Single/Dual/Triple Channel Memory?
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Regular user
13 posts
Posted: 26/10/2009 7:10 PM
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G'day all,
I've been looking into RAM recently, and I've come across something that I'm not entirely familiar with yet - so I thought I'd ask the folks over at APC if they could help me out first!
I'd really like to know the definition of;
+ Single Channel Memory
+ Dual Channel Memory
AND
+ Triple Channel Memory
And I would like to know the difference between the three.
Any help would be appreciated, thank you in advance.
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Regular user
13 posts
Posted: 01/11/2009 5:11 PM
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G'day all,
I've been looking into RAM recently, and I've come across something that I'm not entirely familiar with yet - so I thought I'd ask the folks over at APC if they could help me out first!
I'd really like to know the definition of;
+ Single Channel Memory
+ Dual Channel Memory
AND
+ Triple Channel Memory
And I would like to know the difference between the three.
Any help would be appreciated, thank you in advance.
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New user
6 posts
Posted: 02/11/2009 10:11 AM
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The ram configuration will depend on what motherboard you have .
The earlier motherboards typically ran with a single channel memory bandwidth , when the Pentium 4 with Hyper Threading was released motherboard with 4 memory slots became available with dual channel .
Having dual channel made two physical memory units combined into a single logical unit thus a DDR 400 memory was able to combine with another to match the 800FSB of the Pentium 4 cpu .
The very latest motherboards for the i7 have 6 memory slots and the i7 cpu is able to handle 3 channels on memory . Having the ram combined creates better bandwidth .
If you have a single memory slot used you can use memtest to see that its running in 64bit mode , adding another matched memory unit will increase that to 128bits .
With the increase in Front Side Bus for the cpu and better onboard memory controls the cpu is able to take advantage of the full bandwidth the memory is able to offer when running in these configurations .
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Regular user
13 posts
Posted: 02/11/2009 10:11 AM
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Thank you, Cuda. I now understand that by combining matching memory units you can allow your CPU to take better advantage of the RAM at hand.
What I have previously heard mentioned, and do not know about, is Front Side Bus for a CPU. Would you mind explaining what this is please?
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in the middle of a fanboi war
Frequent poster
30 posts
Posted: 02/11/2009 1:11 PM
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KarmaAmputee wrote:
Thank you, Cuda. I now understand that by combining matching memory units you can allow your CPU to take better advantage of the RAM at hand.
What I have previously heard mentioned, and do not know about, is Front Side Bus for a CPU. Would you mind explaining what this is please?
The Front Side Bus(FSB) is the motherboards means of controlling the clock cycles of the RAM and the CPU. The FSB is used on Intel Pentium, Celeron, Core Duo, and Core Quad compatible motherboards.
Core i5 and i7 use Quick Path Interconnect, which is in short a newer technology Intel uses, that allows for greater bandwidth control, since the later mdels of intel processors were reaching the FSB peak.
AMD chips and boards do not control the RAM and CPU clock cycles through the one channel- they are managed seperately, which only shows performance gains when overclocking- because your processor speed is not limited by the RAM speed on dual channel RAM. Triple channel has a higher peak capacity.
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should R rated games be legal
Frequent poster
37 posts
Posted: 03/11/2009 8:11 AM
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i need help with wht ram to get im building a pc powered by a core i5
it needs to be under $200 ddr3 tripple channlle 4gb
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New user
6 posts
Posted: 03/11/2009 10:11 AM
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The simplest explanation is the speed at which each component can talk to each other as previously mentioned . Between the CPU memory and the northbridge chip of the motherboard that controls the flow of the data between the 2 .
With the Pentium 4 the increase in FSB was from 400FSB to 533FSB and 800FSB for HT models , the prescott line was 533 and 800 only . Newer cpu's have increased the FSB a lot further .
Differences in the way the cpu work with memory between AMD and Intel mean that each platform handled the memory differently .
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New user
6 posts
Posted: 03/11/2009 10:11 AM
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Just Man , you need to check what specs your motherboard can handle . I don't think i5 runs in triple channel , I think triple channel is for i7 cpu's .
Remember there is a difference between DDR3 memory and triple channel . You would most likely be best suited to a DDR3 dual channel kit 2 x 2gb .
DDR3 is directly related to the memory module speed while triple channel has to do with the bandwidth configuration that the cpu/motherboard can handle .
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should R rated games be legal
Frequent poster
37 posts
Posted: 03/11/2009 4:11 PM
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thanks man and the motherboard is a gigabyte p55-ud5
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New user
6 posts
Posted: 04/11/2009 11:11 PM
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Just Man , the motherboard has 4 memory slots so a triple channel kit is no use to you .
Either get a Dual channel 2x2gb kit or if you want all 4 slots filled by two of those sets for a total of 8gb but only if your running a 64bit Operating system and need that sort of overhead in memory for your programs :) .
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