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G Skill Memory underperforming

post #1 of 12
Thread Starter 
Hi, I have 2 G.Skill 4GB DDR3 2400MHz TridentX Memory running dual channel, and they seem to be very much underperforming.
CPU: AMD A10 7850k
Motherboard: ASRock FM2A88X Extreme4+


From CPU-Z, the RAM seems to be set up and running correctly right? 10-12-12-31 @1.65V are the suggested timings, and I just used the XMP defaults.
But from Performance Test 8.0 the memory seems to be much slower than what I would expect.
Because I'm not really sure what it is I'm doing, am I right that the results are not as good as they should be? If so, are my RAM settings correct, or am I testing in the wrong way? Could it be that something is bottlenecking it, and needs to be changed from BIOS? Or is my RAM or mobo faulty?
Any help would be greatly appreciated, Thanks!
post #2 of 12
My memory benchmarks appear like that as well(inferior to all but the slowest) in PerformanceTest, I assume that the results you see with other memory modules are from a different Ptest version and making the point calculation was different in that version. (maybe)

Use a different benchmark I guess? thumb.gif
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post #3 of 12
Thread Starter 
Thanks for your reply, I just tried MaxxMEM and Geekbench 3, and they also showed that my memory copy speed is about 10GB/s, which I think is low? For windows 7's Windows Experience Index, my RAM subscore is just 7.4, which I think is also quite low? Should I be worried, because I am quite fustrated at my RAM :/
post #4 of 12
I will not say for certain whether or not your cpu has anything to do with your memory scores but read this
I will try to confirm it later, when I get home.

more information: Best solution
Tradesman1ac1617} Memory November 4, 2013 10:54:20 PM
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Pretty much, the MC (memory controller) in AMD CPUs is weaker than Intels and AMD doesn't put much into R&D, the optimize for only using 2 sticks of DRAM and in smaller amounts "
Edited by Truedeal - 4/16/14 at 7:33am
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Kingston SSD(now) 96GB WD Green 1TB Crucial MX300 750GB LG Electronics 14x Internal BDXL 
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Hyper 212+ Push/Pull Windows10 Home Premium 64 Bit ASUS VN289 Azio Large Print Tri-Color Backlit Wired Keyboard 
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AMD FX 6300 @ 4.80 GHz Gigabyte 990FXA UD3(Rev 4.1) MSI Gaming R9 270X 2GB @ 1350/1500 16GB of stuff 
Hard DriveHard DriveHard DriveOptical Drive
Kingston SSD(now) 96GB WD Green 1TB Crucial MX300 750GB LG Electronics 14x Internal BDXL 
CoolingOSMonitorKeyboard
Hyper 212+ Push/Pull Windows10 Home Premium 64 Bit ASUS VN289 Azio Large Print Tri-Color Backlit Wired Keyboard 
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post #5 of 12
Thread Starter 
Hm.. so is there anything I can do about it? And would that mean I get even lower RAM bandwidth on lower freq, or will it be the same even if I go back to like 1333MHz or something. Thanks for your reply by the way!

If anyone has a 7850k and could test their RAM out for me that'd be really nice biggrin.gif
post #6 of 12
Quote:
Originally Posted by wrtIAp View Post

Hm.. so is there anything I can do about it? And would that mean I get even lower RAM bandwidth on lower freq, or will it be the same even if I go back to like 1333MHz or something. Thanks for your reply by the way!

If anyone has a 7850k and could test their RAM out for me that'd be really nice biggrin.gif

Later on today, I will also toy with my Northbridge frequencies to see if it has any correlation with memory performance.
I don't know, at this point I kind of want to know why my memory performance is "low" compared to others as well.

I will also post my ptest 8 results later on.
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CPUMotherboardGraphicsRAM
AMD FX 6300 @ 4.80 GHz Gigabyte 990FXA UD3(Rev 4.1) MSI Gaming R9 270X 2GB @ 1350/1500 16GB of stuff 
Hard DriveHard DriveHard DriveOptical Drive
Kingston SSD(now) 96GB WD Green 1TB Crucial MX300 750GB LG Electronics 14x Internal BDXL 
CoolingOSMonitorKeyboard
Hyper 212+ Push/Pull Windows10 Home Premium 64 Bit ASUS VN289 Azio Large Print Tri-Color Backlit Wired Keyboard 
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CPUMotherboardGraphicsRAM
AMD FX 6300 @ 4.80 GHz Gigabyte 990FXA UD3(Rev 4.1) MSI Gaming R9 270X 2GB @ 1350/1500 16GB of stuff 
Hard DriveHard DriveHard DriveOptical Drive
Kingston SSD(now) 96GB WD Green 1TB Crucial MX300 750GB LG Electronics 14x Internal BDXL 
CoolingOSMonitorKeyboard
Hyper 212+ Push/Pull Windows10 Home Premium 64 Bit ASUS VN289 Azio Large Print Tri-Color Backlit Wired Keyboard 
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post #7 of 12
Are all of those other results gathered on an AMD CPU? They could have been measured with an Intel chip which is far quicker as far as I know.
post #8 of 12
You could download MaxxMEM² and test your memory bandwidth with that tool, then you could compare your results in this thread:

[Official] AMD MaxxMEM Results/Rankings
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post #9 of 12
Thread Starter 
I contacted G.Skill and they said AMD generally has slower memory controllers. Is there any way I can overclock any part of the CPU or is its speed pretty much fixed?
post #10 of 12
CPU-NB has an effect. 7750k is 2400 stock I think. 7850k is gonna want 2133/2400 ram, 1333/1600 will be noticeably slower. You could try upping CPU-NB and see how that changes or helps. You could probably get 2600 easy.
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