AMD Ryzen 9 3900X Tested on Cheap B350 Motherboard

[W1zzard]

We're testing AMD's 12-core, 24-thread Ryzen 9 3900X flagship on a cheap B350 motherboard. Performance results are good, even overclocking works as well as on X570. Special attention is paid to VRM temperatures, which we measure using a FLIR thermal camera.

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[ZoneDymo]

this is good to know, good stuff

 

[GoldenX]

Good to see that the only problem is the VRM temp.
Thanks!

 

[Midland Dog]

next article, tpus test location burns down due to a poor vrm getting absolutely raped by a 12 core, overclocking on that board was a bold move, i would trust putting my knob in a blender over using that setup 24/7

 

[W1zzard]

next article, tpus test location burns down due to a poor vrm getting absolutely raped by a 12 core, overclocking on that board was a bold move, i would trust putting my knob in a blender over using that setup 24/7

all for science

 

[btarunr]

next article, tpus test location burns down due to a poor vrm getting absolutely raped by a 12 core, overclocking on that board was a bold move, i would trust putting my knob in a blender over using that setup 24/7

Oh just you wait until we get a 3950X sample.

 

[Tsukiyomi91]

sounds like a golden B350 board. I'm impressed that the VRM managed to handle the beastly R9 3900X without making the magic smoke or sparkles.

 

[Xuper]

I put fan at low rpm above VRM when i do OC.

 

[Zareek]

Excellent analysis as always, I'm surprised the system was smart enough to throttle and keep the VRMs from burning up. How far we have come since the old days when even CPUs would cook themselves.

 

[XL-R8R]

I put fan at low rpm above VRM when i do OC.

@W1zzard can we get an additional test with a fan mounted someplace for cooling?

 

[z1n0x]

I wonder how many people will click on this article, thinking they will read something disastrous about Ryzen, but left disappointed?

 

[kings]

Actually, not too bad, the board held up very well! Using the CPU at stock, it can be a durable system.

 

[xorbe]

ASUS Prime B350 Plus is as cheap as it gets.

TPU throwing shade at my motherboard! Wait, mine's B350M-A not Plus. Same price though ... I've got a 2700X wedged in there currently.

 

[Midland Dog]

Oh just you wait until we get a 3950X sample.

rip vrm, rip hard

 

[Nkd]

Why don’t you guys use a better cooler? It’s a 12 core chip with dense area. Why limit it with a 240mm. I have a 360mm thermaltake rgb 360. I have it over locked to 4450 all core with temps in the 70s at 1.328v under load set at 1.375 in ryzen master. Passed 6 hours stress test with Aida 64. After which I stopped it.

 

[Vya Domus]

You can still use watercooling, just place a fan over the VRMs, it'll better than anything else.

 

[Midland Dog]

all for science

i hope u dont need a large quantity of samples (victims) for accurate results

 

[Joss]

Interesting test, thanks.

 

[catulitechup]

Very good article

however can add R5 3600X / R7 3700X

thanks

 

[Midland Dog]

Very good article

however can add R5 3600X / R7 3700X

thanks

no point, they will probs use less power than the parts they replace

 

[Wavetrex]

Fantastic !

I have an Asus Prime X370 which is somewhere middle of the pack for that generation, right now with an R7-1700 on it, I think I'll save some cash and put a 3700X or 3800X on it, jerry-rig a fan to blow air on the VRMs and be done with it.
Initially wanted to go all-in with 3900X and X570, but tbh it feels kinda overkill and not worth paying double (CPU+new mobo) to get very similar results on what I do.

I do encode 4K videos, but it's not THAT often, and I have two other recent computers in the house if the workload becomes too much for a 3700X

｜｜ASUS USA

www.asus.com

AMD Ryzen7 3700X (3.6GHz,65W,L3:32M,8C,B0)

ALL

4801

Looks like it works.
Great !

p.s.
When the time comes to actually benefit from PCIe-4, it's just a matter of moving the CPU from one mobo to another (and plugging back that "old" 1700 in it's original board). WIN WIN

 

[Vayra86]

all for science

I love the marriage of clickbaity title and even Youtuber lookalike thumbnail for this review, with the actual content. This is some really good stuff, very useful, to the point, and not forcing me to watch your face for 15 minutes

W1zzard's gonna take over the world like this. I feel it. Steve is toast! (just like that VRM under water...)

 

[catulitechup]

no point, they will probs use less power than the parts they replace

For vrm temps because 3600X and 3700X have less cores

 

[Mistral]

A neat and informative test, many thanks!

The graph for the performance results is a bit confusing, especially for people that don't carefully read the explanation paragraph written under it. Might I suggest putting the explanation above, or changing it the chart name from "Ryzen 9 3900X Running on B350 vs X570" to "Water and Air cooled Ryzen 9 3900X on B350 vs X570 baseline", or simply including said 0% baseline in the chart label?

Also, and I'm not sure how much of a difference that'll make, was the X570 air or watercooled?

 

[BoiseTech]

I'm planning on doing a 3950x in a Asus ITX B350 board, however I'm using a top down cooler, I wonder what my VRM temps will be.