Go Back   nV News Forums > Hardware Forums > CPUs, Motherboards And Memory

Newegg Daily Deals

Reply
 
Thread Tools
Old 10-09-07, 12:35 PM   #13
cyntho
Registered User
 
Join Date: Sep 2007
Posts: 72
Default Re: Need help understanding RAM speed

The end of the model # should say SLACR on it.
cyntho is offline   Reply With Quote
Old 10-09-07, 04:38 PM   #14
CaptNKILL
CUBE
 
CaptNKILL's Avatar
 
Join Date: Jan 2003
Location: PA, USA
Posts: 18,844
Default Re: Need help understanding RAM speed

Can we sticky this thread? It basically answers all of the common questions we get from people wanting to upgrade to a core 2.
__________________
---- Primary Rig ---- CoolerMaster 690 II Advance - Gigabyte GA-EP45-UD3P - Intel Core 2 Quad Q9550 @ 4.0Ghz + Thermalright Ultra 120 Extreme
6GB DDR2 @ 942Mhz 5-5-5-20 1.9v (2x1Gb Wintec AMPX PC2-8500 & 2x2Gb G.Skill PC2-6400) - EVGA Geforce GTX 470 @ 750/1500/1850 (1.050v)
Sparkle Geforce GTS 250 1Gb Low-Profile (Physx) - Crucial RealSSD C300 64Gb SSD - Seagate 7200.12 500Gb SATA - Seagate 7200.10 320Gb SATA
ASUS VW266H 25.5" LCD - OCZ GameXStream 700W PSU - ASUS Xonar DX - Logitech Z-5500 5.1 Surround - Windows 7 Professional x64
---- HTPC ---- Asus M3A78-EM 780G - AMD Athlon X2 5050e 45W @ 2.6Ghz - 2x2GB Kingston PC2-6400 DDR2 - Sparkle 350W PSU
Seagate 7200.10 320Gb SATA - Seagate 7200.10 250Gb SATA - Athenatech A100BB.350 MicroATX Desktop - Creative X-Fi XtremeMusic
CaptNKILL is offline   Reply With Quote
Old 10-09-07, 06:25 PM   #15
john19055
 
john19055's Avatar
 
Join Date: Jul 2002
Location: GREENVILLE,TX
Posts: 3,859
Default Re: Need help understanding RAM speed

Just get some good DDR2 800 memory ,because running the memory at a higher speed then a 1:1 ratio gains you very little in performance .I ran my E6600 at 3.6gigs and use 800mhz so that it would be at a 1:1 ratio and then ran it at 3.6g at 1200mhz and I think I gained 50 to 100 points more with 3D06 .The 680i SLi IMO just has better stability when useing a 1:1 ratio.But sometimes when you do buy the faster memory like DDR2 1066 ,you are able to run it at lower lactecies at 800mhz .
__________________
Intel i7-3820+Corsair H-100+Gigabyte X79-UD5+16gigs G.Skill PC1600DDR3+2-ASUS DirectCU II GTX-670 in SLI+Crucial 256g-SSD+1-3Gig Seagate+2- Samsung 1-TB+3-WesternDigtial 640g+LG-12x Blu-Ray Burner+850watt XFX+Antec-P280 case+50" Plasma PM6700+Logitech Mouse+Keyboard+Pioneer VSX-1020+Polk Audio Speakers
john19055 is offline   Reply With Quote
Old 10-11-07, 11:40 AM   #16
Kain
 
Join Date: Oct 2002
Location: Dubai, UAE
Posts: 1,264
Default Re: Need help understanding RAM speed

Quote:
Originally Posted by john19055
Just get some good DDR2 800 memory ,because running the memory at a higher speed then a 1:1 ratio gains you very little in performance .I ran my E6600 at 3.6gigs and use 800mhz so that it would be at a 1:1 ratio and then ran it at 3.6g at 1200mhz and I think I gained 50 to 100 points more with 3D06 .The 680i SLi IMO just has better stability when useing a 1:1 ratio.But sometimes when you do buy the faster memory like DDR2 1066 ,you are able to run it at lower lactecies at 800mhz .
So if I get a Q6600 and overclock it to 9 x 400 = 3.6GHz, that would mean 800MHz RAM speed. If I get 800MHz RAM I would have reached it's peak so would it be safer to get 1066MHz RAM in the same situation?

Secondly, you said that if you don't use the max speed of the RAM, you can run it at lower latencies. So will I get better performance with 1066MHz running at 800MHz than 800MHz RAM running at 800MHz? Will the system automatically detect this or will I have to set it myself?
Kain is offline   Reply With Quote
Old 10-11-07, 01:07 PM   #17
Kain
 
Join Date: Oct 2002
Location: Dubai, UAE
Posts: 1,264
Default Re: Need help understanding RAM speed

BTW, is there any difference with 2 x 2GB vs. 4 x 1GB?
Kain is offline   Reply With Quote
Old 10-11-07, 08:16 PM   #18
Kain
 
Join Date: Oct 2002
Location: Dubai, UAE
Posts: 1,264
Default Re: Need help understanding RAM speed

Say I have 800MHz DDR2 RAM that is rated at 3-4-4-15 and 1066MHz DDR2 RAM that is rated at 5-5-5-15. Does that mean if I were to run the 1066MHz RAM at 800MHz, could I beat the timings of the 800MHz RAM running at 800MHz?

Secondly, which would be better with 1066MHz RAM? Running the FSB/RAM (Q6600 clocked at 9 x 400) at 1:1 (1066MHz RAM running at 800MHz) with faster timings or running the FSB/RAM at 1:2 (1066MHz RAM running at 1066MHz) with slower timings (stock timings of 5-5-5-15)?
Kain is offline   Reply With Quote
Old 10-11-07, 09:52 PM   #19
Libertysyclone
I Lie about MPG
 
Libertysyclone's Avatar
 
Join Date: Jun 2007
Location: SL,UT
Posts: 531
Send a message via MSN to Libertysyclone
Default Re: Need help understanding RAM speed

I personally havent seen a big enough difference to justify a large price difference for lower timings. in DDR they made a lot more of a difference.
__________________
System=
Q6600@3.8Ghz/ EVGA 790i Ultra/ EVGA 9800GX2/ and some H20
Libertysyclone is offline   Reply With Quote
Old 12-17-09, 07:21 PM   #20
Kain
 
Join Date: Oct 2002
Location: Dubai, UAE
Posts: 1,264
Default Re: Need help understanding RAM speed

What has been said in this thread, does it also apply to the Intel Core i7 processor? Is the "concept" still the same?
Kain is offline   Reply With Quote

Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need for Speed: Most Wanted returns with open-world urban racing News Archived News Items 0 06-04-12 08:30 PM
German ISP claims to deliver 4.7Gbps download speed in field test News Archived News Items 0 06-01-12 06:50 AM
9800 GTX and Fan Speed Control HarryMan NVIDIA Linux 0 05-26-12 12:50 AM
Program to Identify DDR RAM modules speeds MUYA General Hardware 4 10-11-02 12:41 PM
Gainward GeForce4 Ti 4200 and overclocked AGP Prefect47 NVIDIA GeForce 7, 8, And 9 Series 6 09-16-02 04:50 PM

All times are GMT -5. The time now is 07:27 PM.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 1998 - 2014, nV News.