now that we can run memory frequency faster than htt, is there any benefit in performance in doing this? is there any benefit at all?
very truly yours,
politenessman
now that we can run memory frequency faster than htt, is there any benefit in performance in doing this? is there any benefit at all?
very truly yours,
politenessman
Yeah there is, but not much. There's a review on Anandtech that shows the difference.
A wiseman once said, "If Bible proves the existence of God, then comic books prove the existence of Superheros."
Nope. not worth it and I don't believe its possible. I think you could do it on NF2 platforms, but it gained you nothing.
Currently building my i7 920 rig
i7 920 - Gigabyte x58-UD3R - 6GB Corsair DDR 1600
GTX285 - Intel X25-M + 1.2TB - Watercooled
it is...Originally Posted by DriveEuro
Its no different than running it "1:1" while maintaining a same cpu speed though..
The ram doesnt rely on anything other than the clock speed of the htt to determine the speed.
The memory controller is 1:1 with CPU speed- everything else is seperate. so what most people call "1:1" isn't even close to 1:1.
htt isnt FSB. its a totally seperate bus.
Example: Superpi 1m (all results made up for showing my point)
3ghz CPU- 250HTT- 250mhz memory 1:1- 30s 1M
3ghz CPU- 200HTT - 250mhz memory -30s 1M
The memory controller speed will maintain the 3ghz speed, and memory bandwidth should (mathmatically and theoretically) remain identical .
Last edited by dippyskoodlez; 07-28-2005 at 09:29 AM.
AMD Athlon 64 3700+ @ 300x10________15" Macbook Pro
2x 512mb Mushkin DDR _______________2x 1Gb DDR2
Sapphire X850XT____________________X1600M
DFI Ultra-D_________________________2.16Ghz Merom C2D
Lian-Li PC7A________________________OS X/XP
PCP&C 610w Silencer
Well, how do you force your mobo the ram higher than the bus speed? I know you could do it on NF2 boards, I haven't run accross it on NF4 or NF3...
Currently building my i7 920 rig
i7 920 - Gigabyte x58-UD3R - 6GB Corsair DDR 1600
GTX285 - Intel X25-M + 1.2TB - Watercooled
the latest bios's on epox and dfi mainboards have dividers like 5/4 mem/htt so you can run 250/200 mem/htt. this is amd's support for rqm that is faster than 400, ie your default htt is 200, your ram is pc4000.
very truly yours,
politenessman
![Send a message via MSN to [XC] DragonOrta](images/misc/im_msn.gif)
![Send a message via Yahoo to [XC] DragonOrta](images/misc/im_yahoo.gif)
But would this be helpful on a board that does not like high htt? So you could get the bandwidth that you are able to without worrying about hitting your board's htt ceiling, persay.
A wolf in wolves clothing.
CPU communicates with RAM @ CPU speed.
Intel Core i7 930 @ 4ghz | Gigabyte X58A-UD5 | 6GB G.Skill Ripjaws DDR3 | Radeon 4850 | Crucial m4 128GB SSD
Intel Core i5-2400 | Asus P8H67-M EVO (Waiting to change to Z68) | 8GB G.Skill Sniper DDR3 | 8x2TB Samsung F4-HD204 | OpenIndiana | ZFS raidz2
anand tech as a thread story about this right here, there is some gain but not too much
http://www.anandtech.com/cpuchipsets...oc.aspx?i=2469
It communicates with memory controller at cpu speed.
AMD Athlon 64 3700+ @ 300x10________15" Macbook Pro
2x 512mb Mushkin DDR _______________2x 1Gb DDR2
Sapphire X850XT____________________X1600M
DFI Ultra-D_________________________2.16Ghz Merom C2D
Lian-Li PC7A________________________OS X/XP
PCP&C 610w Silencer
Posting Permissions
Reply With Quote
Bookmarks