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Duan channel or quad

Alex_pap
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Just now, Alex_pap said:

this is bad

It's fine. Just like how no LGA1200 CPU is quad channel.

You have 4 slots to add capacity. 2 DIMM's in a AM4 or LGA1200 board is fine.

 

Filling to 4 DIMM's slightly increases performance, if (and only if) the DIMM's are single rank. (Memory speed has a bigger impact than this.)

 

This means, don't worry about it. As long as you have 2 or 4 DIMM's, you'll see the expected performance from the CPU.

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I Want to buy a 3700x if i buy 4×8Gb ram Does it work as quad channel And will it work as 32gb Or will it only recognize 16 i really dont know somebody help me

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Dual channel.

image.thumb.png.0f672eb504d0da445fa782094466b76f.png

I'm not actually trying to be as grumpy as it seems.

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2 minutes ago, IkeaGnome said:

Dual channel.

image.thumb.png.0f672eb504d0da445fa782094466b76f.png

wich means that other channels dont even work?

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Ryzen CPUs are dual-channel max.  Threadrippers are "quad-channel"  ..

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2 minutes ago, Alex_pap said:

wich means that other channels dont even work?

They'll work, they just don't provide a performance benefit since there's only 2 channels worth of bandwidth. 4x8GB is effectively the same as 2x16GB on 2-channel platforms.

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2 minutes ago, Alex_pap said:

wich means that other channels dont even work?

A memory channel is not the same thing as a memory slot.

 

All four slots will work, and detect the memory. You would have two dimms per channel, and have dual channel.

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Just now, Fasauceome said:

A memory channel is not the same thing as a memory slot.

 

All four slots will work, and detect the memory. You would have two dimms per channel, and have dual channel.

What do you think i should do if i dont have quad channel is it still worth it 

 

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Just now, Alex_pap said:

What do you think i should do if i dont have quad channel is it still worth it 

 

sometimes. it depends on dual rank vs single rank. Im still not sure exactly how ranks work, ill let someone more knowledgeable explain it if need be.

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3 minutes ago, Grabhanem said:

They'll work, they just don't provide a performance benefit since there's only 2 channels worth of bandwidth. 4x8GB is effectively the same as 2x16GB on 2-channel platforms.

What do you think i should do if i dont have quad channel is it still worth it 

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1 minute ago, Alex_pap said:

What do you think i should do if i dont have quad channel is it still worth it 

No AM4 CPU is quad channel.

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1 minute ago, HelpfulTechWizard said:

sometimes. it depends on dual rank vs single rank. Im still not sure exactly how ranks work, ill let someone more knowledgeable explain it if need be.

If there isnt a huge diffrence it doesent matter 

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Just now, svmlegacy said:

No AM4 CPU is quad channel.

this is bad

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Just now, Alex_pap said:

this is bad

It's fine. Just like how no LGA1200 CPU is quad channel.

You have 4 slots to add capacity. 2 DIMM's in a AM4 or LGA1200 board is fine.

 

Filling to 4 DIMM's slightly increases performance, if (and only if) the DIMM's are single rank. (Memory speed has a bigger impact than this.)

 

This means, don't worry about it. As long as you have 2 or 4 DIMM's, you'll see the expected performance from the CPU.

Main: AMD Ryzen 7 5800X3D, Nvidia GTX 1080 Ti, 16 GB 4400 MHz DDR4 Fedora 38 x86_64

Secondary: AMD Ryzen 5 5600G, 16 GB 2667 MHz DDR4, Fedora 38 x86_64

Server: AMD Athlon PRO 3125GE, 32 GB 2667 MHz DDR4 ECC, TrueNAS Core 13.0-U5.1

Home Laptop: Intel Core i5-L16G7, 8 GB 4267 MHz LPDDR4x, Windows 11 Home 22H2 x86_64

Work Laptop: Intel Core i7-10510U, NVIDIA Quadro P520, 8 GB 2667 MHz DDR4, Windows 10 Pro 22H2 x86_64

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15 minutes ago, Alex_pap said:

this is bad

Not really. Dual channel is fine. 

geometry is hard
b550 > x570

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53 minutes ago, Alex_pap said:

What do you think i should do if i dont have quad channel is it still worth it 

If you need 32GB of RAM, get 32GB of RAM - it doesn't matter if it's 2 or 4. If you don't need 32GB of RAM, just get 2x8GB.

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There are benefits to running 4x8 even if you don't need the extra ram. Rank interleaving is beneficial with Zen 2 and 3 in my short and limited experience.

 

Whether that's worth the extra cost is up to you.. 

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