Does i5-4590 bottleneck RX 480?

KalashnjukUA · May 11, 2017

Hi there!
My PC specs are:
i5-4590
rx 480
16gb DDR3
monitor 1440x900 ( I wish I had FULLHD really )
Well, sometimes while playing Witcher 3 or GTA 5 my processor is loaded above 80% up to 95% but GPU is just 60-70. Perhaps is it related with my monitor resolution? As I know that if I had FullHD monitor, my GPU load would be above 95 everytime.
If you could, please tell me whether the time has already come to change my monitor to FullHD or 1440x900 still good enough in 2017? ( Really so sorry If my question is silly )

I am interested in whether my CPU bottlenecks my GPU and if it is the time to change the processor.
Thanks a lot in advance!

P.S. Hello from Ukraine!

Logan finch · May 11, 2017

Rx 480 red devil 8gb?

KalashnjukUA · May 11, 2017

Logan finch :

No
HIS Roaring

bicycle_repair_man · May 11, 2017

The CPU won't bottleneck the GPU, it's just that certain games are more CPU-intensive than others.

Only you can decide if an upgrade to 1920x1080 is worth the money. If it is, then by all means go for the RX 480. If not, then an RX 470 will be plentiful.

KalashnjukUA · May 11, 2017

bicycle_repair_man :

Dude I have already got RX 480

Well, as I understood, the processor is still powerful enough, isnt' it?

The Paladin · May 11, 2017

well considering;

The Witcher 3:Recommended Requirements
CPU: Intel CPU Core i7 3770 3.4 GHz / AMD CPU AMD FX-8350 4 GHz
RAM: 8 GB
OS: 64-bit Windows 7 or 64-bit Windows 8 (8.1)
Video Card: Nvidia GPU GeForce GTX 770 / AMD GPU Radeon R9 290

and

Grand Theft Auto V Recommended Requirements
CPU: Intel Core i5 3470 @ 3.2GHZ (4 CPUs) / AMD X8 FX-8350 @ 4GHZ (8 CPUs)
RAM: 8 GB
OS: Windows 8.1 64 Bit, Windows 8 64 Bit, Windows 7 64 Bit Service Pack 1
Video Card: NVIDIA GeForce GTX 660 2GB / AMD Radeon HD 7870 2GB

I highly doubt your CPU is throttling anything, but these games are known to do CPU intensive and your numbers show this.
you could find an used I7 4790 on eBay and give your system a boost but.. I don't see it needing it right away no.

KalashnjukUA · May 11, 2017

The Paladin :

Well, I don't think there is any throttling either.
If CPU usage is not 100% this is within normal limits, isn't it?

The Paladin · May 11, 2017

Easiest way to know is run HWINFO while gaming then you will see if "throttling" is marked at 0% or something else.
but I doubt it does. if it did you would see issues like skipping, lower FPS all the sudden etc.

KalashnjukUA · May 11, 2017

The Paladin :

I'm going to check it out but actually speaking I doubt it does as well.

KalashnjukUA · May 11, 2017

The Paladin :

As we thought, there is no throttling

bicycle_repair_man · May 11, 2017

The reason you're seeing high CPU usage is because certain games are multi-threaded. GTA V and The Witcher 3 fall into this category, as does Deus Ex: Mankind Divided.

Your GPU isn't holding your CPU back.

n0ns3ns3 · May 11, 2017

The only real bottleneck in computers are HUMANS.
RX 480 is well paired to this CPU.
A user can cause any component to be the bottleneck in any system.
When you get FHD monitor the resolution increases -> more work for GPU.
When you lower graphics settings GPU has less work to do on each frame, so CPU has to do more work to provide data for more frames.

KalashnjukUA · May 11, 2017

n0ns3ns3 :

Hmm. Whether I got you right? If I get FHD monitor, the situation will be changed as the higher resolution - the more GPU usage is

The Paladin · May 11, 2017

correct

n0ns3ns3 · May 11, 2017

^exactly. a FHD has ~40% more pixels than your current monitor. GPU utilization is almost linearly dependent on pixel count changes.
So you can expect the GPU utilization much closer to golden 99%.
As a side note, both GTA and Witcher are CPU intensive titles so it's normal them to have high CPU usage. That's very common for "open world" titles or any other games with large amount of objects/characters in the scene.
The CPU is usually responsible to calculate what should happen to those objects in the next frame and then pass the "what and where draw" info to the GPU. Of course CPU has to do other work as well.

KalashnjukUA · May 11, 2017

n0ns3ns3 :

Thanks a lot!
I am really grateful for you reply!

n0ns3ns3 · May 11, 2017

You are welcome

Does i5-4590 bottleneck RX 480?

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