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Is there a way to tell if a cpu will bottleneck a gpu according to the cpu specs?

Couccun
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can i simply say: this i3000 has a clock speed of x so i can run a gpu with y cuda cores or is it just impossible to tell if a cpu would bottleneck a gpu according to clock speeds or cores?

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Not possible, bottlenecking is not really a yes or no question and varies with different types of loads.

Crystal: CPU: i7 7700K | Motherboard: Asus ROG Strix Z270F | RAM: GSkill 16 GB@3200MHz | GPU: Nvidia GTX 1080 Ti FE | Case: Corsair Crystal 570X (black) | PSU: EVGA Supernova G2 1000W | Monitor: Asus VG248QE 24"

Laptop: Dell XPS 13 9370 | CPU: i5 10510U | RAM: 16 GB

Server: CPU: i5 4690k | RAM: 16 GB | Case: Corsair Graphite 760T White | Storage: 19 TB

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Bottlenecks are completely situational so yes it would be impossible. The same gpu and cpu combination can have a cpu bottleneck in one game while having a gpu bottleneck in another. 

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3 minutes ago, Couccun said:

can i simply say: this i3000 has a clock speed of x so i can run a gpu with y cuda cores or is it just impossible to tell if a cpu would bottleneck a gpu according to clock speeds or cores?

A lot of the experienced guys on the forum can just tell by looking at the list if either would be a bottleneck, but it can also depend a lot on the game. 

For example: Rainbow six Siege is a CPU hog. I have an 8700k and a GTX 1060 6GB. GPU sits at 100% usage (as it should), but my CPU also sits close to 85% while playing. But what is odd is that changing affinity (Number of cores the program can use) to 4 cores instead of 6 doesn't decrease framerate... 

TL;DR, it depends on the game, but you CAN tell somewhat based on cpu cores and GPU power. 

example: an i3 7000 series and a GTX 1080 will most likely bottleneck in almost every game. But an i5 7000 series would not in most games. 

Fine you want the PSU tier list? Have the PSU tier list: https://linustechtips.com/main/topic/1116640-psu-tier-list-40-rev-103/

 

Stille (Desktop)

Ryzen 9 3900XT@4.5Ghz - Cryorig H7 Ultimate - 16GB Vengeance LPX 3000Mhz- MSI RTX 3080 Ti Ventus 3x OC - SanDisk Plus 480GB - Crucial MX500 500GB - Intel 660P 1TB SSD - (2x) WD Red 2TB - EVGA G3 650w - Corsair 760T

Evoo Gaming 15"
i7-9750H - 16GB DDR4 - GTX 1660Ti - 480GB SSD M.2 - 1TB 2.5" BX500 SSD 

VM + NAS Server (ProxMox 6.3)

1x Xeon E5-2690 v2  - 92GB ECC DDR3 - Quadro 4000 - Dell H310 HBA (Flashed with IT firmware) -500GB Crucial MX500 (Proxmox Host) Kingston 128GB SSD (FreeNAS dev/ID passthrough) - 8x4TB Toshiba N300 HDD

Toys: Ender 3 Pro, Oculus Rift CV1, Oculus Quest 2, about half a dozen raspberry Pis (2b to 4), Arduino Uno, Arduino Mega, Arduino nano (x3), Arduino nano pro, Atomic Pi. 

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8 minutes ago, Couccun said:

well, thanks for the quick response

No problem. If you have specific hardware you're curious about, feel free to ask here. :D

Fine you want the PSU tier list? Have the PSU tier list: https://linustechtips.com/main/topic/1116640-psu-tier-list-40-rev-103/

 

Stille (Desktop)

Ryzen 9 3900XT@4.5Ghz - Cryorig H7 Ultimate - 16GB Vengeance LPX 3000Mhz- MSI RTX 3080 Ti Ventus 3x OC - SanDisk Plus 480GB - Crucial MX500 500GB - Intel 660P 1TB SSD - (2x) WD Red 2TB - EVGA G3 650w - Corsair 760T

Evoo Gaming 15"
i7-9750H - 16GB DDR4 - GTX 1660Ti - 480GB SSD M.2 - 1TB 2.5" BX500 SSD 

VM + NAS Server (ProxMox 6.3)

1x Xeon E5-2690 v2  - 92GB ECC DDR3 - Quadro 4000 - Dell H310 HBA (Flashed with IT firmware) -500GB Crucial MX500 (Proxmox Host) Kingston 128GB SSD (FreeNAS dev/ID passthrough) - 8x4TB Toshiba N300 HDD

Toys: Ender 3 Pro, Oculus Rift CV1, Oculus Quest 2, about half a dozen raspberry Pis (2b to 4), Arduino Uno, Arduino Mega, Arduino nano (x3), Arduino nano pro, Atomic Pi. 

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