Question i9 9900k or i7 8086k

[Kradeca_]

Hey there,
I've decided that its time to upgrade my CPU from i5 4460 to i9 9900k or i7 8086k. I want to know what is your opinion about this question, because a friend of mine can OC i7 8086k easily make it to 5.0GHz which is really good. So I wonder it is worth buying it and then OC or the 4MB cache difference have pretty big impact for my future machine(i9 9900k 16MBSmartcache i7 8086k 12Smartcache). My friend also can OC i9 9900k up to 4.8 but its a bit harder and im worried about that something could go wrong and CPU can die. At the moment my motherboard is old and ram is ddr3, so I will buy new CPU, motherboard and ram all together.
My Computer:
CPU-i5 4460
GPU-Nvidia 1070
RAM-16GB
regards,
Krad

 

[Oussebon]

The other advantage of the 9900k that you didn't mention there is that it is an 8-core, 16 thread CPU as opposed to the 6 core, 12 thread 8086k.

Let's ignore overclocking for a moment and look at the stock frequency boost tables (i.e. how far each core will go when the CPU is under load, without any overclock)

8086k Turbo Frequency
5,000 MHz (1 core),
4,600 MHz (2 cores),
4,500 MHz (3 cores),
4,400 MHz (4 cores),
4,400 MHz (5 cores),
4,300 MHz (6 cores)

9900k Turbo Frequency
5,000 MHz (1-2 core),
4,800 MHz (3-4 cores),
4,700 MHz (5-8 cores)

If your friend's 9900k only goes to 4.8Ghz then they got very unlucky in the silicon lottery as that's pretty much what the CPU boosts itself to without any intervention from the user.

So. There's pretty much no circumstance under which you'd buy an 8086k over a 9900k if you had free choice of the two.

The 8086k is older and slower and has fewer cores...

If you are overclocking either, you will want a motherboard with very good quality VRMs, and a very powerful cooler, realistically a good 240mm+ AIO.

Have you considered instead an AMD Ryzen CPU?

 

[Kradeca_]

The other advantage of the 9900k that you didn't mention there is that it is an 8-core, 16 thread CPU as opposed to the 6 core, 12 thread 8086k.

Let's ignore overclocking for a moment and look at the stock frequency boost tables (i.e. how far each core will go when the CPU is under load, without any overclock)

8086k Turbo Frequency
5,000 MHz (1 core),
4,600 MHz (2 cores),
4,500 MHz (3 cores),
4,400 MHz (4 cores),
4,400 MHz (5 cores),
4,300 MHz (6 cores)

9900k Turbo Frequency
5,000 MHz (1-2 core),
4,800 MHz (3-4 cores),
4,700 MHz (5-8 cores)

If your friend's 9900k only goes to 4.8Ghz then they got very unlucky in the silicon lottery as that's pretty much what the CPU boosts itself to without any intervention from the user.

So. There's pretty much no circumstance under which you'd buy an 8086k over a 9900k if you had free choice of the two.

The 8086k is older and slower and has fewer cores...

If you are overclocking either, you will want a motherboard with very good quality VRMs, and a very powerful cooler, realistically a good 240mm+ AIO.

Have you considered instead an AMD Ryzen CPU?

Yeah, but the thing is in my country the price between i9 9900k and i7 8086k is around 100-125$ and I have a limit for the money which I can give for CPU. I'm going to buy i9 9900k anyway sooner or later because as you said It has more cores and threads and more cache, but the fact is that I have a friend with 5.3GHz on i7 8086k and he said it's amazing. I've watched comparison between both CPUs and difference is 15-20fps in favor of i9, they were both OC. I know that AMD ryzen has better performance than intel ones, they have more cache and cores but im a fan of intel and in a few years I believe that they will put 32mb cache. I also read articles and talked to my friends which are working with computers and they said that at the beginning they are working fine and after 2-3 years they suddenly begin to underperforming and the temperature is getting high.
The price is really good for the product but I want consistent which AMD doesn't have.
Thanks for the fast respond !

 

[Oussebon]

I don't think your friends give very good advice tbh! I'm sure they're lovely and helpful but it's not a very balanced or accurate picture.

Have you looked at the 9700k instead of the 8086k?

Also, you say you are going to buy a 9900k eventually anyway... are you seriously saying you are going to buy an 8086k and then replace it with a 9900k?

What about the Intel CPUs that are launching in May?

Intel Core i9-10900K, i7-10700K and i5-10600K slides leak

These 14nm 10th generation Comet Lake-S CPUs are expected on 30th April.

hexus.net

 

[Kradeca_]

I have looked for 9700k and I don't like that cores and threads are equal.

I'm not going to 8086k then 9900k, maybe I didn't write it properly. I'm not that stupid and crazy to do that.

The new ones are really good if leaks are correct, almost perfect. But with new generation comes new socket and that means motherboards will be also expensive with this socket for at least a year. In my country they will come probably in December or early January in 2021 and I cannot wait that long without upgrading it.

 

[Oussebon]

You could at least wait and see? See what it looks like for availability when they launch in May I mean,

 

[Kradeca_]

Yep, I'm going to wait and I hope that the price for 9900k will drop down so I can get it cheaper.