[SOLVED] GPU upgrade, CPU bottleneck question

Feb 20, 2019
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My current set up:

Motherboard B85M-E
CPU i7-4790 (8 CPU @ 3.60GHz)
RAM 16GB (DDR3 4GB x 4)
Graphics Card NVIDIA GeForce GTX 1050
Monitor 1440p 144Hz
PSU EVGA 500W 80+ Bronze (B1)
Storage 2 x 250GB SSD, 1 x 500GB HDD

I'm deciding on upgrading my GPU as GTX 1050 is falling behind my new 1440p 144Hz monitor.
I know my CPU and the motherboard isn't great, but due to being short on budget, I only have option to upgrade GPU.

I have been looking around a lot, and three options I concluded with help of others are:
  1. RX 5700 XT (CA$530)
  2. RX 590 (CA$230) or GTX 1650 Super (CA$220)
  3. GTX 1660 Ti (CA$330)
Where would my CPU bottleneck the GPU? I don't think I will be upgrading my CPU so soon.
My main use of the computer is playing competitive online games, including LoL and Overwatch, with occasional Witcher 3 and Civ 6.
I also do video and photo editing at 2k, with Adobe Premiere Pro and Photoshop.

Which upgrade would be minimum if I am to get 1440p 144Hz on Overwatch, with low graphics settings?
I saw youtube benchmark that RX 590 was pulling 90 fps on 1440p Ultra settings - would it be enough for me to get 144Hz?

+ Would I need to upgrade my PSU as well?
 
The i7-4790 is a nice CPU and it can still perform very well on games.
I would go with the RX 5700 XT...but do not buy the single fan blower design, it will have thermal issues.
Last year I upgraded a i7-4790 PC to a GTX 1070 and the CPU was keeping up with it.
Make sure to keep the CPU cool and you might need a PSU (650W) that can deliver enough power to the RX 5700 XT GPU.
I don't think a EVGA 500W B1 can't do that.
 
Last edited:
Reactions: jkei333
The i7-4790 is a nice CPU and it can still perform very well on games.
I would go with the RX 5700 XT...but do not buy the single fan blower design, it will have thermal issues.
Last year I upgraded a i7-4790 PC to a GTX 1070 and the CPU was keeping up with it.
Make sure to keep the CPU cool and you might need a PSU (650W) that can deliver enough power to the RX 5700 XT GPU.
I don't think a EVGA 500W B1 can't do that.
 
Last edited:
Reactions: jkei333
Feb 20, 2019
15
1
15
0
The i7-4790 is a nice CPU and it can still perform very well on games.
I would go with the RX 5700 XT...but do not buy the single fan blower design, it will have thermal issues.
Last year I upgraded a i7-4790 PC to a GTX 1070 and the CPU was keeping up with it.
Make sure to keep the CPU cool and you might need a PSU (650W) that can deliver enough power to the RX 5700 XT GPU.
I don't think a EVGA 500W B1 can't do that.
Oh.. I just realized my motherboard is PCI-e 3.0 compatible. Would this impact my performance with RX 5700 XT?

Edit: upon research, it seems like there is not much difference unless I'm doing 3D design.
 
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