Archived

This topic is now archived and is closed to further replies.

jackcnd

Should I Upgrade RAM : 1600 c9 to ?

Recommended Posts

Just built a new system wondering if I should exchange the RAM for something better.

The system is a 2700K at 4.8 on a P8Z68.

 

Ram is 2x4GB of GSkill 12800 / 1600 Cas 9-9-9-24 2t 1.5v was all they had at the time.

Tried to run it at 8-8-8-24 with no luck.

 

Now they have some Dominators 2x4GB 1600 8-8-8-24 1.5v,

Or I could order some GSkill 1600 7-8-8-24 or other higher speed.

 

Would appreaciate any suggestion / comments...

 

 

Share this post


Link to post
Share on other sites
Help AVSIM continue to serve you!
Please donate today!

The best choice is to get some fast CL10 or 9 RAM running at 2133MHZ that runs at 1.5Volts. THIS RAM would be awesome.

Share this post


Link to post
Share on other sites

How is 10-11-20-28 RAM faster than say 7-8-7-24-1T 1600 Mhz??

 

Sigh... People may get tired of me linking to this all the time, but I discovered Nick and Simforums in 2009 when I started FSX (short time, yes) - and I still am convinced he has the best knowledge about both hardware and FSX. (Most of the advise floating around or popping up here is pure b... - sorry)

 

"if 2133 was 9-9-9 or 9-10-9 then 2133"

 

Please read and learn, ok?

 

http://www.simforums...topic41484.html

Share this post


Link to post
Share on other sites

Thanks for the replies...

 

What the guides often recommend is no longer for sale, I'm finding.

 

In 4gbx2 kits 1.5v on the market I find :

 

1600 9 9 9 24 2t $50

1600 8 8 8 24 2t. $60

1600 7 8 8 24 2t $80

 

Is there going to be a noticeable gain by spending more given those choices?

 

 

 

 

 

 

Share this post


Link to post
Share on other sites

You may get faster RAM but will it make a difference?

In a SB rig the front side bus FSB is fixed at 100MHz so whatever speed RAM you install you will still have the same constant speed between the cpu and RAM.

IMHO (especially in SB) trying to utilise low-latency high speed memory just isn't worth the effort.

Cast your mind back the 1366 series i7 9xx which you could overclock the FSB and hence faster RAM could be a benefit and they used Triple Channel DDR3 RAM which has 3 channels of transfer between the cpu and RAM. The along comes SB and guess what they use Dual channel DDR3 RAM ie they have lost one transfer channel between the cpu and RAM and guess what they wipe the floor, performance wise, with the i7 9xx series (clock speed vs clock speed).

So if RAM speed etc was important why was triple channel DDR3 dropped after just one outing?

As I say this is just an opinion.

Regards

PeterH

Share this post


Link to post
Share on other sites

(Most of the advise floating around or popping up here is pure b... - sorry)

 

...

 

Please read and learn, ok?

 

Seriously AliB? Take the time to test a couple of configurations and let us know what YOUR advise is then.

Share this post


Link to post
Share on other sites

Just to follow up, my original ram was GSkill 1600 9-9-9-24 2T 1.5v

and if I tried to improve the timings it ran into issues.

 

I swapped it for some Corsair Vengeance 1600 8-8-8-24 2T 1.5v.

It seems much more flexible with adjusting speed and timings.

Tried it at 1600 8-8-8-24 1T and 1866 9-9-9-24 2T without issue.

 

The 1866 setup gives the best AIDA64 results, with 41.8 latency, 21800 read speed.

I'm not convinced any of this makes a demonstrable difference in FSX or Flight.

 

Anandtech's Sandy Bridge Memory Scaling piece is worth reading on the matter.

Share this post


Link to post
Share on other sites

I upgraded from 1600 CL9 to 2133 CL9, and i noticed a slight decrease in microstuttering, so there is now just a little bit more smoothness. I gained around 2 FPS. Also, the main thing effecting FPS is the clockspee,d not really the CAS latency. For example when I run a test, 1600 CL9 = same FPS as 1600 CL7, but 2133 CL9 is 2 more FPS and 2133 CL11, also those 2 more FPS. However, with 2133 CL11 instead of 2133 CL9, I get slightly more microstuttering.

 

But I think with Word Not Allowed's tweak, fast RAM isn't that important anymore...

 

Remember, the LOWER the CAS Latency number, the FASTER the RAM.

 

If you want to upgrade, I recommend Corsair. They run fast and at relatively low voltages.

Share this post


Link to post
Share on other sites

but 2133 CL9 is 2 more FPS and 2133 CL11,

 

Interesting find. - I am going to up my RAM frequency from 1866 to 2133 and loosen my timings a bit.

Share this post


Link to post
Share on other sites

Too bad my Corsair won't do 2133@CL9, even for testing.

 

But one little nitpick I took from that thread from NickN, is setting the Command Rate to 1T instead 2T, and with that, I gained 1-2ms on latency. Not a huge thing (and I still have to test it out for the stability), but I would be interested how much latency change did Arjen have going from CL11 to CL9 on 2133 RAM.

 

I measured with AIDA64 Cache and Memory Benchmark.

 

Btw. Nick said 42ns-47ns, my latency is now 41ns.

Share this post


Link to post
Share on other sites

Too bad my Corsair won't do 2133@CL9, even for testing.

 

Nor will mine. - Do you have Corsair XMS3 by chance?

Share this post


Link to post
Share on other sites

 

Nor will mine. - Do you have Corsair XMS3 by chance?

 

I think I do.

 

 

Sent from my iPhone using Tapatalk

Share this post


Link to post
Share on other sites

Seriously AliB? Take the time to test a couple of configurations and let us know what YOUR advise is then.

 

+1

 

I think I do.

 

 

Sent from my iPhone using Tapatalk

 

That explains our issues when attempting to push our RAM to 2133. The XMS3 series isn't geared for the OC enthusiast.

Share this post


Link to post
Share on other sites

Ben, I am curious...what settings are you using to get your corsair sticks to 1866? My system is similar to yours, but I can only get mine to 1600...not 1866? We have the same RAM and I was wondering...

Share this post


Link to post
Share on other sites

Ben, I am curious...what settings are you using to get your corsair sticks to 1866? My system is similar to yours, but I can only get mine to 1600...not 1866? We have the same RAM and I was wondering...

 

By default, my RAM runs @ 9-10-9-27-2T @ 2000MHZ.

 

But, due to the SB mem controller, I can only go 1866 or 2133. Since 2133 is not stable, I just dropped my DIMM speed to 1866MHZ.

Share this post


Link to post
Share on other sites

@BenCap & Dazz:

 

Nah, I´m not in 100% geekmode right now, trying to run a hog-farm, nice to get down in the dirt! (My name is Ali and I´m a pigfarmer, hehe..! )

 

Why should I fork out $$$ for various RAM, when I can read the advise and experience from experts?

 

IMO the GSkill CL7 1600 Mhz 1T 1.60V are doing fine, no problems at all...

 

It´s all about a fluid sim experience, 2-3 FPS more or less is not important.

Share this post


Link to post
Share on other sites

 

It´s all about a fluid sim experience, 2-3 FPS more or less is not important.

 

I don't want MORE FPS. I lock at 30FPS and for the most part, I never loose 30. I just want to help add a few frames for when my FPS do drop down into the mid 20s.

 

I likely will be buying some Corsair Vengeance to use with this system later down the road. RAM is dirt cheap now...

Share this post


Link to post
Share on other sites

Well, the endless chase for that perfect FSX experience, right??

 

I came from a Phenom 9650 2.3 Ghz Quad, to an insanely clocked Q6600 @ 3.8 Ghz, to an i5 2500K @ 4.7 Ghz with good, solid performance.

 

Now I quit, I don´t chase anymore illusive "FSX Dream" - it will never be there IMO...

 

From "The Gospel":

 

"There is no such thing as an absolutely FLAWLESS running MS Flight Simulator. There will always be some point in a flight where a glitch or a stutter of some type will be seen. How frequent and with how much tenacity those may appear depend on everything from the hardware choices and setting up the system from the BIOS to the drivers, to user demand on scenery eye candy, to the addon scenery and payware aircraft manufacture QC for performance. If you are looking for perfection you will never find it. The application is archaically coded and as such will never perform flawlessly in all circumstances and conditions, which change constantly moment to moment during a flight even with identical system hardware."

 

http://www.simforums...topic41484.html

 

I´m at peace now, oink...

 

:Pig:

Share this post


Link to post
Share on other sites

 

Now I quit, I don´t chase anymore illusive "FSX Dream" - it will never be there IMO...

 

I never said I wanted a perfect FSX. I simply would like to have the best possible configuration. I would rather have the best of every part of my system rather than having a bottleneck.

Share this post


Link to post
Share on other sites