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 RAM - Timing vs Clock Speed, Which is more important?

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antonio
post Dec 29 2005, 03:28 PM

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QUOTE(Mr_47 @ Dec 29 2005, 03:16 PM)
fsb vs ram timming =  high fsb win!
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QUOTE(babyelf @ Dec 29 2005, 03:20 PM)
you sure about that?
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Maybe he's reffering to a 255@2-2-2 vs to 300@ 2.5-3-3 battle....

but in real world its kinda hard comparing those two....

IMHO i think the best is how u maximise ur CPU...and not depending just on RAM...well when u overclock the first thing is CPU right...no need a PC4800 assuming if ur CPU can just do 50mhz more than stock....and what for a 250@2-2-2 if u can do more than 100mhz stable.



antonio
post Dec 29 2005, 03:37 PM

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QUOTE(babyelf @ Dec 29 2005, 03:31 PM)
iirc 255-260 2-2-2-5 > 300 2.5-3-3-7
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what iirc??? whistling.gif

antonio
post Dec 29 2005, 03:53 PM

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QUOTE(empire23 @ Dec 29 2005, 03:41 PM)
Really depends on the cache hit and miss rate, plus the cost of backing up the pipeline and the cost of a stall even with OOO execution. Generally benching with SPEC2000 should get you the data you need to see which is more important.

But on another point it also really depends on the program being run too but me thinks SPEC2000 should give you a rough conjecture of what's best.
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Does it implement on benching of two diffrent processors or just 1 regarding the "cache hit and miss rate, plus the cost of backing up the pipeline and the cost of a stall even with OOO execution"? laugh.gif

antonio
post Dec 29 2005, 03:59 PM

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QUOTE(babyelf @ Dec 29 2005, 03:51 PM)
a quick link for the comparison.. even on a divider tight timings is better

http://www.dfi-street.com/forum/showthread.php?t=27875
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but baby....

the test were made simply with 2.5-4-4 not 2.5-3-3....so in other words...not the exact score u will get with 255-260 2-2-2-5 (BH)/300 2.5-3-3-7 (TCCD)settings....


antonio
post Dec 29 2005, 04:58 PM

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QUOTE(babyelf @ Dec 29 2005, 04:07 PM)
much better...but a few compromises in benchmark/HTT.... thumbup.gif

antonio
post Dec 30 2005, 07:46 PM

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ok...lets make it like this then...

typical BH's can go up to 260Mhz retaining is super tight timings which is 2-2-2-x

and a typical TCCX can go up to 315Mhz with 2.5-4-4-8....

assume the clockspeed is diffrent between those two but is is the same processor...the battle should be won by the TCCD in most benchies except maybe math test by SPI and Sandra....which gives us a result in making a judgement..High FSB wins....

but when the test really needs no diffrence between clockspeed(i.e lowered the multiplier if run on TCCD)....then only IMHO the tight timings can show a diffrent in results....
antonio
post Jan 4 2006, 02:27 PM

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QUOTE(antonio_zth @ Dec 30 2005, 07:46 PM)
ok...lets make it like this then...

typical BH's can go up to 260Mhz retaining is super tight timings which is 2-2-2-x

and a typical TCCX can go up to 315Mhz with 2.5-4-4-8....

assume the clockspeed is diffrent between those two but is is the same processor...the battle should be won by the TCCD in most benchies except maybe math test by SPI and Sandra....which gives us a result in making a judgement..High FSB wins....

but when the test really needs no diffrence between clockspeed(i.e lowered the multiplier if run on TCCD)....then only IMHO the tight timings can show a diffrent in results....
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did anybody ever read this!... tongue.gif

QUOTE(goldfries @ Jan 1 2006, 04:14 AM)
aihh........ since we're getting nonsense like those from Mr_47

why not everyone just go to..........
http://www.madshrimps.be/?action=getarticl...313&articID=325

have fun reading. draw your own conclusion.
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thats in term of gaming POV....well we might be in to gaming...but not with our overclocked rig...Overclocked speed is specially for:

-CPU-z
-Sandra Mem Bandwidth Test, CPU arithmatic...
-Super PI
-Aquamark

thumbup.gif
antonio
post Jan 4 2006, 04:00 PM

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QUOTE(e-jump @ Jan 4 2006, 02:38 PM)
but the deviders available for decent boards are 200,166,133,100

lets have a fix speed of 9x300
can someone with tccd do some bench 1:1 ddr600 n do 200:166 ddr500 n post here?
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i got tccd but mobo wont allow dividers on high HTT....so cant really tell.... laugh.gif

but surely lost of marks is visible IMHO...because i tried once by just changing the tref to 100mhz 15.xxns oso drop kaw-kaw even with the same HTT (300)

This post has been edited by antonio_zth: Jan 4 2006, 04:02 PM
antonio
post Jan 4 2006, 04:13 PM

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QUOTE(goldfries @ Jan 4 2006, 04:04 PM)
LOL. my OCed speed is for gaming. the rest is just for comparison / measurement. smile.gif
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then if for gaming its useless to see the results from the high CPU Overclock...its better the GPU overclock,the raptors and 2 sticks of 1GB memory tied up at 2-2-2-5 timings....
antonio
post Jan 13 2006, 08:09 PM

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QUOTE(KilJim @ Jan 13 2006, 06:05 PM)
check your timings under the Memory tab
that SPD tab shows the default timings only

200mhz = DDR400 = PC3200

and yeah, tight timings + high clockspeed = the best?!  shocking.gif
ZOMG now we know!  doh.gif
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300HTT 1.5-2-2-5 > 400HTT 3-5-4-10

300FSB 2-2-2-5 (tak semestinya) > 400 3-4-4-8

correct me if i'm wrong.... notworthy.gif

 

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