AMD Zen 5 rumours

[Vakas]

Is it still the case with 8 series boards where 2 memory sticks perform better than 4?

Aesthetically 4 sticks do look better than 2 but I suppose it comes down to performance

 

[Grim5]

Is it still the case with 8 series boards where 2 memory sticks perform better than 4?

Aesthetically 4 sticks do look better than 2 but I suppose it comes down to performance

I like having 4 cause it looks cool

However yes you will get best performance if transfer rate or latency is important to you with two it's always the case these days

The good news is some companies sell fake sticks - Corsair makes ram sticks that are fake, they are so you can fill up all the slots for looks. https://www.corsair.com/us/en/explo...QeENh_fyhJgdh24yxPbXSN1xqw88AMd5wD184YcntQ8Vy

 

[Vakas]

I like having 4 cause it looks cool

However yes you will get best performance with two it's always the case these days

The good news is some companies sell fake sticks - Corsair sells ram sticks that are fake, they are so you can fill up all the slots for looks

How much performance difference is it?

Is it noticeable?

I'm looking at some G Skill memory

Also is PC 6000 still the sweet spot

 

[Dave2150]

Is it still the case with 8 series boards where 2 memory sticks perform better than 4?

Aesthetically 4 sticks do look better than 2 but I suppose it comes down to performance

This is a complex issue. For best performance (highest stable RAM speed & tightest timings) you want a board with only 2 physical DIMM slots.

Next best will be a board with 4 physical slots, but using a kit that's only 2 DIMMS.

Absolute worst is a board with 4 physical DIMM slots and having all 4 populated.

As for the performance penalty between the above - it's not something you'd notice outside benchmarks. At 4K especially, you're not going to notice.

At 720P/1080P benchmarks in select games, you can see huge gains though, if you plan to playing at these resolutions.

 

[Rob_B]

And it depends on the ranking of the sticks as well no? I'm assuming this remains constant for Zen 4/5.
I went from 2 to 4 sticks so lose potential speed (max MT/s) but gain speed from now running dual rank which does make a difference according to this, so maybe it evens out-ish?

 

[Vakas]

And it depends on the ranking of the sticks as well no? I'm assuming this remains constant for Zen 4/5.
I went from 2 to 4 sticks so lose potential speed (max MT/s) but gain speed from now running dual rank which does make a difference according to this, so maybe it evens out-ish?

I saw this and from what they say it comes down to ranking, does it say on the memory weather it is single or dual rank?

 

[pandem0nium]

I run four sticks of DDR4. It looks better and there's a performance benefit. Also means that I don't have to worry about specifically seeking out dual rank kits because 4 total ranks is optimal and always achieved with 4 sticks.

I know that it's different with DDR5 though, because it's a lot more difficult to run higher speeds with more than 2 DIMMS. Though I predict that situation improving in the future as things mature.

I saw this and from what they say it comes down to ranking, does it say on the memory weather it is single or dual rank?

It's not usually advertised and it's a bit of a mess tbh. You can find out yourself on an existing kit with Typhoon Burner.

 

[cliffy]

This is a complex issue. For best performance (highest stable RAM speed & tightest timings) you want a board with only 2 physical DIMM slots.

Next best will be a board with 4 physical slots, but using a kit that's only 2 DIMMS.

Absolute worst is a board with 4 physical DIMM slots and having all 4 populated.

As for the performance penalty between the above - it's not something you'd notice outside benchmarks. At 4K especially, you're not going to notice.

At 720P/1080P benchmarks in select games, you can see huge gains though, if you plan to playing at these resolutions.

I got6 4 DIMMS running at 6400 CL32

 

[Vakas]

I run four sticks of DDR4. It looks better and there's a performance benefit. Also means that I don't have to worry about specifically seeking out dual rank kits because 4 total ranks is optimal and always achieved with 4 sticks.

I know that it's different with DDR5 though, because it's a lot more difficult to run higher speeds with more than 2 DIMMS. Though I predict that situation improving in the future as things mature.




It's not usually advertised and it's a bit of a mess tbh. You can find out yourself on an existing kit with Typhoon Burner.

They don't make it easy do they,

I'm deciding between 6000 and 7200 speeds is it worth it and are the issues still there

 

[Tinek]

And it depends on the ranking of the sticks as well no? I'm assuming this remains constant for Zen 4/5.
I went from 2 to 4 sticks so lose potential speed (max MT/s) but gain speed from now running dual rank which does make a difference according to this, so maybe it evens out-ish?

As far as I'm aware and internet seems to be confirming, DDR5 performance isn't affected as much by ranking anymore. Even single channel DDR5 is already not too bad, unlike it was with DDR 4. However, all DDR5 16GB and lower seem to be single rank and 32GB and higher are dual rank. Also, interesting thing about running 4 modules is that it's considerably slower than running 2 modules, even if they run full speed in both cases - 4 modules (2DPC) seem to be introducing additional latency not present with just 2 modules. At least benchmarks by Anandtech and other seem to be confirming that.

 

[g67575]

Yep, confirmed on the AMD press video just released

Seems like the 9800X3D would be a decent upgrade from a Ryzen 7700 or 7700X. Similar clock frequency and processing capability, but with lots more cache.

Will be interesting to see if the CPU can handle 5.2Ghz with a decent air cooler.

 

[g67575]

Personally, I'm going to wait for Zen 6 CPUs, before considering an upgrade.

I've told my dad (who eventually wants to build a new PC) that he should wait for Intel's vcache CPUs, or Zen 6 (probably at the end of 2025).

 

[GordyR]

I like having 4 cause it looks cool

However yes you will get best performance if transfer rate or latency is important to you with two it's always the case these days

The good news is some companies sell fake sticks - Corsair makes ram sticks that are fake, they are so you can fill up all the slots for looks. https://www.corsair.com/us/en/explo...QeENh_fyhJgdh24yxPbXSN1xqw88AMd5wD184YcntQ8Vy

I just got two of the dummy Corsair sticks myself to go alongside 2x 48gb Dominator platinums. I absolutely love the look of having all slots filled.

 

[Nitefly]

@GordyR and the look of your components being upside down?

Looks like Be Quiet case ah it is. I was playing around with my new one today.

 

[GordyR]

@GordyR and the look of your components being upside down?

Looks like Be Quiet case ah it is. I was playing around with my new one today.

Yeah the way my desk is situated it really needs to be on the left. I was sick of having my computer on the floor so decided to go for the invertible darkbase pro 901 for this build so that I can actually see the thing.

Having everything upside down is odd for sure but I’m very pleased with the result.

 

[Nitefly]

Yeah the way my desk is situated it really needs to be on the left. I was sick of having my computer on the floor so decided to go for the invertible darkbase pro 901 for this build so that I can actually see the thing.

Having everything upside down is odd for sure but I’m very pleased with the result.

Great case isn’t it… makes my Lian Li Dynamic-XL feel ‘cheap’ by comparison. Looking forward to my upcoming build!

 

[FredFlint]

Don't AIO's work badly if the tubes are lower than the pump?

 

[GordyR]

Don't AIO's work badly if the tubes are lower than the pump?

No, the aim is to ensure that any potential air bubbles are kept out of the pump itself, which is where damage might be caused over time.

As long as the pump is below the radiator air bubble settling point you’re fine.

 

[GordyR]

Great case isn’t it… makes my Lian Li Dynamic-XL feel ‘cheap’ by comparison. Looking forward to my upcoming build!

Honestly, I think it’s the best case I’ve owned. Particularly in terms of the options available to you. You’ve got to give it to the Germans, the built quality is sublime.

 

[AMDPower]

Don't AIO's work badly if the tubes are lower than the pump?