Caporegime
You'd be better off adding some speed, go 6600/6400/6200C26.
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AMD Ryzen 7 9800X3D
- Thread starter Hostile_18
- Start date
There are people running 6600mhz 1:1 (3300UCLK/MCLK) but you need a very good sample.
Gotcha.
Think I have pretty good ram by the looks of it, so all depends on the IMC. Will shoot for 6400/6600.
Associate
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- 24 Nov 2018
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I think there will be many options to do something like that. Because the base clocks are so high at 4.7GHz I think some people will just disable boost entirely. You could also set up different power plans some with boost enabled others not and use a power profile manager to assign them to certain games or apps. The performance would have course be slightly lower but hardly noticeable for the majority of games. I will certainly create a very low power profile for when I am low on stored battery power.
Associate
Sadly, many x870 motherboards are utter crap.
"You want all 16 lanes for your GPU? Seriously? Why?
Better not use half your m.2 slots then"
-gigabyte and Asus.
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Associate
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- 24 Nov 2018
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- 20
A lot of people won't need the lanes for the m.2 slots because they have existing gen 3 and 4 NVME's anyway. The extra lanes on the x870E is a waste for most people.
Soldato
I got an X870 ASUS TUF. Can use one PCIE5 with no impact on GPU lanes and one other PCIE4 one with no impact. I only need 2 SSDs so fine for me.
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Technical question -
If you use a Gen 4 x4 NVMe in a Gen 5 x2 slot does it run at Gen 4 x4 speeds or is it limited by the amount of lanes to Gen 4 x2? I know they are backward compatible, but not sure if the lanes are fixed or if the lanes are just representing the available bandwidth on the slot.
If you use a Gen 4 x4 NVMe in a Gen 5 x2 slot does it run at Gen 4 x4 speeds or is it limited by the amount of lanes to Gen 4 x2? I know they are backward compatible, but not sure if the lanes are fixed or if the lanes are just representing the available bandwidth on the slot.
Now that people are getting to grips with the review data and starting to get their hands on them, wonder if anyone can help confirm what I'm thinking.
Going to be putting this in a fractal terra (very small case) and coupling with a higher end GPU (possibly 7900xtx, tbc). So my my main criteria will be to keep heat down.
My thoughts initially were that the slight higher power draw / thermals in some reviews actually makes a case for the 7800X3D for my use case, but on second thoughts the performance per watt is actually still in favour of the 9800X3D. Assuming I can undervolt to help keep temps lower where cooling is limited I'm thinking stick with 9800X3D when I can eventually order one.
Also any thermal focused reviews anyone's spotted that I can have a look over in case I've missed them?
Going to be putting this in a fractal terra (very small case) and coupling with a higher end GPU (possibly 7900xtx, tbc). So my my main criteria will be to keep heat down.
My thoughts initially were that the slight higher power draw / thermals in some reviews actually makes a case for the 7800X3D for my use case, but on second thoughts the performance per watt is actually still in favour of the 9800X3D. Assuming I can undervolt to help keep temps lower where cooling is limited I'm thinking stick with 9800X3D when I can eventually order one.
Also any thermal focused reviews anyone's spotted that I can have a look over in case I've missed them?
Associate
Gamers Nexus had the Performance per watt (at stock) of the 9800x3d lower than the 7800x3d in all their tests, it seems the 7800x3d just uses less power (possibly throttling?). Now they missed out thermal comparisons because sensor placements moved and the change in the 3D cache layout, so they said they couldn't get a proper comparison done in the time given for reviews, but it'll be interesting to see if the 9800x3d actually keeps cooler under more load due to the changes?
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Associate
I chose the MSI Carbon X870E and I got some TeamGroup 8000 CL38.
Mainly because: some reviewers said that board worked at 8000, and at least one found that MSFS benefited from 8000 on the 9700X, so I thought I would at least try it out. My suspicion is that it won't make much difference on X3D. So I wouldn't really recommend it, I just wanted to play with stuff.
Is the MSI 870E Carbon as good as the reviews say?
On my shortlist for new build and first AMD build.
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Associate
So, apologies if this sounds dumb, but a BIOS update shouldn't be required before installing this CPU, right? I have a BIOS update ready for my new MSI X870 Tomahawk Wi-Fi ready to go, and I could use BIOS Flashback, but I was planning on going the traditional route of booting into the flash tool via the UEFI.
Associate
Physically it's a beauty. Looks nice. Weighs a ton. All the convenience features like no-tool NVME installation are nice. All the rest you can find out online: I got mine partly because I wanted a PCIe x4 slot. I don't have an AM5 CPU to put in it yet, though. I mainly bought it in anticipation of shortages, so as for performance: don't know.
Yeah you're right I was remembering the wrong way round with the performance per watt. That's what made me initially think 7800, but then I thought some of the other positives bring the 9800 back in favour. The relocation of the cache to the bottom helping get the heat out I thought could work in my favour
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I agree pcie5 is required if upgrading mobo today or tomorrow. Are you moving up from 5800 AM4 ?
The choice has to be the 9800X3D because it significantly improves thermal density issues that were present before for V$ CPUs, and thus it's easier to cool even when using more power. On top of it the efficiency of the 9800X3D is also the best.
see->
AMD Ryzen 9000X(3D) vs. 7000X(3D) bei 4,8 GHz im Vergleich
Warum ist der AMD Ryzen 7 9800X3D in Spielen im Vergleich zum 7800X3D schneller als gedacht? Benchmarks bei gleichem Takt geben Antwort.
www.computerbase.de
Soldato
The choice has to be the 9800X3D because it significantly improves thermal density issues that were present before for V$ CPUs, and thus it's easier to cool even when using more power. On top of it the efficiency of the 9800X3D is also the best.
see->
AMD Ryzen 9000X(3D) vs. 7000X(3D) bei 4,8 GHz im Vergleich
Warum ist der AMD Ryzen 7 9800X3D in Spielen im Vergleich zum 7800X3D schneller als gedacht? Benchmarks bei gleichem Takt geben Antwort.
The temperature of the chip due to the new manufacturing is not the important part.
A 9800x3d turns more watts of electricity into heat than a 7800x3d so in a small computer case where the question is heat build up, the 9800x3d is producing more heat.
Can it be gimped to a lower wattage and still be a better performer? Maybe.