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memory GSkill TridentX 2400 MHz at Crosshair V Formula and FX-8150 - Page 2

post #11 of 18
@AMD4ME

Thank you, as this was very useful information for me as well, as I am debating over a new Mobo, and Ram or sticking with my crosshair II for a bit longer and just getting higher frequency RAM. Currently I have DDR 800 OC'd to about 900, and I do allot of very high bit rate video editing and rendering, The computer trucks through it at reasonable speeds, but when I start adding just about any effects the playback is very sticky. Would a DDR3 system show much improvement over me just going with DDR2 1200 MHZ Memory? Any advice would be appreciated.

Crosshair II Mobo
1090t Processor
465GTX GPU
4GB 800mhz DDR2
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post #12 of 18
goojah-

Thanks for your complement.

It's difficult to predict exactly how much gain you would see from moving from DDR2-1200 to DDR3-1333 but I suspect the gain would not necessarily justify the expense for a new mobo just to use DDR3.

The link below shows you the DDR3 specifications. In theory if your PC can actually use the full bandwidth over a high percentage of time, not just in bursts, then DDR3 @ 1333 MHz. could show a significant improvement - at a price, but in reality the RAM by itself is not the limiting factor in your system - the CPU/GPU are also limiting performance for video editing.

http://en.wikipedia.org/wiki/DDR3_SDRAM

Personally I'd probably stick with what you have and see how things look in '13 when there should be some more significant performance gains with CPU/GPU performance.
post #13 of 18
AMD4me, I really appreciate the response. My goal since buying this board 3 years ago was to wait for DDR4, but after getting a GH2 camera and hacking it to 150MB/s my needs for ridiculous muscle changed quickly. This computer doesn't hickup at anything except video editing these massive files, so I think I will take your advice and do all I can to hold out for a DDR4 board. Now the hunt for reasonably priced DDR2 1200 begins, and then the fun of OCing it thumb.gif
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post #14 of 18
I'm glad to help goojah!

You may not need DDR4 even with your large files? We'll need to wait and see but with DDR3 not causing a bottleneck @ ~1333 MHz. and AMD already at 1866 MHz. and going to 2133 MHz., DDR4 may not be needed for 3-4 more years?

Hopefully you can find some cost effective DDR2 1200 MHz. to hold you over.
post #15 of 18
Quote:
Originally Posted by AMD4ME View Post

I'm glad to help goojah!
You may not need DDR4 even with your large files? We'll need to wait and see but with DDR3 not causing a bottleneck @ ~1333 MHz. and AMD already at 1866 MHz. and going to 2133 MHz., DDR4 may not be needed for 3-4 more years?
Hopefully you can find some cost effective DDR2 1200 MHz. to hold you over.

Question for AMD4me, I have 4x 2gb kingston hyper genesis x 1600mhz ram on a crosshair V formula motherboard, do you know any possible reasons why I cant get 1600mhz with all 4 chips in place but if I have 2 chips it will run at that speed no problem, Am I doing something wrong? and will it actually make any difference to the speed of my PC? My general usage is gaming.

Thanks in advance for any advice you migt have
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post #16 of 18
Quote:
Originally Posted by Stoffie View Post

Question for AMD4me, I have 4x 2gb kingston hyper genesis x 1600mhz ram on a crosshair V formula motherboard, do you know any possible reasons why I cant get 1600mhz with all 4 chips in place but if I have 2 chips it will run at that speed no problem, Am I doing something wrong? and will it actually make any difference to the speed of my PC? My general usage is gaming.
Thanks in advance for any advice you migt have

Stoffie-

I would contact Asus to see if this is a BIOS issue. Some mobo makers restrict OC'ing of the RAM when all four DIMM slots are populated.

As far as speed for gaming, extensive indpendent testing on both AMD and Intel desktop PCs shows that you will not see any significant performance gain in real applications when going from 1333 MHz. RAM frequency to 1600 MHz. Llano APU powered systems will show some gains as the GPU section can use the higher frequency. In the link below OCN member "damric" went from 1333 MHz. to 2000 MHz. on an FX-4100 and even lowered the latency @ 2000 MHz. and did not get any significant gain in gaming performance in Far Cry 2.

DDR3 RAM @ ~1333 MHz. is not a system bottleneck for typical AMD/Intel desktop PCs and thus the only gains you see when the RAM is run at frequencies above ~1333 MHz. is from the small change in real time of one clock cycle as bandwidth isn't an issue. Unfortunately as frequency increases a clock cycle decreases in real time, so lower latencies or higher frequencies produce only minute gains in real applications. Synthetic benches show theoretical gains that do not represent the real application performance gains people normally see.

See the link below for more info.

http://www.overclock.net/t/1237178/is-o-cing-my-ram-worth-the-trouble/10#post_16866022
post #17 of 18
@ AMD4ME

Thanks for that advice, I have dug around and found that the bios version in my 1 month old crosshair v formula is 6 (yes 6) bios updates out of date.

I have flashed the board with the latest bios and straight away it recognised the ram at 1600mhz, I have run a benchmark on f1 2011 and found that my FPS has increased from 50 to 53 and as per your post I can't tell the difference.

So not only have you cured my ram issue but I should be able to put a piledriver chip straight in there when it is released thumb.gif
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Corsair Vengeance 16gb 1866mhz Mushkin 120 GB SSD kingston 120gb ssd xspc 
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post #18 of 18
Quote:
Originally Posted by Stoffie View Post

@ AMD4ME
Thanks for that advice, I have dug around and found that the bios version in my 1 month old crosshair v formula is 6 (yes 6) bios updates out of date.
I have flashed the board with the latest bios and straight away it recognised the ram at 1600mhz, I have run a benchmark on f1 2011 and found that my FPS has increased from 50 to 53 and as per your post I can't tell the difference.
So not only have you cured my ram issue but I should be able to put a piledriver chip straight in there when it is released thumb.gif

Great ! Where do I send the bill to... biggrin.gif

FYI- With the FX CPUs there are quite a few BIOS updates as the mobo makers slowly learn all the nuances of the completely new FX CPU architecture.

Also note that you will NOT be able to just plug a Piledriver CPU in and have it recognized until you update to a BIOS version that has the proper CPU I.D. info. for the Vishera/Piledriver CPUs.

Look for a new BIOS just before Vishera/Piledriver CPUs are released in ~Q3/Q4 of 12.
Edited by AMD4ME - 6/21/12 at 3:50pm
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