Need advise for a good system for a RTX 3090.

[Diabolous]

Hello, I am planning to upgrade to a RTX 3090 card, but my old system (i7 8700k etc.) will certainly bottleneck the new GPU and will impact performance.

 

At the moment, I am planning to go for an Intel 10th gen i7 or i9 (10700k, 10850k or 10900k). I mainly game with my system, I also work and edit/process videos etc, but most important for me is gaming performance. And what is up with the 10850k? it is also a 10 core CPU, same speed and power consumption as the 10900k so no idea what the difference is, but is cheaper. I saw the new Ryzen CPU series numbers but speed per cores are lower than the i7 or i9?, and I don't trust much the AMD's performance chart, and it will be more expensive than intel (confirmed by AMD).

 

So, what is the best motherboard and good speed RAM to pair for a 10th gen intel + RTX 3090, also I may need a new PSU? Currently, I have the EVGA SuperNova G2 850W, would it be enough for the system? I have a Samsung 970 EVO 1TB, Samsung 860 EVO 2TB and a Samsung 850 EVO 500GB installed.

 

For Case and CPU cooler you can check my previous post HERE or to make long story short... Case:P500A and CPU cooler: NH-D15 chromax.black.

 

Wondering if 850W will manage the system well.

 

Thank you in advance. 

 

EDIT:

  

On 10/12/2020 at 5:03 PM, Sammarok said:

Thank you all for your comments and suggestions. Now let me clarify some things.

 

I cannot overclock my i7 8700k higher than 4.7ghz, even 4.8ghz is not stable, I tried and tested it many times and cannot go higher than 4.7ghz. On top of that, the 8700k at 4.7ghz is already bottlenecking the overclocked 2080 Ti. I cannot delid the CPU because already have a different owner and that person is fine with 4.7Ghz (he does not care about OC), btw my old system is already sold (but not my PSU).

Apart from gaming, I process, edit and export 4K videos every day, a better CPU than the 8700k would really help me too. I do more daily work on my PC than what I listed here but is not relevant to the hardware because is Database programming work. It may be, in the near future, that I will need to process some 3D work with After Effects and/or Autodesk 3ds Max.

 

For gaming, I do play in 4K, but I also record playthroughs, benchmarks, performace reviews, etc. for a youtube channel. So having the RTX 3090 will ensure max performance on the GPU side. The 3080 20Gb that may be released in December looks like a good option but is listed as the same amount of CUDA cores as the 3080 10Gb, I bet it will not beat the 3090.

 

EDIT: The RTX 3090 will arrive in 10 days, so still, need a good combination of:

• CPU
• Motherboard
• RAM (non RGB)

Motherboard must be solid for overclocking CPU.

 

[boggy77]

for gaming, the 3090 is not worth it. it has about  10% more performance than the 3080, for double the price.

as for cpu, ryzen 5000 series should beat intel 10th series, from what was leaked/presented so far. it's also more power efficient. but it's up to you.

 

[Kilrah]

6 minutes ago, Sammarok said:

I saw the new Ryzen CPU series numbers but speed per cores are lower than the i7 or i9?

No they're supposed to be higher, up to 20%... but those are first party numbers, so you'd want to wait for actual reviews.

[AndreiArgeanu]

11 minutes ago, Sammarok said:

And what is up with the 10850k?

It just seems like a lower binned 10900K.

11 minutes ago, Sammarok said:

I saw the new Ryzen CPU series numbers but speed per cores are lower than the i7 or i9?

Clock speeds isn't everything, the FX 9590 was clocked at 5ghz and it performed worse than CPU's clocked far lower. The IPC improvements AMD has over intel definitely makes them the better choice. So regardless of whether you're doing work, or gaming AMD is the best choice, at the moment.

[Princess Luna]

What are you going to do with the computer? if its gaming only you actually can go i7 8700K + RTX 3080 and have it all for gaming.

 

The i7 8700K specially at 5ghz will still deliver pretty much on pair gaming performance with the r9 3950x and i9 10900K the difference is not that meaningful at all if you just game without heavy multi-tasking on the side and like stated above the RTX 3090 barely improves on things over the RTX 3080.

[spartaman64]

850w should be plenty. also what resolution are you planning to game on. at 4k the cpu makes a negligible difference

[Diabolous]

Thank you all for your comments and suggestions. Now let me clarify some things.

 

I cannot overclock my i7 8700k higher than 4.7ghz, even 4.8ghz is not stable, I tried and tested it many times and cannot go higher than 4.7ghz. On top of that, the 8700k at 4.7ghz is already bottlenecking the overclocked 2080 Ti. I cannot delid the CPU because already have a different owner and that person is fine with 4.7Ghz (he does not care about OC), btw my old system is already sold (but not my PSU).

Apart from gaming, I process, edit and export 4K videos every day, a better CPU than the 8700k would really help me too. I do more daily work on my PC than what I listed here but is not relevant to the hardware because is Database programming work. It may be, in the near future, that I will need to process some 3D work with After Effects and/or Autodesk 3ds Max.

 

For gaming, I do play in 4K, but I also record playthroughs, benchmarks, performace reviews, etc. for a youtube channel. So having the RTX 3090 will ensure max performance on the GPU side. The 3080 20Gb that may be released in December looks like a good option but is listed as the same amount of CUDA cores as the 3080 10Gb, I bet it will not beat the 3090.

 

EDIT: The RTX 3090 will arrive in 10 days, so still, need a good combination of:

• CPU
• Motherboard
• RAM (non RGB)

Motherboard must be solid for overclocking CPU.