Question I'm concerned about heat and choosing between Ryzen 5700X and 5900X ?

Oct 13, 2024
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I'm upgrading from a Ryzen 1700X on a Asrock B350 board. Built it in 2018 and had absolutely ZERO issues.

Right now and up to Jan 12th I need to make a decision if I should go with the Ryzen 5700X or the 5900X.
I have them both, unopened and ready to upgrade update the BIOS and install one OR the other.

Cooling is a new Thermalright Phantom Spirit 120

RAM: Upgrading from 2 x 8GB 2400 to 2 x 16GB 3200

GPU: Upgrading from RTX 660 to Asus Dual RX 6600

PSU: 525 watts

Case: Conventional mid tower

Everything was bought from Black Friday and I was suppose to put up this post a long time ago to upgrade but delayed...because if i went ahead, i was afraid of any problems that would pop up and i couldn't use the computer.

1***Because of concerns for heat issues and longevity, do i go to the 5700x or go all the way to 5900x?

2***Is the fan going to be a lot noisier?


3***If I go with the 5900x, can I limit voltage or is there software built in to throttle the heat issue?

4***Do I have enough power to run the 5900x?


I'm not a gamer, I just run AutoCad, Chief Architect for fun and surf. I want to cut down on some of the larger design that take up time to process. I just have to January 12 to bring one or the other processor back.

HELP!!! And thank you in advance!

(BTW...I trust opinions from you guys 1000x more the computer part jockeys at BestBuy!)
 
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Ideally, we need to know the exact model number and revison of your B350 motherboard and similarly, the manufacturer and part number for your "525W" PSU.

Personally, I'd opt for the 5900X, but I'd be happier placing it on a motherboard with heatsinks on the VRMs. Still, if you don't overclock it with PBO, a B350's VRMs should cope.

Provided you have a high quality PSU, 525W might be sufficient, but I'd factor in a good 650W or 750W unit if the warranty on your existing PSU has run out.

I run my 7950X up to its 95C limit from time to time in video renders, using an NH-D15 air cooler.

If you're desperate to keep things cool, you could mess around with CPU power limits in the motherboard BIOS, but I wouldn't bother. Modern CPUs are designed to boost up to the thermal ceiling unless you're paranoid.
 
The main difference is that 5700x has 16 processing threads, and the 5900X has 24.
If your app can use all 24 threads, opt for the 5900X.
You might go 5900X regardless.
There are any number of ways to limit heat, IF it is a problem.

What is the make/model of your case?
The cooler is a good one and should be sufficient in a well ventilated case.
Noise comes from small fans running at high rpm.
If you want the absolute best air cooler, look at the new noctua NH-D15G.
It will be very quiet at any load.
Noctua maintains a list of suitable air coolers.
Here is the list for the 5900X:
https://ncc.noctua.at/cpus/model/AMD-Ryzen-9-5900X-1045

What is the make/model of the 525w psu?
PSU requirements are defined mostly by the graphics card. I suspect that your 525w psu may be old and insufficient.
 
Ideally, we need to know the exact model number and revison of your B350 motherboard and similarly, the manufacturer and part number for your "525W" PSU.

Personally, I'd opt for the 5900X, but I'd be happier placing it on a motherboard with heatsinks on the VRMs. Still, if you don't overclock it with PBO, a B350's VRMs should cope.

Provided you have a high quality PSU, 525W might be sufficient, but I'd factor in a good 650W or 750W unit if the warranty on your existing PSU has run out.

I run my 7950X up to its 95C limit from time to time in video renders, using an NH-D15 air cooler.

If you're desperate to keep things cool, you could mess around with CPU power limits in the motherboard BIOS, but I wouldn't bother. Modern CPUs are designed to boost up to the thermal ceiling unless you're paranoid.
One step forward...one step back....

I just want to improve the file conversion times. The house cad files are getting so big that even a simple task like saving my work runs into 15 second delays. Converting a pdf to dxf can be a 3 minute wait.

I'm hoping the 5700x can cut 3 minute jobs into a minute and I don't care as much if the 5900x cuts another 5 seconds. Unless the 5900x makes 3 minute jobs into 30 seconds, it won't be worth any potential headaches.

Problem is, I won't know until I do the changes. Of course if someone has experience, I love to hear about it.
 
Since autocad is primarily single threaded im not sure if either will really matter, technically the 5900X has slightly faster base and boost clocks, but it wouldnt be a night and day difference, the 5700X runs at 3.4 Ghz base and 4.6 Ghz boost vs 3.7 and 4.8 Ghz on the 5900X. The 5900X is the better cpu, but it likely wont be a night and day difference between the two for most of your tasks.
 
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One step forward...one step back....

I just want to improve the file conversion times. The house cad files are getting so big that even a simple task like saving my work runs into 15 second delays. Converting a pdf to dxf can be a 3 minute wait.

I'm hoping the 5700x can cut 3 minute jobs into a minute and I don't care as much if the 5900x cuts another 5 seconds. Unless the 5900x makes 3 minute jobs into 30 seconds, it won't be worth any potential headaches.

Problem is, I won't know until I do the changes. Of course if someone has experience, I love to hear about it.
You may also want to look at getting 64GB ram (running at at least 3200 mhz) and as fast an SSD as you can get to help with these times as well.
 
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I have no idea how much of an improvement I will have going from 1700x to 5700x. It could be multiples or it can be two figure percentages.

I was going to upgrade to a B650, 7700x and memory, but now the $600 creeps to $900 AND a couple of hundred for Windows. At that point, might as well build a complete unit.

After i build the house, I don't care about speed. It didn't bother me for the last 6 years and not likely to bother me for the next 6 years. By then, the 9900x is $200 and another round of upgrade is $600.

I remember my first computer was $3,300 and today's money, close to $8,000. Then 5 builds capped at $1200. That's why I'm still running a RTX660 from 2012. Two builds ago.

From memory...1985...1992...1998...2005...2012...2018....2024 upgrade...next is the brain chip implant...
 
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i have a 5900x with a peerless assasin 120 on it. it runs very cool and quiet. heat won't be an issue with the better cooler you're looking at. i have PBO enabled and let it do whatever it wants. don't think i've ever seen it above 75 degrees even running a torture test.

as for how it will effect your program times vs a 5700x is hard to say. does what you are doing now already use every core you have? can it use more cores? it's not faster single core operations you're getting with a 5900x vs a 5700x. but rather more cores to do more work if your program can use them.
 
Guys...

I normally use Benchmark and now checking up on the cpu-z numbers.

What i see is that single thread barely improves from 5700x to 5900x. Then the even bigger upgrade to 7600x only puts me in the 767 range.

Are those scores directly affecting the process times? So lets say it takes 3 minutes to do a process with a processor that scores 407. Will it take 1.5 or is it 2 minutes with a processor that scores 627?

Then there is more and faster memory.

This shouldn't confuse the heck out of me yet here we are. It looks that it's going to take empirical testing to know anything concrete.
 
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Guys...

I normally use Benchmark and now checking up on the cpu-z numbers.

What i see is that single thread barely improves from 5700x to 5900x. Then the even bigger upgrade to 7600x only puts me in the 767 range.

Are those scores directly affecting the process times? So lets say it takes 3 minutes to do a process with a processor that scores 407. Will it take 1.5 or is it 2 minutes with a processor that scores 627?

Then there is more and faster memory.

This shouldn't confuse the heck out of me yet here we are. It looks that it's going to take empirical testing to know anything concrete.
with 5900x
https://valid.x86.fr/2ipb2t
if you want i can give you and one with 5700x , i've these two cpu
without oc and PBO is AUTO
here with 5700x
https://valid.x86.fr/f8up2t
 
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As I said single thread performance is little difference between the 2. The 5900x gives you more threads if your software can use it. But each thread still runs about the same as a single 5700x thread. If software does not use the thread then it sits there idle doing nothing for you.
 
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As I said single thread performance is little difference between the 2. The 5900x gives you more threads if your software can use it. But each thread still runs about the same as a single 5700x thread. If software does not use the thread then it sits there idle doing nothing for you.
If the computer gives him money, he puts a 5900x, if he has it for games and to pass the time, he puts a 5700x
 
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If the computer gives him money, he puts a 5900x, if he has it for games and to pass the time, he puts a 5700x
I'm retired and after I build my house, it will be back to where I start up the computer once a week for a few hours.

As for money, I designed a lot of machinery on the 1700X and never concerned about waiting, BUT, the house has thousands of parts in stone and roof tiles.
 
I just ran one conversion that takes 3 minutes...on the 1700X

Core 1 and 2 would go up to 3721mhz the rest of the cores came on and off but NEVER all of them at the same time.

At the end of the run I went from 31C to 47C

The case fans are limited to medium.

Also downloaded cpuZ and ran it's test. I got 402 single, 3943 multi.

https://valid.x86.fr/h7y85c#google_vignette

I don't know if this good, bad or normal.
 
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with 5900x
https://valid.x86.fr/2ipb2t
if you want i can give you and one with 5700x , i've these two cpu
without oc and PBO is AUTO
here with 5700x
https://valid.x86.fr/f8up2t
I noticed that your temperature on the 5700X was lower then mine. Is that because of a good cooler? I don't have a clue what I'm cooling with. If it came with a stock cooler, then that's what I'm using.

The 5900x was substantially higher but nothing outrageous.

Is your cooler on the 5900X better, equal or worse then what I bought?
 
I noticed that your temperature on the 5700X was lower then mine. Is that because of a good cooler? I don't have a clue what I'm cooling with. If it came with a stock cooler, then that's what I'm using.

The 5900x was substantially higher but nothing outrageous.

Is your cooler on the 5900X better, equal or worse then what I bought?
both are below in the signature
5900X - iCUE H115i ELITE CAPELLIX XT
5700X-Thermalright Phantom Spirit 120 EVO
You will get something depending on the money you want to spend.
If you are only thinking about a processor and not a motherboard, I would say the 5700x.
If you also change the motherboard, then go to the 5900x but you will need a better one than the one you have in the VRMs
*** You've very old bios on your motheboard (3.40 and the last bios is 10.31)
 
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both are below in the signature
5900X - iCUE H115i ELITE CAPELLIX XT
5700X-Thermalright Phantom Spirit 120 EVO
You will get something depending on the money you want to spend.
If you are only thinking about a processor and not a motherboard, I would say the 5700x.
If you also change the motherboard, then go to the 5900x but you will need a better one than the one you have in the VRMs
*** You've very old bios on your motheboard (3.40 and the last bios is 10.31)
If I change the motherboard then not only $200 for the board, add windows at $200. Plus more expensive memory. Might as well go to AM5 with a 7600x then wait for the 9900x to come within range or whatever a $250 cap allows in the next 5 years.

Yes, i know, nobody keeps the same computer for 15 years. But hey, I got 4 year old daily shoes....and same wife for 50 years...

I already bought the Thermalright Phantom Spirit. That means the 5700x should be well cooled.

Yes, I know my bios was never updated. It is dead reliable so didn't want to touch it...until now.
 
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Hi pops, what was your Windows? Can't you log in to same account on new mobo and save windows money?
I don't know son. When I built it in '18, the Microsoft guy took over the "new" computer and upgraded 8 to 10 pro. I don't have a key and as far as I know, it's locked into the mobo.

Back then they wanted everyone to migrate to 10 and did it for free.
 
I'm upgrading from a Ryzen 1700X on a Asrock B350 board. Built it in 2018 and had absolutely ZERO issues.

Right now and up to Jan 12th I need to make a decision if I should go with the Ryzen 5700X or the 5900X.
I have them both, unopened and ready to upgrade update the BIOS and install one OR the other.

Cooling is a new Thermalright Phantom Spirit 120

RAM: Upgrading from 2 x 8GB 2400 to 2 x 16GB 3200

GPU: Upgrading from RTX 660 to Asus Dual RX 6600

PSU: 525 watts

Case: Conventional mid tower

Everything was bought from Black Friday and I was suppose to put up this post a long time ago to upgrade but delayed...because if i went ahead, i was afraid of any problems that would pop up and i couldn't use the computer.

1***Because of concerns for heat issues and longevity, do i go to the 5700x or go all the way to 5900x?

2***Is the fan going to be a lot noisier?


3***If I go with the 5900x, can I limit voltage or is there software built in to throttle the heat issue?

4***Do I have enough power to run the 5900x?


I'm not a gamer, I just run AutoCad, Chief Architect for fun and surf. I want to cut down on some of the larger design that take up time to process. I just have to January 12 to bring one or the other processor back.

HELP!!! And thank you in advance!

(BTW...I trust opinions from you guys 1000x more the computer part jockeys at BestBuy!)


so heres a opinion whos ran both processors and currently owns both

if you want the best out of your system

5900x but your going to be 1 water cooling it or 2 playing around with voltages to keep it cool.

i had mine stable at 4.7 at 1.3v the processor. which keeps idle temp at 43 and full cores loaded at 83c


otherwise will be at 1.4v and 1.5v and on air it will not be stable if your system pushes all cores as i said requires tinkering and im running it on iv assassin


next is 5700x

its a power sipper wont require any tinkering on average barely pulls over 110w on full load. stays around 1.1-1.2v

predicted temps with your cooler around 30-35c idle max temp 65c


also go for 4 stick kit do not mix

32gb 3200mhz cl 16 the cl16 is important this number benefits quicker processes quicker.
 
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so heres a opinion whos ran both processors and currently owns both

if you want the best out of your system

5900x but your going to be 1 water cooling it or 2 playing around with voltages to keep it cool.

i had mine stable at 4.7 at 1.3v the processor. which keeps idle temp at 43 and full cores loaded at 83c


otherwise will be at 1.4v and 1.5v and on air it will not be stable if your system pushes all cores as i said requires tinkering and im running it on iv assassin


next is 5700x

its a power sipper wont require any tinkering on average barely pulls over 110w on full load. stays around 1.1-1.2v

predicted temps with your cooler around 30-35c idle max temp 65c


also go for 4 stick kit do not mix

32gb 3200mhz cl 16 the cl16 is important this number benefits quicker processes quicker.
Thank you.

Given all the input from you guys...I'm going with the 5700x. Reliability is very important to me particularly now that I'm going to be buried in a major project. It's the only computer in the house and I certainly wont have 10 hours to spend debugging a problem. Or a few days in the shop. Plus the LAST thing I need is to have all the contracts and personal info unsupervised in someone's hands.

I'm also going with the GSkill Ripjaw 16mbx2 3200 CL16. One store clerk said go with 4x8mb but then ANOTHER clerk said go with the 2x16mb because windows rarely taps all four sticks. Sure, give someone with a bit of an obsessive personality multiple choice solutions....

THANK YOU TO ALL WHO CONTRIBUTED in helping me make a decision. As usual, asking informed people with a keen interest in the subject beats parts jockey EVERY TIME!
 
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