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Satis
Felix Rex
Joined: Fri Mar 28, 2003 6:01 pm Posts: 16701 Location: On a slope
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 memory effect on performance
I ran into this article and extreme tech and found it an interesting read. It compares games and application performance based on quantity of memory (2GB/4GB), type (DDR2/DDR3) and frequency. I was actually curious about these comparisons as well so I thought I'd post it.
http://www.extremetech.com/article2/0,2 ... X1K0000532
I found it kinda funny...in one part they show Crysis performance based on frequency... the highest frequency showed a 9fps improvement over the next lowest, but the text claimed performance was flat. 
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Tue Aug 26, 2008 9:26 am |
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Rinox
Minor Diety
Joined: Mon Mar 31, 2003 7:23 am Posts: 14892 Location: behind a good glass of Duvel
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yeah, what's up with that? I didn't get that chart anyway...the performance didn't change between 667 and 800 and then jumps up 10 FPS on the 1066? That doesn't make any sense from a logical pov.
Anyway, seems like I'll be getting a rig with 4 gig soon. 6 if I feel like it.  None of that fancy schmanzy DDR3 1066 ram that costs an arm and a leg.
_________________ "I find a Burger Tank in this place? I'm-a be a one-man cheeseburger apocalypse."
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Wed Aug 27, 2008 4:44 am |
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Peltz
Stranger
Joined: Sat Apr 12, 2003 1:14 pm Posts: 6420 Location: Estonia
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3 is enough for pretty much any kind of gaming. It might be cheaper to buy 4 though as the ones in pairs come cheaper. Anyway the idea is that 2gb plus the amount of ram your gpu has.
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Wed Aug 27, 2008 8:30 am |
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tyranus
Emperor
Joined: Tue Apr 01, 2003 3:42 am Posts: 2005 Location: Under my wife AND son's thumbs.. in essex! chavs! everywhere!!
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See, this is the reason I went with 4 Gig 
_________________ Sleep deprivation for teh lose
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Wed Aug 27, 2008 1:56 pm |
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RB
Emperor
Joined: Wed Apr 16, 2003 1:25 am Posts: 2560
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I found it impossible to work with larger soundfonts if it happen that one has to be kept on two or more sticks. It just fails to load or crashes the system. I guess it is good that I have 2x 1GB and no SF2 module larger than 700MB (~300MB used by OS + other software).
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Thu Aug 28, 2008 9:45 am |
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Peltz
Stranger
Joined: Sat Apr 12, 2003 1:14 pm Posts: 6420 Location: Estonia
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The test they ran isnt very good to base ones conclusions on. The rig was a bit too powerful and the memory specific problems fail to appear in my opinion.
The processor efficency depends on how fast it can fetch data from RAM but the rigs have enough raw power to hide this plus they used a quad cpu with 2,5ghz which by itself is quite lazy processor. A dual core 4ghz might've shown a better difference in memory speeds. Today though i dont see any reason to go beyond 800mhz RAM speed. The multicore cpu's aren't just fast enough to need more. And then theres the cas latency which is a bit of mysterie but just in case go for CL4 if want to spend some extra, CL5 is usually noticeably cheaper, atleast here.
_________________ When someone asks how rich you are, quote Rinox " I don't even have a rusty nail to scratch my butt with...!"
Be well or Get Help!!
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Thu Aug 28, 2008 11:54 am |
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Satis
Felix Rex
Joined: Fri Mar 28, 2003 6:01 pm Posts: 16701 Location: On a slope
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Back in the days of the athlon (1.2ghz era) caz latency and memory frequency made a huge difference. I build rigs with aggressive memory timings because it really did make a difference. Now... not so much I don't think. My current box is running on 800mhz RAM.
btw, if you're goingt to want more than ~3GB of RAM, you need to be running a 64 bit O/S. Which means Vista. Just keep that in mind. You can have 6GB of memory installed in Windows XP, but it'll only see and use around 3GB.
At any rate, it looks like going for decent, 800mhz RAM is probably fine unless you're looking at doing serious overclocking. With overclocking you need RAM that can scale frequency, since you'll be increasing the FSB speed. However, I don't see myself overclocking, so it's a nonissue.
What I'm really excited about is solid state drives.  Once a 128GB high performance drive drops below $400, I think I'll be acquiring one.
_________________ They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
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Thu Aug 28, 2008 9:12 pm |
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tyranus
Emperor
Joined: Tue Apr 01, 2003 3:42 am Posts: 2005 Location: Under my wife AND son's thumbs.. in essex! chavs! everywhere!!
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Not necessarily, the RAM frequency can be set independently from the FSB by adjusting the divider, my Q6600 is overclocked to 3Ghz, 333FSB on a x9 multiplier and the RAM is set to 800Mhz using this method. If I left the divider at stock it would be nearly 900Mhz on the RAM which would = Epic fail
But yeah, 1066Mhz would allow more headroom and a smaller divider.
_________________ Sleep deprivation for teh lose
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Fri Aug 29, 2008 12:30 am |
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Satis
Felix Rex
Joined: Fri Mar 28, 2003 6:01 pm Posts: 16701 Location: On a slope
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yea, ok, you're right...it a combination of multiplier and FSB speed. But by having a higher cap to your FSB you get more leeway with how you set your multiplier. 
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Fri Aug 29, 2008 7:54 am |
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Mole
Minor Diety
Joined: Fri Apr 11, 2003 5:09 pm Posts: 4004 Location: Walsall, West Mids, UK
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Which is why I hate Microsoft! I purposefully bought vista for it's 64bitness.
I get it home, open it up - you have to send of another fucking £10 to get the 64bit version! This bastard cost me £140 in the first place.
The disc turns up, and guess what! It crashes durin installation and for some reason, I can only install 32bit vista.
Fucking pricks.
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Fri Aug 29, 2008 9:46 am |
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RB
Emperor
Joined: Wed Apr 16, 2003 1:25 am Posts: 2560
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It sounds like M$ provides no technical support even for those who paid their copy.
Btw, I feel embarrassed. This is a kind of topic I can't contribute on the tech-level although I should be able to.
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Fri Aug 29, 2008 10:29 am |
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tyranus
Emperor
Joined: Tue Apr 01, 2003 3:42 am Posts: 2005 Location: Under my wife AND son's thumbs.. in essex! chavs! everywhere!!
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Agreed 
_________________ Sleep deprivation for teh lose
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Fri Aug 29, 2008 12:57 pm |
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Satis
Felix Rex
Joined: Fri Mar 28, 2003 6:01 pm Posts: 16701 Location: On a slope
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lol @ Mole. I feel your pain. Being in school and working for a Microsoft partner company, I get access to cheap and free software. I tried installing 64 bit Vista on my media pc back when I had to wipe it and no-go...it locked up during install twice. I then just installed XP.
Still, XP is starting to age. I can only hope that Windows 7 releases on time and isn't a total pile of crap.
_________________ They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
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Sat Aug 30, 2008 9:26 am |
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Rinox
Minor Diety
Joined: Mon Mar 31, 2003 7:23 am Posts: 14892 Location: behind a good glass of Duvel
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The sad thing is, you didn't actually believe that would be the case when you typed that. And neither does anyone else on this planet. 
_________________ "I find a Burger Tank in this place? I'm-a be a one-man cheeseburger apocalypse."
- Coach
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Mon Sep 01, 2008 2:22 am |
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Peltz
Stranger
Joined: Sat Apr 12, 2003 1:14 pm Posts: 6420 Location: Estonia
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Update memory chart. 6gb still pointless, 12gb is ridiculous and wallet suicide.
http://www.tomshardware.co.uk/memory-mo ... 31549.html
_________________ When someone asks how rich you are, quote Rinox " I don't even have a rusty nail to scratch my butt with...!"
Be well or Get Help!!
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Thu Apr 16, 2009 1:45 pm |
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