Posted January 11, 2015 · Original PosterOP I finally got my DDR4 quad-channel kit running correctly, but after some more tinkering I managed to bring it down from it's default 3000MHz CL16 rating to a CL15. I also found ot that if I keep the CL16 I can do 3200MHz no problem. In both cases I keep the voltage at stock - 1.35V. So, as the title says, which would be better: - 3000MHz with CL15 (15-15-15-35 -1T) or - 3200MHz with CL16 (16-16-16-36 -1T) I tried to find some info on this, but couldn't get a definitive answer on whether there is actually any difference in terms of performance. CPU: Intel Core i7 5960X @4.5GHz cooled by Corsair H110 | MBO: ASRock Fatal1ty X99M Killer | RAM: GEIL Evo Potenza 16GB DDR4 3333MHz | GPU: Zotac GTX1080 Founders Edition | SSD: 512GB Transcend 370S | HDD: 1.5TB WD Green Drive | PSU: Corsair SF 600W | Case: Jansbo UMX3 S Check out the build log here -> http://linustechtips.com/main/topic/257949-analogs-project-rrh-red-riding-hood/ Another build log featuring Power Mac G5 case that I never got around to uploading the latest pictures of -> http://linustechtips.com/main/topic/454140-analogs-project-silverine-ft-apple-powermac-g5-case-modding/ Latest Build Log -> UPCOMING Link to post Share on other sites
Posted January 11, 2015 probably the higher mhz Animes i want to have another season: Noragami, No game no life, clannad, black bullet Link to post Share on other sites
Posted January 11, 2015 yeah pretty much no difference, imo. get more MEGAhz just cuz MEGAhz. Location: Kaunas, Lithuania, Europe, Earth, Solar System, Local Interstellar Cloud, Local Bubble, Gould Belt, Orion Arm, Milky Way, Milky Way subgroup, Local Group, Virgo Supercluster, Laniakea, Pisces–Cetus Supercluster Complex, Observable universe, Universe. Spoiler Xeon 1230v2, B75 Pro3-M, 16GB Crucial Ballistix, Msi TF GTX760, Crucial M500, Seagate Barracuda 1TB, CM G550M, Fractal Arc Mini. Link to post Share on other sites
Posted January 11, 2015 There won't be any difference in performance, but theoretically the 3200MHz will be better. The latency is exactly the same in either case (5ns). Forum Rules | Display Technology FAQ / Mythbuster | Guide to Display Cables / Adapters Link to post Share on other sites
Posted January 11, 2015 I finally got my DDR4 quad-channel kit running correctly, but after some more tinkering I managed to bring it down from it's default 3000MHz CL16 rating to a CL15. I also found ot that if I keep the CL16 I can do 3200MHz no problem. In both cases I keep the voltage at stock - 1.35V. So, as the title says, which would be better: - 3000MHz with CL15 (15-15-15-35 -1T) or - 3200MHz with CL16 (16-16-16-36 -1T) I tried to find some info on this, but couldn't get a definitive answer on whether there is actually any difference in terms of performance. in the real world your not gonna notice any difference. if you use winrar lots go with the faster 3200mhz speed (who knows maybe your the dude that rar's up my newsgroup DL's) if they both require the same voltage then take your pick run some aida64 cache\ memory benchies to see how they perform at different speeds\timings or maxxmem Mainboard Asrock Z170 OCF CPU 6700k RAM Tridentz 3600 HDD Intel 730 240gb GPU GTX 780ti sc acx PSU Silverstone Strider 1200W Case Antec 900 Laptop Lenovo Thinkpad T520 build log- http://linustechtips.com/main/topic/35809-antec-900-the-re-birth-of-a-legend/ Check out the Tech Center https://www.youtube.com/user/prokon24/videos LTT's Unicore King Link to post Share on other sites
Posted January 11, 2015 I finally got my DDR4 quad-channel kit running correctly, but after some more tinkering I managed to bring it down from it's default 3000MHz CL16 rating to a CL15. I also found ot that if I keep the CL16 I can do 3200MHz no problem. In both cases I keep the voltage at stock - 1.35V. So, as the title says, which would be better: - 3000MHz with CL15 (15-15-15-35 -1T) or - 3200MHz with CL16 (16-16-16-36 -1T) I tried to find some info on this, but couldn't get a definitive answer on whether there is actually any difference in terms of performance. I don't know what you're testing with, but when you find the speed you like, I'd do a few runs of memtest86 to verify stability. Link to post Share on other sites
Posted January 11, 2015 · Original PosterOP run some aida64 cache\ memory benchies to see how they perform at different speeds\timings or maxxmem This is actually a very good idea. I will do that! Thanks! CPU: Intel Core i7 5960X @4.5GHz cooled by Corsair H110 | MBO: ASRock Fatal1ty X99M Killer | RAM: GEIL Evo Potenza 16GB DDR4 3333MHz | GPU: Zotac GTX1080 Founders Edition | SSD: 512GB Transcend 370S | HDD: 1.5TB WD Green Drive | PSU: Corsair SF 600W | Case: Jansbo UMX3 S Check out the build log here -> http://linustechtips.com/main/topic/257949-analogs-project-rrh-red-riding-hood/ Another build log featuring Power Mac G5 case that I never got around to uploading the latest pictures of -> http://linustechtips.com/main/topic/454140-analogs-project-silverine-ft-apple-powermac-g5-case-modding/ Latest Build Log -> UPCOMING Link to post Share on other sites
Posted January 12, 2015 This is actually a very good idea. I will do that! Thanks! would you be kind enough to post your results? I did some tests of my own out of curiosity and for the sake of science. im curious to see how much ddr3 differs from ddr4 in this benchmark. I tried to keep cpu as close to 4.7 as possible with cache at 1:1 ratio im using this kit here http://www.newegg.ca/Product/Product.aspx?Item=N82E16820104347&cm_re=2666_predator-_-20-104-347-_-Product ran 3 tests 2800 cl 11 3000 cl 12 3200 cl 13 (well almost 3200) Mainboard Asrock Z170 OCF CPU 6700k RAM Tridentz 3600 HDD Intel 730 240gb GPU GTX 780ti sc acx PSU Silverstone Strider 1200W Case Antec 900 Laptop Lenovo Thinkpad T520 build log- http://linustechtips.com/main/topic/35809-antec-900-the-re-birth-of-a-legend/ Check out the Tech Center https://www.youtube.com/user/prokon24/videos LTT's Unicore King Link to post Share on other sites
Posted January 12, 2015 · Original PosterOP would you be kind enough to post your results? I did some tests of my own out of curiosity and for the sake of science. im curious to see how much ddr3 differs from ddr4 in this benchmark. I tried to keep cpu as close to 4.7 as possible with cache at 1:1 ratio im using this kit here http://www.newegg.ca/Product/Product.aspx?Item=N82E16820104347&cm_re=2666_predator-_-20-104-347-_-Product ran 3 tests 2800 cl 11 3000 cl 12 3200 cl 13 (well almost 3200) Yeah, sure, I will post some results, but I didn't save the ones I made yesterday so I will have to run the benchmarks again when I get home from work. I remember, thought, that actually 3000MHz at CL15 was a a bit faster than 3200MHz at CL16. There was like 0.5-0.6ns difference in favor of the former. CPU: Intel Core i7 5960X @4.5GHz cooled by Corsair H110 | MBO: ASRock Fatal1ty X99M Killer | RAM: GEIL Evo Potenza 16GB DDR4 3333MHz | GPU: Zotac GTX1080 Founders Edition | SSD: 512GB Transcend 370S | HDD: 1.5TB WD Green Drive | PSU: Corsair SF 600W | Case: Jansbo UMX3 S Check out the build log here -> http://linustechtips.com/main/topic/257949-analogs-project-rrh-red-riding-hood/ Another build log featuring Power Mac G5 case that I never got around to uploading the latest pictures of -> http://linustechtips.com/main/topic/454140-analogs-project-silverine-ft-apple-powermac-g5-case-modding/ Latest Build Log -> UPCOMING Link to post Share on other sites
Posted January 12, 2015 · Original PosterOP @ProKoN I did some more testing and benchmarking and I found some interesting stuff. I wasn't able to replicate yesterdays result with the 3200MHz overclock, but I did some other stuff. Keep in mind this is not a motherboard-certified memory kit. For my board there are only two kits of and over 3000MHz that are certified to work. CPU: 4.4GHz Cache: 3GHz (Stock) RAM: 3000MHz 15-15-15-35 CPU: 4.4GHz Cache: 3GHz (Stock) RAM: 3000MHz 16-16-16-36 CPU: 4.4GHz Cache: 3.5GHz RAM: 3000MHz 16-16-16-36 Interestingly, I cannot get the memory to run at CL15 with the cache overclocked. I played around with the system voltage, but it didn't really add to the stability at all. That was also something that I noticed yesterday when I managed to boot at 3200MHz speeds, even though I kept the RAM at CL16. The last preset feels quite a bit more snappy in Windows compared to the others. Despite that the differentiation in the latency is only marginal. PS: Since I am bit new to memory overclocking, could you explain what exactly is the Command Rate and how it impacts performance. I am interested, because my motherboard has it pre-configured to 2T, but it is impossible to get the memory to run at 3000MHz without setting it at 1T. Also, at 1T Command Rate all programs seem to load considerably faster. Also the Windows turns on and off more rapidly. CPU: Intel Core i7 5960X @4.5GHz cooled by Corsair H110 | MBO: ASRock Fatal1ty X99M Killer | RAM: GEIL Evo Potenza 16GB DDR4 3333MHz | GPU: Zotac GTX1080 Founders Edition | SSD: 512GB Transcend 370S | HDD: 1.5TB WD Green Drive | PSU: Corsair SF 600W | Case: Jansbo UMX3 S Check out the build log here -> http://linustechtips.com/main/topic/257949-analogs-project-rrh-red-riding-hood/ Another build log featuring Power Mac G5 case that I never got around to uploading the latest pictures of -> http://linustechtips.com/main/topic/454140-analogs-project-silverine-ft-apple-powermac-g5-case-modding/ Latest Build Log -> UPCOMING Link to post Share on other sites
Posted January 12, 2015 15-15-15-35 -1T are pretty nice memory settings at 3000mhz, what voltage are you using for it? »»» Frankz' X99 System ««« CPU: 5820k 4.6Ghz 1.31v, Motherboard: Asus Rampage V Extreme, RAM: G.Skill Ripjaws4 16GB DDR4@3000Mhz, GPU: ASUS GTX780 DirectCUII SSD: Samsung 850 EVO 250GB, HDD: WD Blue 1TB, PSU: EVGA SuperNova 850 G2, Cooler: Corsair H105, Case: Corsair Obsidian 750D Link to post Share on other sites
Posted January 12, 2015 · Original PosterOP 15-15-15-35 -1T are pretty nice memory settings at 3000mhz, what voltage are you using for it? I am using 1.35V CPU: Intel Core i7 5960X @4.5GHz cooled by Corsair H110 | MBO: ASRock Fatal1ty X99M Killer | RAM: GEIL Evo Potenza 16GB DDR4 3333MHz | GPU: Zotac GTX1080 Founders Edition | SSD: 512GB Transcend 370S | HDD: 1.5TB WD Green Drive | PSU: Corsair SF 600W | Case: Jansbo UMX3 S Check out the build log here -> http://linustechtips.com/main/topic/257949-analogs-project-rrh-red-riding-hood/ Another build log featuring Power Mac G5 case that I never got around to uploading the latest pictures of -> http://linustechtips.com/main/topic/454140-analogs-project-silverine-ft-apple-powermac-g5-case-modding/ Latest Build Log -> UPCOMING Link to post Share on other sites
Posted January 12, 2015 yeah pretty much no difference, imo. get more MEGAhz just cuz MEGAhz. Ouch! Link to post Share on other sites
Posted January 13, 2015 @ProKoN The last preset feels quite a bit more snappy in Windows compared to the others. Despite that the differentiation in the latency is only marginal. PS: Since I am bit new to memory overclocking, could you explain what exactly is the Command Rate and how it impacts performance. I am interested, because my motherboard has it pre-configured to 2T, but it is impossible to get the memory to run at 3000MHz without setting it at 1T. Also, at 1T Command Rate all programs seem to load considerably faster. Also the Windows turns on and off more rapidly. that bandwidth is pretty epic. The quad channel is really shining in the benchmarks. funny you say you can notice a difference with the different latencies. others report the same thing. I personally cant tell the difference between ddr 1600 cl9 and ddr3 2400 cl9. im no expert in memory overclocking. command rate is basically a latency setting. as with all latency settings the lower the value the "quicker" your memory will perform. 1T is the most desirable command rate value so keep it there.it was more of a thing back in the ddr2 days where the difference in command rate may equate to marginal performance gains\losses. with ddr3 its not even within margin of error for the most part aside from synthetic memory benchmarks which are kool and neat but really i dont think are indicative of real world performance for the most part. really good read. thank you for posting your results. if your ever bored take out a couple mem chips and run some dual channel results your 20mb cache + ddr4+ quad channel is hauling ass Mainboard Asrock Z170 OCF CPU 6700k RAM Tridentz 3600 HDD Intel 730 240gb GPU GTX 780ti sc acx PSU Silverstone Strider 1200W Case Antec 900 Laptop Lenovo Thinkpad T520 build log- http://linustechtips.com/main/topic/35809-antec-900-the-re-birth-of-a-legend/ Check out the Tech Center https://www.youtube.com/user/prokon24/videos LTT's Unicore King Link to post Share on other sites
Posted January 13, 2015 · Original PosterOP @ProKoN I did some further testing just for the fun of it. I had to back the CPU overclock down to 3.6GHz, the BLCK to 120 and to put the CR back to the default setting of 2T, but I did manage to get to 3200MHz, while still running the RAM at 1.35V. CPU: 3.6GHz Cache: 3GHz (Stock) RAM: 3200MHz 16-16-16-36-2T CPU: Intel Core i7 5960X @4.5GHz cooled by Corsair H110 | MBO: ASRock Fatal1ty X99M Killer | RAM: GEIL Evo Potenza 16GB DDR4 3333MHz | GPU: Zotac GTX1080 Founders Edition | SSD: 512GB Transcend 370S | HDD: 1.5TB WD Green Drive | PSU: Corsair SF 600W | Case: Jansbo UMX3 S Check out the build log here -> http://linustechtips.com/main/topic/257949-analogs-project-rrh-red-riding-hood/ Another build log featuring Power Mac G5 case that I never got around to uploading the latest pictures of -> http://linustechtips.com/main/topic/454140-analogs-project-silverine-ft-apple-powermac-g5-case-modding/ Latest Build Log -> UPCOMING Link to post Share on other sites