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AMD Ryzen 7 9800X3D

I'm thinking of building a new PC start of the new year, I've had my current setup for about 4 and a half years but not sure if I should wait for 9800X3D's to be easier to get or just upgrade my Ryzen 5 3600 to a 5700X3D. I know benchmarks at 1440p show not much difference but I'm thinking for future use, especially with the new Nvidia cards my thinking is a new AM5 platform might be a worthwhile investment to just ensure I don't need to touch things again for a while
 
cmon December, if oc get them in time.
i see some of these at real high temps, sure i read, these ran a lot cooler than earlier x3d chips?
this in basket ready to order mag x870 tomahawk, but w8 to see if any cheaper over black friday.
 
Rambo89 said:
I'm thinking of building a new PC start of the new year, I've had my current setup for about 4 and a half years but not sure if I should wait for 9800X3D's to be easier to get or just upgrade my Ryzen 5 3600 to a 5700X3D. I know benchmarks at 1440p show not much difference but I'm thinking for future use, especially with the new Nvidia cards my thinking is a new AM5 platform might be a worthwhile investment to just ensure I don't need to touch things again for a while
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3600 to 5700X3D is a decent upgrade but if you’re really building a new pc, then I’d go AM5 and 9800X3D. Especially if you’re considering the upcoming graphics cards.

With 5700/5800X3D > 7800X3D there were still decent arguments for staying on AM4.

The uplift from 5700X3D or even 5800X3D to 9800X3D is quite significant and doesn’t really make much sense to stay on AM4 if you’re truly doing a new build.
 
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Mine just arrived, weee!

.. now to wait on the board.

vgrf7ouh8gac1.jpg
 
pwr22 said:
Woop woop!. If you don't mind me asking, when was your order time?
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I didn’t order from here. I wasn’t sure of the waiting time when pre-ordering with OC’s, so my very impatient self then tried to get it straight away somewhere else..big mistake lol. If I’d preordered with OC’s (around 2:01), I’d have it already. Lesson learned.

I ordered it with another retailer on the 7th. Was supposed to be delivered on the 15th, but was delayed due to customs. They’re finally getting their shipment today.
 
Now it’s just fingers crossed I get a decent chip. Looking to push my ram as far as possible, and overclock the chip itself of course.
 
Rambo89 said:
I'm thinking of building a new PC start of the new year, I've had my current setup for about 4 and a half years but not sure if I should wait for 9800X3D's to be easier to get or just upgrade my Ryzen 5 3600 to a 5700X3D. I know benchmarks at 1440p show not much difference but I'm thinking for future use, especially with the new Nvidia cards my thinking is a new AM5 platform might be a worthwhile investment to just ensure I don't need to touch things again for a while
Click to expand...
I would've said get the 5700X3D it's a great upgrade for little money and hassle but you'll probably want pcie 4.0 for 5000 series GPUs.
 
If you’re going anything more than perhaps a 4070Super, it really doesn’t make much sense to stay on AM4.

Don’t get me wrong, at high resolutions, the bottleneck will be fairly minimal. Even so, there is a measurable ‘holding back’ with something like a 5800X3D and a 4080/4090. I personally think the next gen GPU’s like 5080/5090 will be quite substantially bottlenecked/held back by AM4.
 
Nitefly said:
Hmm yes mine is very toasty indeed, gets into 90 degrees within a few seconds (?!) of a CPU-Z benchmark... then back down to 60ish at idle.

This is with a -40 offset... what the heck. I assume I've just totally failed with mounting the heatsink... but any other ideas?

nhIXeZA.png
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Having re-seated the CPU... now at 44-45 at idle... and going to 53 degrees during the same bench.

Clearly I had a howler on my first attempt :o

Pleased that it seems to be working as it should :)
 
It’s probably my final day of using the 7800X3D. For fun (and because I love pushing ram), I’ve pushed my 7800X3D’s IMC to the limit. I’ve managed to get my Trident Z5’s (6000CL30) to boot and stable at 6000CL24 with 1.8v.

Will be very interesting to see if I can push the 9800X3D to the same extent. But of course depends on individual IMC and silicon lottery.

Despite achieving CL24 on my 7800X3D, it just doesn’t like 6400mhz at all, and I’m really hoping that changes with the new chip. I’m going to shoot for 6400CL28. Although will be interesting to see what’s superior between 6000CL24 and 6400CL28 in benches/games.
 
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Nitefly said:
Hmm yes mine is very toasty indeed, gets into 90 degrees within a few seconds (?!) of a CPU-Z benchmark... then back down to 60ish at idle.

This is with a -40 offset... what the heck. I assume I've just totally failed with mounting the heatsink... but any other ideas?

nhIXeZA.png
Click to expand...

I have same issue running a Noctua NH-D14, within 1m of prime95 my temps go to 95C and started to smell burning before quickly closing it. Didn't see anything melting in case, not sure what to do. I used the cake method maybe doing it a bit too thin and mx4 using the included paddle spreader, guess I'll try the dot in center method. Maybe order the $5 offset bracket, not sure if the 7mm offset bracket will even do anything for these chips with the ccid moved... anyone know?
This is on an Asrock x870 steel legend board with latest bios using mostly stock settings, no PBO, only adjusted ram to basically same timings and speed as yours.

Err you did a new post stating you fixed yours as I was typing... which thermal paste application method did you use? This weird die shape makes me try stupid things.
 
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psk94 said:
I have same issue running a Noctua NH-D14, within 1m of prime95 my temps go to 95C and started to smell burning before quickly closing it. Didn't see anything melting in case, not sure what to do. I used the cake method maybe doing it a bit too thin and mx4 using the included paddle spreader, guess I'll try the dot in center method. Maybe order the $5 offset bracket, not sure if the 7mm offset bracket will even do anything for these chips with the ccid moved... anyone know?
This is on an Asrock x870 steel legend board with latest bios using mostly stock settings, no PBO, only adjusted ram to basically same timings and speed as yours.
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Thermal application won’t make that much difference. Even if it was nearing non-existent and awfully applied.

I have seen quite a few reports online such as Nitefly’s with some people having very high temps after installing. And like his did, massively improved after reseating.
 
psk94 said:
I have same issue running a Noctua NH-D14, within 1m of prime95 my temps go to 95C and started to smell burning before quickly closing it. Didn't see anything melting in case, not sure what to do. I used the cake method maybe doing it a bit too thin and mx4 using the included paddle spreader, guess I'll try the dot in center method. Maybe order the $5 offset bracket, not sure if the 7mm offset bracket will even do anything for these chips with the ccid moved... anyone know?
This is on an Asrock x870 steel legend board with latest bios using mostly stock settings, no PBO, only adjusted ram to basically same timings and speed as yours.
Click to expand...

If you see my post above on the same page, I think I solved it. Running OK temps now.

Are you by any chance using a 'thermal paste guard'? I expect what might have happened to me is that this came loose and covered the CPU as I installed it. When I took the DH15 off, the AM5 guard was at an angle.

Might be worth a check! Or this had nothing to do with it... and it was the re-seat that sorted it.
 
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Currently I'm messing around with undervolting and the results are fantastic. I set PBO to motherboard limits, scalar 10x and -25 curve optimizer. Under more normal tests, like Cinebench, it sits there at the max 5.2Ghz on all cores, 63c, 1.147v with a package power of 99W. If I blast it with an OCCT extreme stress test, the temps reach 83c, 1.1v, 144W package, 5.05GHz all cores.

There's clearly a lot of headroom here, currently I'm just trying to dial in a reasonable baseline. Then I'll look into increasing the frequency multiplier and/or pushing the curve optimizer further.

This testing is done on a MSI X870 Tomahawk Wifi, with an Arctic Liquid Freezer II 360, in a Lian Li O11-XL. Ambient temp of 20c. Generally I'd say the thermals in my case are average or slightly below average, I lean more towards lower noise levels.
 
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benjii said:
This testing is done on a MSI X870 Tomahawk Wifi, with an Arctic Liquid Freezer II 360, in a Lian Li O11-XL. Ambient temp of 20c. Generally I'd say the thermals in my case are average or slightly below average, I lean more towards lower noise levels.
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Will be interesting to see how it does in my custom loop with 840mm * 140mm total radiator capacity. The 5800X3D ran hotter than I expected (though still fine) but I think that was due to the thermal characteristics of having the cores below the memory die and structural silicon.
 
In other news, here's how my temps. are faring with a -40 curve optimiser (all core) with a +200 PBO limit. With this it seems to idle around *looks* 50 degrees.

Result is for Timespy 4k. Temps did go up to 80 degrees with the all core stress test.

eKH9JLh.png


GPU is running at an undervolt, for what it's worth.

... not too bad, I think! If anyone wants to share and compare, please do so :p
 
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