If a CPU has a higher FSB is it better?

StratosP · 10-15-2008, 01:12 AM

Should I get a CPU with 1333mhz for the FSB or one with 1600mhz?

Does the FSB have anything to do with the speed (mhz) of the RAM?

worshipme · 10-15-2008, 07:47 AM

1333MHz quad pumped = 333MHz FSB = DDR 667
1600MHz quad pumped = 400MHz FSB = DDR 800

You can overclock it yourself, just go with whatever's cheaper. The pick of the bunch at the moment is the Q9550 I think.

StratosP · 10-15-2008, 03:41 PM

When the Nehalem comes out will the CPU's have higher FSB's?
And what is AMD's relation with FSB and the Cache..I heard they don't require a high FSB or cache or something..why is that?

newbie1323 · 10-20-2008, 03:33 PM

So does that mean that all ram over ddr800 is pointless and a waste of money cos you cant get a higher fsb of 1600 can u, unless u bring a duel core to 1600, therefor the fsb would be 800, does it work like that?

JogaBonito1502 · 10-20-2008, 03:45 PM

All core 2 processors are quad-pumped. They access the memory controller 4 times per cycle. The listed FSB is the total frequency in which they access the cycle. IMO they only do this for marketing purposes. You find the actual speed of the CPU by multiplying the frequency of one access time by the multiplier. The RAM is also a marketing scheme. They double the access speed because it's DDR (Double Data Rate, meaning, in simple term, a two-way street). Systems run most stable at 1:1 FSB to RAM ratios, however it's not necessary to have this ratio. AMD's are different. They don't have the FSB limit, but they still have a limit. I believe it's much higher, I'm not quite sure of the figure. I want to say 1200MHz.

StratosP · 10-20-2008, 03:48 PM

So AMD has no FSB limit, but a limit to how much speed the RAM is because of _______?

JogaBonito1502 · 10-20-2008, 05:29 PM

Hyper Transport. But again I'm not sure how much that is or how it works.

StratosP · 10-21-2008, 12:59 AM

How can I find out the speed/frequency or whatever of an AMD CPU? Anyone?

worshipme · 10-21-2008, 12:20 PM

Quote:

How can I find out the speed/frequency or whatever of an AMD CPU? Anyone?

You mean HT speed? It should be listed.

Athlon 64 X2 - 2000MT/s
Phenom X3 8450-8750/X4 9550-9750 - 3600MT/s
Phenom X4 9850/9950 - 4000MT/s

StratosP · 10-21-2008, 03:37 PM

Quote:

Originally Posted by worshipme

You mean HT speed? It should be listed.

Athlon 64 X2 - 2000MT/s
Phenom X3 8450-8750/X4 9550-9750 - 3600MT/s
Phenom X4 9850/9950 - 4000MT/s

And I just divide the HT speed by 2 and that's the amount of speed my RAM can be?

10-15-2008, 01:12 AM	#1
StratosP Fully Optimized Join Date: Aug 2008 Posts: 1,752	If a CPU has a higher FSB is it better? Should I get a CPU with 1333mhz for the FSB or one with 1600mhz? Does the FSB have anything to do with the speed (mhz) of the RAM?

10-15-2008, 07:47 AM	#2
worshipme Golden Master Join Date: Oct 2007 Posts: 5,606	Re: If a CPU has a higher FSB is it better? 1333MHz quad pumped = 333MHz FSB = DDR 667 1600MHz quad pumped = 400MHz FSB = DDR 800 You can overclock it yourself, just go with whatever's cheaper. The pick of the bunch at the moment is the Q9550 I think. __________________ AMD Phenom II X4 955 BE @ 4.0GHz + TU120E lapped - MSI 770-CD45 AM3 - 2x2GB OCZ DDR3 1333MHz - Sapphire HD 4870 - Samsung Spinpoint 500GB 7200RPM 16MB cache HDD - Tagan TG600-BZ Piperock - (Currently open test bed) - Windows Vista Home Premium 64bit.

10-15-2008, 03:41 PM	#3
StratosP Fully Optimized Join Date: Aug 2008 Posts: 1,752	Re: If a CPU has a higher FSB is it better? When the Nehalem comes out will the CPU's have higher FSB's? And what is AMD's relation with FSB and the Cache..I heard they don't require a high FSB or cache or something..why is that?

10-20-2008, 03:33 PM	#4
newbie1323 Baseband Member Join Date: Sep 2008 Posts: 98	Re: If a CPU has a higher FSB is it better? So does that mean that all ram over ddr800 is pointless and a waste of money cos you cant get a higher fsb of 1600 can u, unless u bring a duel core to 1600, therefor the fsb would be 800, does it work like that?

10-20-2008, 03:45 PM	#5
JogaBonito1502 Guru Join Date: Jan 2008 Location: U.S. Posts: 7,824	Re: If a CPU has a higher FSB is it better? All core 2 processors are quad-pumped. They access the memory controller 4 times per cycle. The listed FSB is the total frequency in which they access the cycle. IMO they only do this for marketing purposes. You find the actual speed of the CPU by multiplying the frequency of one access time by the multiplier. The RAM is also a marketing scheme. They double the access speed because it's DDR (Double Data Rate, meaning, in simple term, a two-way street). Systems run most stable at 1:1 FSB to RAM ratios, however it's not necessary to have this ratio. AMD's are different. They don't have the FSB limit, but they still have a limit. I believe it's much higher, I'm not quite sure of the figure. I want to say 1200MHz.

10-20-2008, 03:48 PM	#6
StratosP Fully Optimized Join Date: Aug 2008 Posts: 1,752	Re: If a CPU has a higher FSB is it better? So AMD has no FSB limit, but a limit to how much speed the RAM is because of _______?

10-20-2008, 05:29 PM	#7
JogaBonito1502 Guru Join Date: Jan 2008 Location: U.S. Posts: 7,824	Re: If a CPU has a higher FSB is it better? Hyper Transport. But again I'm not sure how much that is or how it works.

10-21-2008, 12:59 AM	#8
StratosP Fully Optimized Join Date: Aug 2008 Posts: 1,752	Re: If a CPU has a higher FSB is it better? How can I find out the speed/frequency or whatever of an AMD CPU? Anyone?

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