Hello, is the best cooler for 8700K the NH-D15S? What is the best cooler for the i7-8700K and the i5-8400? Some people mentioned that although the 8400 comes with a cooler, it is junk. Can I save some money using the stock cooler for the 8400? Thanks
What is the best cooler for 8700K and 8400?
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feelinfroggy777
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The Noctua NH-D15 is one of the best air coolers on the market, but it is also one of the most expensive. It will be great to pair with the 8700k. If it is too much look at the Cryorig H5 Universal. It is about half the price and is a very good air cooler.
As for the 8400, the stock cooler is more than adequate for the 8400. But it is just kinda loud. How loud will depend on a lot of things, most importantly your case. If you go with an 8400, I suggest using the stock cooler at the beginning, and then decide if it is too loud for your situation. As for thermals, the stock cooler will have no issues with the 8400 as it is a 65 watt TDP part and is a locked chip that does not support overclocking. High end cooling is only really necessary for overclocking.
As for the 8400, the stock cooler is more than adequate for the 8400. But it is just kinda loud. How loud will depend on a lot of things, most importantly your case. If you go with an 8400, I suggest using the stock cooler at the beginning, and then decide if it is too loud for your situation. As for thermals, the stock cooler will have no issues with the 8400 as it is a 65 watt TDP part and is a locked chip that does not support overclocking. High end cooling is only really necessary for overclocking.
Thanks. Comparing the NH-D15S with the Cryorig H5 Universal, which is quiet? Is the difference noticeable? From the photo, it seems both come with thermal paste.
I am using Be Quiet Dark Base PRO 900.
For the 8400, is the stock cooler sufficient if I OC? I plan to use DDR4-3200 or 3600 RAM. It looks like anything over 2880 require OC.
I always use i7 rather than i5 or i3 from the beginning of their existence. I noticed that the 8700K has double the number of threads than the 8400. I am not building the machine for gaming. For number crunching and scientific computation, is there a noticeable gain in performance on the 8700K over the 8400?
I am using Be Quiet Dark Base PRO 900.
For the 8400, is the stock cooler sufficient if I OC? I plan to use DDR4-3200 or 3600 RAM. It looks like anything over 2880 require OC.
I always use i7 rather than i5 or i3 from the beginning of their existence. I noticed that the 8700K has double the number of threads than the 8400. I am not building the machine for gaming. For number crunching and scientific computation, is there a noticeable gain in performance on the 8700K over the 8400?
feelinfroggy777
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The Cryorig H5 runs from 20-24db and the Noctua NH-D15 runs from 19-24. So they are both about the same. Both should come with thermal paste.
With your case, there will not be a difference it sound. It will be a quite system. Even if you are running a 8400 with a stock cooler.
The 8400 is a locked CPU, so that means that it cannot be overclocked. So the stock cooler will be efficient. The only way to run DDR4 RAM at 3200mhz or 3600mhz is to get a z370 board and overclock the RAM. Overclocking the RAM wont impact the heat of the CPU, so the CPU wont have any impact on RAM overclocking. Additionally, Intel CPUs don't scale to much with faster RAM. I would not recommend getting RAM over 3200mhz because higher speeds cost more and you wont see much, if any, performance boost.
It depends on the applications you will be using. Sounds like you are building a workstation. Workstation task usually do much better with more cores and more threads. So the 8700k will pull ahead there.
Intel CPUs are great for gaming, but AMD has the advantage for productivity and workstations. You should consider the 2700x and x470 motherboard. The 2700x has 8 cores and 16 threads and smashes the 8700k in workstation task.
With your case, there will not be a difference it sound. It will be a quite system. Even if you are running a 8400 with a stock cooler.
The 8400 is a locked CPU, so that means that it cannot be overclocked. So the stock cooler will be efficient. The only way to run DDR4 RAM at 3200mhz or 3600mhz is to get a z370 board and overclock the RAM. Overclocking the RAM wont impact the heat of the CPU, so the CPU wont have any impact on RAM overclocking. Additionally, Intel CPUs don't scale to much with faster RAM. I would not recommend getting RAM over 3200mhz because higher speeds cost more and you wont see much, if any, performance boost.
It depends on the applications you will be using. Sounds like you are building a workstation. Workstation task usually do much better with more cores and more threads. So the 8700k will pull ahead there.
Intel CPUs are great for gaming, but AMD has the advantage for productivity and workstations. You should consider the 2700x and x470 motherboard. The 2700x has 8 cores and 16 threads and smashes the 8700k in workstation task.
Thanks. Actually I am in a messy situation. While I was going to order parts to build a powerful workstation using the i9-7900X, I found that the Meltdown/Spectre issue could impact the performance of my work by up to about 20%. So, I do not want to invest big money on this system. However, I also need a machine to get work done as my computer is 10 years old. Too old to do CUDA-GPU computations. Meanwhile, CPUs with Meltdown/Spectre won't be out until later half of this year with no specific month known. So, I am considering to make a temporary system with the most re-usable parts to use during this waiting period. Any suggestion?
I read that 7900X performs better in some scientific applications that do not require so many cores. So in some cases it is better than the Threadrippers. How is the 2700X with compared with the 8700K and 8400? If I go for the 2700x path, I may not be able to re-use the RAM when Intel CPUs with bug removed at hardware level come out.
I read that 7900X performs better in some scientific applications that do not require so many cores. So in some cases it is better than the Threadrippers. How is the 2700X with compared with the 8700K and 8400? If I go for the 2700x path, I may not be able to re-use the RAM when Intel CPUs with bug removed at hardware level come out.
feelinfroggy777
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While the Specter and Meltdown issues are very real, there has been a lot of misinformation about the impact of the patches. The key word you said there was "up to" 20%. There are very few specific processes that you will have 20% performance loss. Most will be nominal to single digit performance loss.
But I would not buy a 7900x. It is just too expensive and they run too hot. It was a rushed CPU that did not do very well. Here is the 2700x review:
https://www.tomshardware.com/reviews/amd-ryzen-7-2700x-review,5571.html
As for Threadripper, I have a 1950x and I love it. But if you are using applications that run better on single core performance, then the 8700k is king. But, if you can run use all the cores, then the 32 threads of the 1950x has no competition.
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