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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 869

post #8681 of 67491
Quote:
Originally Posted by stickg1 View Post

Quote:
Originally Posted by cssorkinman View Post

Yup

Nice!! Good work!
Quote:
Originally Posted by Alatar View Post

Of course optimizations make a fair bit of difference but you can't just write off hardware advantages. Would have been interesting to see what a 3930K at 5ghz could do in linux instead of comparing it at a 1ghz lower speed than the FX and in windows. The clock speed difference alone is about 30%.

Yes the FX series looks better in a linux environment than a windows one but lets be real here, it doesn't even nearly mean that it blows every intel chip out of the water.

Yeah that's kind of a silly comparison. He didn't even show the times for the 3930K in Linux.

It's kind of like, my car is faster than your car, when you're on an ice covered road and I have hot asphalt. Doesn't mean much.

Anyone do any DICE or LN2 overclocking with their PD? What's the max validation so far?

Any crazy memory OC's? 3000MHz+??
Go to hwbot.org to see that.
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post #8682 of 67491
Quote:
Originally Posted by Krusher33 View Post

Go to hwbot.org to see that.

Trouble is I'm terribly lazy, but thanks for the suggestion.
post #8683 of 67491
Quote:
Originally Posted by itomic View Post

"For me , 50'sC is where stability issues can begin do what ever you can to keep it cooler. Are you running push pull on that H-100?
What level of LLC are you using? What is your voltage at load? If you don't know, try running OCCT and check the graphs it makes."

Thats just nonsense. CPU will not loose stability caused by heat in 60`s and my start to loose it in 70`C, but for sure it will not in 50`C. AMD treshold is 62C and that menas that CPU will be absolutely stable heatwise up to 62C. They said that 62C is set way below real treshold when CPU can be unstable for safety precautions.

I will absolutely stick with what I said 50+ ( and its been that way for nearly every amd chip I have had since my FX-55 ) is where the trouble starts , you are most welcome to disagree smile.gif
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post #8684 of 67491
Hey folks, as some of you may recall ComputerRestore asked if anyone could run tests using a lowered CPU/NB Frequency & Voltage to see if higher overclocks could be made with a reduction in CPU VCore and temps. I have now run a more conclusive series of tests and the results are in for you all to view and disuss if you wish.

If you wish to learn more then please feel free to visit the following thread here on OCN >

http://www.overclock.net/t/1361667/amd-fx-series-8350-8320-overclocking-experiment/0_20

I did not post here as it is rather long and would become lost in the thousands of pages. I hope it will prove informative and helpful to you fellow FX Overclockers.

Any questions feel free to ask me or ComputerRestore. Thanks All smile.gif
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post #8685 of 67491
Quote:
Originally Posted by cssorkinman View Post

I will absolutely stick with what I said 50+ ( and its been that way for nearly every amd chip I have had since my FX-55 ) is where the trouble starts , you are most welcome to disagree smile.gif
I have to agree, 50+ is where i have found things starting to flake out. There's a world of difference between quoting a spec and actual real world experience. Especially when you're pushing your hardware to it's limits. Nice score btw! thumb.gif
    
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post #8686 of 67491
Quote:
Originally Posted by Alatar View Post

Of course optimizations make a fair bit of difference but you can't just write off hardware advantages. Would have been interesting to see what a 3930K at 5ghz could do in linux instead of comparing it at a 1ghz lower speed than the FX and in windows. The clock speed difference alone is about 30%.

Yes the FX series looks better in a linux environment than a windows one but lets be real here, it doesn't even nearly mean that it blows every intel chip out of the water.

Yeah, I know. I wish I had a Bridge to benchmark against here. I can try and justify buying one and turning it into a render node, but it wouldn't be worth it unless I got an HT version of a Bridge, and at that point I'm spending $100 more than on an FX for the same performance (or possibly worse in Gentoo, Intel's FMA instruction set is inferior to AMD's and AMD has SSE5 while Intel doesn't) in the same task.

If there was another Linux user who could at least compile Blender on their own with the right CFLAGS, I would have no problem handing out my blender benchmark file. It's just a .blend file you can use in any version of blender (for cross-platform testing).

EDIT: After thinking about this the whole state of x86 and CISC is kind of broken. The advantage of x86 and CISC is to use complex instructions to speed up performance. Instead, no one uses the new instructions and we are forced to depend on IPC and how fast a chip is at executing older instructions. At this point we might as well just use RISC and worry about IPC of a few basic instructions. I'm kind of surprised Intel isn't hyping new instructions and pushing out specialized instructions on x86 platforms to give an advantage over x86 over ARM. If Intel is more concerned about ARM than AMD, I would think they would want to shove AVX, FMA, etc down everyone's throats and get that on as many machines as possible, and then start some sort of FUD campaign like "ARM is terrible, it doesn't have any sort of advanced instructions to speed things up and it just brute forces everything". Whether that's true or not is irrelevant, but people would eat that up if they were deciding against an ARM netbook or an x86 one.

All of this focusing on the lowest common denominator of instruction set and focusing on how well a CISC process works with ancient instructions (x87 being used in PhysX and Skyrim rings a bell) makes me feel like the x86 ecosystem is in a seriously bad position. x86, as a CISC chip, should be pushing new instructions and adoption of those to speed things up, not raw performance increases.
Quote:
Originally Posted by kahboom View Post

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile]
"NetworkThrottlingIndex"=dword:ffffffff
"SystemResponsiveness"=dword:00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile\Tasks\Games]
"Scheduling Category"="High"
"SFIO Priority"="High"
"Background Only"="False"
"Priority"=dword:00000001
"Clock Rate"=dword:00002710
"GPU Priority"=dword:00000001
"Affinity"=dword:00000000

So since my cpu does not like to go much higher than 4.8ghz i have been exploring options or fine tuning for what it will handle, after reading about this tweak it really did not do much for me however after playing with it and visiting microsofts website and reading about it the Priority of 1 is the lowest and 8 is the higest so i tested it out and it recieves a slight boost for the cpu, no voltages changed no ram differences or gpu changes just changed the priority to 8 set the gpu priority to 8 as well for the hell of it but it really does not do any thing anyways the bottom was stock unaltered and the top two runs are with the tweak applied

Is there any interest in a tweak program that changes parameters like this? I could make one in a few days, specially if you guys feel like buying me beers in exchange for the tweaker.
Edited by sdlvx - 2/17/13 at 11:10am
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post #8687 of 67491
Quote:
Originally Posted by Alatar View Post

Creeping closer to 9.5 in cine:


very nice Alatar, only for my feeling to high voltage. I assume, you had very cold temps in room or something similar...I tried with cold air and my chip can 5400 MHz Cinebench with 1.565V (and still only AMD liquid set), so "only" +60 MHz higher than with normal ambients. Need some time for LN2 again, hope April will be the right month;)
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post #8688 of 67491
Quote:
Originally Posted by hotrod717 View Post

I have to agree, 50+ is where i have found things starting to flake out. There's a world of difference between quoting a spec and actual real world experience. Especially when you're pushing your hardware to it's limits. Nice score btw! thumb.gif

I have felt this 50c - 55c hill as well. In fact my current 1100t has this exact hill. It just so happens that it hits this hill at 4.0 @ 1.48- 1.5v. I can top out a 55c stable in all tests. It takes a LOT of voltage to climb over that hill and the heat becomes less of a factor as I can maintain stability @ 1.6v 2 4.2ghz. The trade off is 65- 68c temps. I could cool it more, but the wattage and lack of performance from 4 to 4.2 is not worth the added expense overall.

But as it stands, I'm not a very heat concerned overclocker. I know cooler = better, but I've run AMD chips in the 70c range at max load on 24/7 overclocks for a LONG time, and never had an issue. In fact my server chip is a PII 940 ddr2 chip I got from launch and has run @ 3.6ghz @1.6v 2400mhz nb 68c max load though 3 systems and now in its final home in the server. The chip is still as stable and capable as the day I bought it.

Its just a matter of "IF" you want to climb that hill or not... (and whether or not you have a chip that has something worth climbing that hill for)
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post #8689 of 67491
Quote:
Originally Posted by hotrod717 View Post

I have to agree, 50+ is where i have found things starting to flake out. There's a world of difference between quoting a spec and actual real world experience. Especially when you're pushing your hardware to it's limits. Nice score btw! thumb.gif

Thanks,
That's about as far as I want to take it on water cooling (ambient was about 20F). Don't try that at home kids wink.gif
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post #8690 of 67491
Quote:
Originally Posted by Alatar View Post

In terms of overclocking, yes. SB and SB-E are just plain boring to OC since they don't scale with cold, can't take the volts, have a max multi that you just hit and can't go over etc.

But obviously the intel rig is the one that performs better.

Not obvious at all. Depends if you are running poorly designed single-threaded apps. There very little on my computer that is single threaded. I use Photoshop, Premiere, winzip, my games are all multi-threaded: Hitman, Far Cry 3, Battlefield 3, Galactic Civilizations II of various flavors,etc. I see big performance gains especially with Vishera. I doubt there is any significant improvement at all even if I had a
I7 3770K.
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