Configure New PC 7950x or 13900K

[mvpetropolis]

Hello my friends, I have a little doubt about processors, in fact my doubt would be between the Ryzen 7950x and the Intel 13900F, in fact I saw that Intel has two models, the other would be the 13900K, which seems to be more expensive but performed worse in Benchmark, the 7950x I saw that it only accepts DDR 5 but in my case I'm going to build a complete desktop so I'm not going to reuse memory, but I also don't know if it's worth buying DDR5 memory to what extent does it improve performance in Corona Render? 13900F accepts DDR4 and DDR5 so that would be another doubt since DDR5 motherboards are much more expensive, another thing seems that the 7950x heats up a lot, I live in Brazil in a very hot region, I will definitely use a Walter cooler on this desktop. 360, but would it be enough to withstand hours of rendering? Good friends, I have a lot of doubts but if you could help me, I would really appreciate it...

[Vuk]

Hello there. Both cpu's heat up a lot and if that is one of the main reasons for picking one over the other I would then go for the 7950x. It has a one button solution in Ryzen Master called Eco mode.
By going Eco mode you cut the temperature 30 degrees you also cut the performance a bit but that is the trade off and you can always switch back directly from Windows.

You should also look for a good case with great airflow combined with a big AIO. The Artcic Liquid freezer II 420 is quiet good and yet cheap compared to the competitors. You could also throw a Noctua NH-d15 but from experience I know you will get better results with the bigger AIO, unless you go for a quiet expensive case with superb airflow (fractal design torrent) and cut the margin even more.

Keep in mind that for Intel you need to go for Win 11 to get the best possible performance. You can also play with the settings in Bios to achieve better temperatures but Ryzen is much easier for that. You asked about the difference between 13900k and kf. K is with the onboard VGA while KF is without it. The cpu's should be identical in performance but you always have the silicon lottery part.

I don't know what to tell you about the ram. To be honest ddr4 had ok prices a year ago while ddr5 was 50% more expensive (depends on the market). Now, looks like overnight to me :) prices have been cut in half or even more. ddr5 is cheaper then ddr4 used to be and ddr4 is just crazy cheap now :)

At the end of the day it all depends on your budget and the prices available to you in your market/country. Whatever you choose you won't make a mistake since the performance of both Ryzen and Intel is really close if not identical sometimes ( for our case scenario, rendering, modelling, etc...). Just play with the components, watch some reviews and see what you can get for a good price. Good luck!

[burnin]

Khm... If budget ain't an issue and you got patience... Threadripper Pro (4th gen Zen) got bencharked just a month ago. Ohmm...   

[cgrobo]

If you go with a good 3 fan AIO cooler and a good case, you have nothing to worry about. I run my 7950x on ECO mode, the temps never go above 80C, usually stay around 75C. It's been a while since I tested this but I think there is only a 7% drop in performance in eco mode and 20C drop in temperature. Stock runs at 95C, not worth it IMO.

Make sure you invest in an Nvidia GPU to utilize the Optix denoiser, I don't know how I would work without it.

[mvpetropolis]

Well, I want to thank everyone without exception, thank you very much for every tip and comment, Vuk really about DDR5 I saw that in some cases it actually costs cheaper than DDR4, the motherboard is still a little more expensive, I didn't know that ECO option which makes configuration a lot easier, especially since I'm not a deep connoisseur, Burnin unfortunately my budget won't be able to buy a processor like this at the moment, here in Brazil things are very expensive, the taxes are absurd which makes it very difficult for us budget at the moment is at most for one of the processors, Cgrobo I was very inclined towards the 7950x but on the internet the vast majority of reviews are for games, and it seems that aimed at games the i9 is better especially in the single core comparison which is not In my case, gaming for me is Ps5 desktop work, and the 7950x has a slightly better rating on Benchmark, here in Brazil the 7950x are slightly cheaper, and on the card I intend to put an RTX3060 momentarily because I'm investing more in the processor, Do you think the 12GB 3060 is a good option at the moment?

[mvpetropolis]

Hello there. Both cpu's heat up a lot and if that is one of the main reasons for picking one over the other I would then go for the 7950x. It has a one button solution in Ryzen Master called Eco mode.
By going Eco mode you cut the temperature 30 degrees you also cut the performance a bit but that is the trade off and you can always switch back directly from Windows.

You should also look for a good case with great airflow combined with a big AIO. The Artcic Liquid freezer II 420 is quiet good and yet cheap compared to the competitors. You could also throw a Noctua NH-d15 but from experience I know you will get better results with the bigger AIO, unless you go for a quiet expensive case with superb airflow (fractal design torrent) and cut the margin even more.

Keep in mind that for Intel you need to go for Win 11 to get the best possible performance. You can also play with the settings in Bios to achieve better temperatures but Ryzen is much easier for that. You asked about the difference between 13900k and kf. K is with the onboard VGA while KF is without it. The cpu's should be identical in performance but you always have the silicon lottery part.

I don't know what to tell you about the ram. To be honest ddr4 had ok prices a year ago while ddr5 was 50% more expensive (depends on the market). Now, looks like overnight to me :) prices have been cut in half or even more. ddr5 is cheaper then ddr4 used to be and ddr4 is just crazy cheap now :)

At the end of the day it all depends on your budget and the prices available to you in your market/country. Whatever you choose you won't make a mistake since the performance of both Ryzen and Intel is really close if not identical sometimes ( for our case scenario, rendering, modelling, etc...). Just play with the components, watch some reviews and see what you can get for a good price. Good luck!

Do you think that a 360MM water cooler is no use, does it have to be a 420mm one?

[Juraj]

First of all, don't worry about the CPU temps :- ). Let's go over it:

- These CPUs are designed to survive 90+ C just fine. When they reach threshold, they will simply downclock. They're designed this way, to maximize the boost performance, but they will never (almost!) self-destruct ;- )
- They will also always run hot simply because of their architecture. They're built on modern, dense node. The actual chip under the heat spreader is tiny. So the problem with cooling them, has very little do do with cooler on top, and how capable said cooler is at dissipation of heat into space. Problem is heat transfer between the chip (or chip+heatspreader) and the contact area of heatsink.
- And because of that, it makes very little difference what cooler you actually get. Any big-tower like Noctua NH-D15 or AIO kits like Arctic Freezer will do excellently. And since your worry is about living in hot country, the issue would be your room ambient temperature and no cooling system outside of sub-ambient ones (like AC, ICE or Pelter, etc..) can fight that.

So, don't worry about that at all.

Both Intel and AMD also offer easy "ECO" modes that limit the power-draw. There is power curve to these chips where the difference between 100W and 200W can often be <5perc. Negligible. But your chip will run cooler and your room will be cooler too ;- ).

For Intel:
K includes iGPU and has higher stock clock
KF has no iGPU but keeps higher stock clock
F is budget version without iGPU and with lower stock clock

Both Intel 13gen and AMD 7xxx are excellent choices.

For completely new build, DDR5 makes completely sense. Intel + DDR4 is good if you have a lot of memory you can re-use. Otherwise, DDR5 it is.

[Vuk]

@mvpetropolis

You shouldn't be going anything below a 280 in my opinion for the 7590x or 12900k. 360 is ok of course and even the 280 Arctic Freezer gives better results then a 360 in some online reviews.

[mvpetropolis]

First of all, don't worry about the CPU temps :- ). Let's go over it:

- These CPUs are designed to survive 90+ C just fine. When they reach threshold, they will simply downclock. They're designed this way, to maximize the boost performance, but they will never (almost!) self-destruct ;- )
- They will also always run hot simply because of their architecture. They're built on modern, dense node. The actual chip under the heat spreader is tiny. So the problem with cooling them, has very little do do with cooler on top, and how capable said cooler is at dissipation of heat into space. Problem is heat transfer between the chip (or chip+heatspreader) and the contact area of heatsink.
- And because of that, it makes very little difference what cooler you actually get. Any big-tower like Noctua NH-D15 or AIO kits like Arctic Freezer will do excellently. And since your worry is about living in hot country, the issue would be your room ambient temperature and no cooling system outside of sub-ambient ones (like AC, ICE or Pelter, etc..) can fight that.

So, don't worry about that at all.

Both Intel and AMD also offer easy "ECO" modes that limit the power-draw. There is power curve to these chips where the difference between 100W and 200W can often be <5perc. Negligible. But your chip will run cooler and your room will be cooler too ;- ).

For Intel:
K includes iGPU and has higher stock clock
KF has no iGPU but keeps higher stock clock
F is budget version without iGPU and with lower stock clock

Both Intel 13gen and AMD 7xxx are excellent choices.

For completely new build, DDR5 makes completely sense. Intel + DDR4 is good if you have a lot of memory you can re-use. Otherwise, DDR5 it is.

Thank you very much for the tips, the water cooler I was thinking about getting is this WATER COOLER COOLER MASTER MASTERLIQUID ML360R RGB and the case is the Gamer Rise Mode Galaxy Glass Standard Cabinet, I don't want to spend so much on aesthetics, the case isn't one of the prettiest but it looks like It cools well, it is compatible with 10 fans, it fits 360 mm video so I think at the moment it is enough for an RTX 3060 12 GB, but when I invest in a GPU I would perhaps change the case to support larger cards, but My question is whether with this case and this walter cooler support it will be enough for the 7950x?

[mvpetropolis]

@mvpetropolis

You shouldn't be going anything below a 280 in my opinion for the 7590x or 12900k. 360 is ok of course and even the 280 Arctic Freezer gives better results then a 360 in some online reviews.

unfortunately here in Brazil ARCTIC Liquid are very limited, it is not a brand that you can find in any store here, and that is why it is much more expensive than other traditional brands but which are well accepted in my region, I found this one from ARCTIC Liquid 280 but much more expensive than other brands, I'll do some research to see if these others are as efficient as it, thank you very much...

[Juraj]

I have 13900K in my laptop in form of 13900HX and it does absolutely fine with the microscopic cooling that laptops provide ;- ) Yes it's super loud but that is other thing. And I can run it 170W sustained for hours.

280mm vs 360mm is absolutely meaningless distinction. It's 392cm2 vs 432cm2 in the crudest possible calculation :- ). So less than 10perc. of difference in surface area.
Buy what is available and has good price. ML360 is perfectly ok AIO.

Every AIO will do the same job within +/ 5C degree difference. Arctic is popular because it's one of very few that provide thicker radiator, but every one on market will do ok job.

None of these details will make meaningful difference.

My only advice is to buy good case the first time, you will not enjoy swapping everything, selling the old case, etc. Buy a good, well-sized case the first time and that's it.
And don't underestimate power delivery. Reputable brand with 1000W rating is the right way to go. One thing where saving money is not good idea.

[dj_buckley]

I've just taken delivery of my new workstation. 

It's got the 13900KS (so runs even hotter than the K/KF I believe), I went with the NH-D15 and DDR5 RAM (196GB), I've also got a 4090 in there.  It's absolutely fine in terms of temperatures and I've done plenty of rendering with the CPU at 100% already

Next to it I have an old i9 7980XE and a Threadripper 3990x.  Going off touch alone, the 13900 is the coolest of the lot when they're all rendering.

In terms of power delivery I ended up going with 1200W.

Admittedly I'm in the UK where the climate is nothing like Brazil, but in peak summer my office get's really hot, mainly because I have all my PC's in here, and I'm in a roof space with skylights, so the sun is shining into the office all day during the long hot summer days.  I've not had any overheating issues with any of the PC's.  But I do have a portable AC unit to keep me cool rather than the PC's :)

[mvpetropolis]

I have 13900K in my laptop in form of 13900HX and it does absolutely fine with the microscopic cooling that laptops provide ;- ) Yes it's super loud but that is other thing. And I can run it 170W sustained for hours.

280mm vs 360mm is absolutely meaningless distinction. It's 392cm2 vs 432cm2 in the crudest possible calculation :- ). So less than 10perc. of difference in surface area.
Buy what is available and has good price. ML360 is perfectly ok AIO.

Every AIO will do the same job within +/ 5C degree difference. Arctic is popular because it's one of very few that provide thicker radiator, but every one on market will do ok job.

None of these details will make meaningful difference.

My only advice is to buy good case the first time, you will not enjoy swapping everything, selling the old case, etc. Buy a good, well-sized case the first time and that's it.
And don't underestimate power delivery. Reputable brand with 1000W rating is the right way to go. One thing where saving money is not good idea.

I understand, I'm going to try to buy a slightly better tower, now you say that the power supply has to be a 1000w one? Remembering that I'm going to use an RTX 3070...