vs CL9), but an SSD would probably be a better investment. Alternatively you might want to wait for the HCC GPU app and then get a post-beta recommended GPU. PS. The chart is just a limited number of tested RAM module types. That motherboard accepts many other brands and does take 4GB modules, for up to 24GB (not that you need any more than 12GB). Confirmed by our team members. There might be a reason for getting more ram however... One of the guys has been trialling the use of ramdisk to alleviate the delays and hard disk thrashing when running more threads on Clean energy Want to run 100% CEP2 WUs? Here's how...  |
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Falconet
Master Cruncher Portugal Joined: Mar 9, 2009 Post Count: 3265 Status: Offline Project Badges: 
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It's not worth the change for crunching performance alone. The sweet spots are 1333/1600MHz for LGA1366, 1600MHz for SandyBridge and 1866MHz for LGA2011. Faster RAM, for the relative platforms, tends to be overly expensive for little or no performance gain. For crunching it tends to matter even less than for general use. I found that moving from DDR2 on a dual memory type board to DDR3 (Q8400) made a significant difference, as did moving from 2GB dual channel to 6GB triple in an i7. I suspect that quad channel would have some significance over dual and triple channel, but that remains to be seen. It might be worth while if you are moving from 1.65V to 1.5V and if the timings are slightly better (CL7 vs CL9), but an SSD would probably be a better investment. Alternatively you might want to wait for the HCC GPU app and then get a post-beta recommended GPU. PS. The chart is just a limited number of tested RAM module types. That motherboard accepts many other brands and does take 4GB modules, for up to 24GB (not that you need any more than 12GB). Confirmed by our team members. There might be a reason for getting more ram however... One of the guys has been trialling the use of ramdisk to alleviate the delays and hard disk thrashing when running more threads on Clean energy Want to run 100% CEP2 WUs? Here's how... http://www.xtremesystems.org/forums/showthrea...n-100-CEP2-WUs-Here-s-how AMD Ryzen 5 1600AF 4C/8T 3.2 GHz - 85W AMD Ryzen 5 2500U 4C/8T 2.0 GHz - 28W Intel Z3740 4C/4T 1.8 GHz - 6W |
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Speedy51
Veteran Cruncher New Zealand Joined: Nov 4, 2005 Post Count: 1220 Status: Offline Project Badges:
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Thankyou all for the idea regarding getting more ram for making a ram disk for CWP2. My goal with the ram upgrade is to gain slightly faster system performanceWhen/if I go ahead with ram change I'm thinking of going with Patriot DDR3-2000 Viper II Series Sector 7 Edition 12GB Kit (3x 4GB), CL9 instead of Patriot DDR3-2000 Viper Xtreme Series 12GB Kit (3x 4GB), CL9. as it's a little cheaper & faster over all. It's a shame IMO that they don't make Patriot DDR3-2000 Viper II Series Sector 7 Edition 12GB Kit (3x 4GB) in CL8 (if they do I can't find it)
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Hypernova
Master Cruncher Audaces Fortuna Juvat ! Vaud - Switzerland Joined: Dec 16, 2008 Post Count: 1908 Status: Offline Project Badges: 
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I suspect that quad channel would have some significance over dual and triple channel, but that remains to be seen. My recents test with the 3960X and the Asus sabertooth motherboard using Corsair 8GB DDR3 2000 MHz in Quad channel mode, brings no visible or measurable improvement compared to the Triple channel 6GB configuration with the same Corsair DDR3 RAM. RAM is so cheap now that 4, 6, 8 GB are not an issue anymore.  |
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