Need help understanding RAM speed - Page 2

cyntho · 10-09-07, 11:35 AM

The end of the model # should say SLACR on it.

CaptNKILL · 10-09-07, 03:38 PM

Can we sticky this thread? It basically answers all of the common questions we get from people wanting to upgrade to a core 2.

**john19055** · 10-09-07, 05:25 PM

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 .

**Kain** · 10-11-07, 10:40 AM

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** · 10-11-07, 12:07 PM

BTW, is there any difference with 2 x 2GB vs. 4 x 1GB?

**Kain** · 10-11-07, 07:16 PM

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)?

Libertysyclone · 10-11-07, 08:52 PM

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.

**Kain** · 12-17-09, 06:21 PM

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

10-09-07, 11:35 AM	#13
cyntho Registered User Join Date: Sep 2007 Posts: 72	Re: Need help understanding RAM speed The end of the model # should say SLACR on it.

10-09-07, 03:38 PM	#14
CaptNKILL CUBE Join Date: Jan 2003 Location: PA, USA Posts: 18,844	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

10-09-07, 05:25 PM	#15
john19055 Join Date: Jul 2002 Location: GREENVILLE,TX Posts: 3,851	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+ASROCK X79-Extreme4+16gigs G.Skill PC1600DDR3+2-ASUS DirectCU II GTX-670 in SLI+Crucial 256g-SSD+2- Samsung 1-TB+2-WesternDigtial 640g+LG-12x Blu-Ray Burner+1100w CoolerMaster+Antec-P280 case+50" Plasma PM6700+Logitech Mouse+Keyboard+Pioneer VSX-1020+Polk Audio Speakers

10-11-07, 12:07 PM	#17
Kain Join Date: Oct 2002 Location: Dubai, UAE Posts: 1,264	Re: Need help understanding RAM speed BTW, is there any difference with 2 x 2GB vs. 4 x 1GB?

10-11-07, 07:16 PM	#18
Kain Join Date: Oct 2002 Location: Dubai, UAE Posts: 1,264	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)?

10-11-07, 08:52 PM	#19
Libertysyclone I Lie about MPG Join Date: Jun 2007 Location: SL,UT Posts: 531	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

12-17-09, 06:21 PM	#20
Kain Join Date: Oct 2002 Location: Dubai, UAE Posts: 1,264	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? __________________ Intel Core i7-3930K Corsair Hydro Series H100 with 2 x Scythe GentleTyphoon 1850 rpm fans GIGABYTE GA-X79-UD3 16 GB Corsair Vengeance DDR3 1600 MHz EVGA GeForce GTX TITAN Superclocked Signature Creative Sound Blaster X-Fi Titanium HD Crucial m4 256 GB Western Digital Caviar Black 2 TB Pioneer BDR-206DBK Corsair Professional Series Gold AX850 Corsair Obsidian Series 650D Samsung SyncMaster S23A700D Corsair Gaming Audio Series SP2500 Microsoft SideWinder X4 Logitech G9x Microsoft Windows 8 Pro 64-bit

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Need for Speed: Most Wanted returns with open-world urban racing	News	Latest Tech And Game Headlines	0	06-04-12 07:30 PM
German ISP claims to deliver 4.7Gbps download speed in field test	News	Latest Tech And Game Headlines	0	06-01-12 05:50 AM
9800 GTX and Fan Speed Control	HarryMan	NVIDIA Linux	0	05-25-12 11:50 PM
Program to Identify DDR RAM modules speeds	MUYA	General Hardware	4	10-11-02 11:41 AM
Gainward GeForce4 Ti 4200 and overclocked AGP	Prefect47	NVIDIA GeForce 7, 8, And 9 Series	6	09-16-02 03:50 PM