Overclock losing stability
Overclock losing stability
EpIckFa1LJoN:
The latency timings on my RAM are 15-15-15-36 at 2133MHz with 1.2v. Will the difference remain noticeable at XMP 2 with 16-18-18-36 at 3200MHz and 1.35v? Or is it irrelevant?
Checking those sources shows it doesn’t matter much. The chip also has an integrated memory controller, which means lower RAM speeds might actually improve performance by freeing up core clocks. A difference of 4.5 vs 4.7 on the core would be more impactful than any RAM could provide. Particularly with DDR4, which is already faster than DDR3 and offers better results overall.
TheFluffyDog :
Based on my observations, at stock RAM with latency timings 15-15-15-36 at 2133MHz and 1.2v, I don’t expect much difference when switching to XMP 2 with 16-18-18-36 at 3200MHz and 1.35v. It seems it doesn’t really matter.
I also read that the chip includes an integrated memory controller, which means maintaining a lower RAM speed might even unlock additional clock cycles from the core. A difference of 4.5 vs 4.7 on the core could be more impactful than any RAM could provide. Especially with DDR4, which is already faster than DDR3 and offers better performance overall.
Should I try to optimize the RAM beyond its rated speeds? Since I sometimes struggle to keep the game above 70 FPS in certain sections, I’ll stick to default settings and check the benchmarks. From what I see, a couple hundred MHz of DDR3 RAM would likely make a noticeable difference in FO4.
EpIckFa1LJoN :
TheFluffyDog :
also as a side note, when you increase RAM frequencies you increase how fast is cycles. When you increase latency you increase the number of cycles required for a command to take place. By increasing both you effectively cancel some of the benefits of the faster speed. THis is why XMP works out of the box, because they speed up one thing and slow down the other. High ram speeds do benefit for things like 3D modeling, where after a command has been executed by the ram and the read cycle begins, the file size is very large and read cycle takes up the majority of the operating time. In games, there are more commands with smaller file sizes and the benefits on higher speeds are canceled by the increase in higher latencies.
^FYI
Okay, so does that mean my RAM is crap for gaming? I'm replacing it when I upgrade to 8th Gen anyways... what should I get?
Your ram is fine, and is as "fast" as they say it is, its just that games will not benefit. IF you did video rendering of videos in 4k you might actually see significant scaling with an increase in ram speed (ie. 2133-3200 could yield upwards of 10% performance) and if you are a professional rendering and testing rendered scenes 10-15 times a day, this is a significant investment. Also, if you are building a PC and really getting into it, it will eventually become bragging rights.
😛
for me, i collect limited edition GPU's i have a 980 ti MSI Lightning and a 980 ti EVGA Classy annnnd a Power Color Devil 13 295x2. And only the classy is in my build, the rest just sit there because they are "best of the best". Dominator Ram is kinda like that. It is definitely a solid, well build, nice looking ram kit, but its really not worth any extra money in a gaming benchmark. But if you like you like it, and if you are really into it, your allowed to like it
😛
Alright then. We should reset it and begin fresh. I think I’ll wait until Friday to find out if it’s stable (I’m planning to run it at stock tonight and deal with the low FPS for that, plus I’ll be working all day tomorrow, so Thursday is the only day I’ll really focus on it). I’ll keep you updated on the progress. Thanks for your assistance.
For future reference... a RAM speed above 2133MHz mainly matters for bragging, and I should aim for lower latency RAM—C15 or even less?
EpIckFa1LJoN:
TheFluffyDog :
Ok so regarding my RAM speed, the latency times are 15-15-15-36 at 2133MHz and 1.2v. Will this affect performance in XMP 2 with 16-18-18-36 at 3200MHz and 1.35v? Or is it irrelevant?
http://www.techspot.com/review/1089-fall...page6.html
http://wccftech.com/fallout-4-performanc...to-report/
It seems like it doesn’t matter much. The chip also features an integrated memory controller, which means maintaining a lower RAM speed might even unlock additional clock cycles from the core. A difference of 4.5 versus 4.7 on the core will provide significantly more performance than any RAM could achieve. Especially with DDR4 (there are differences in operation, while DDR3 is less impactful for gameplay, but DDR4 is already faster than DDR3, making it even less relevant)
Should I attempt to overclock the RAM to its rated speeds? Since I often struggle to keep the core above 70% during gameplay, I’ll start with the default settings and observe. The benchmarks suggest that a couple hundred MHz of DDR3 RAM can noticeably improve performance in FO4.
yeh i would just focus on stabilizing your core clock first, then enable XMP settings. If you’re like me, I wouldn’t aim for unrealistic speeds if you’re not planning stability tests overnight. Try locking the voltage at 1.33 and gradually increase the multiplier until it fails. Then reduce it one step at a time until it stops. If it crashes again, lower the multiplier further until it no longer fails. For games, the core is most important—don’t get too caught up in other overclocking efforts.
TheFluffyDog :
EpIckFa1LJoN :
Ok so regarding my RAM speed, the latency numbers are 15-15-15-36 at 2133MHz and 1.2v. Will this affect performance when using XMP 2 with 16-18-18-36 at 3200MHz and 1.35v? Or is it irrelevant?
http://www.techspot.com/review/1089-fall...page6.html
http://wccftech.com/fallout-4-performanc...to-report/
It seems like it doesn’t matter much. The chip also features an integrated memory controller, which means maintaining a lower RAM speed might even unlock additional clock cycles from the processor. A 4.5 vs 4.7 core speed will provide significantly more than any RAM could achieve. Especially with DDR4 (there are differences in how DDR4 and DDR3 perform in games, but DDR4 is already faster than DDR3, making it even less relevant)
Should I really try to overclock the RAM to its rated speeds? Since I sometimes struggle to keep the game above 70 in certain parts, I’ll stick to default settings and check the benchmarks. From what I see, a couple hundred MHz of DDR3 RAM can make a noticeable difference in FO4.
yeh i would just focus on adjusting your core clock first, then enable XMP settings. If I were you, I wouldn’t aim for unrealistic speeds if you’re not planning stability tests overnight. Try setting the voltage at 1.33 and gradually increase the multiplier until it crashes. Then reduce it one step at a time until it stops. If it crashes again, lower the multiplier further until it no longer crashes. For games, the core clock is most important—don’t get too worried about other overclocking aspects.
on the CPU or RAM? It looks like I managed a solid OC at 4.7GHz and that’s great. Temperatures are good and I’m pleased with the results. Even with the RAM situation, I expect performance to improve once I reset the RAM to stock.