will pci express(1.0 obv ) will bottleneck for rx 470??

[Cale]

so imma buy rx 470 which is pcie 3.0... but mah darn dell motherboard got "pci-express"(that's what cpu-z says,so i guess it means pcie 1.1)... im saying does gpu uses pci slots 100%..? and if yes then how much it gonna bottleneck mah gpu??

  mah cpu: core i5-3340 

8GB 1333mhz RAM 

 350W psu(ill upgrade psu so dun worry )....

 

 it its bout 3%-5% performance drop then im okay with it.. .. please reply..

[WhitetailAni]

Can you take a screenshot of the GPU-Z?

[da na]

What is the model of your Dell machine?

[Zando_]

I very much assume it'd be PCIe 3.0 considering that's what the CPU runs.

[manikyath]

i would assume it's not showing a generation, because nothing is plugged into the slot, and it's not negotiating a generation as a result?

[mariushm]

The motherboard and the operating system will switch pci-e slots from pci-e 3.0 to 2.0 or 1.1 if there's nothing installed on them, or if the device (video card, network card, whatever) isn't doing a lot of work, in order to save power.

Video cards can also switch between using 16 pci-e lanes to using only 8 pci-e lanes, if there's no need to use 16... again, in order to save power.

 

But yes, even if your slots are actually only 1.1, the video card should still work... it will just be less available transfer speed. pci-e 1.1 is 250 MB/s on each lane, pci-e 2.0 is 500 MB/s  and pci-e 3.0 is around 985 MB/s on each lane.

So with 16 pci-e lanes, pci-e x16 v1.1 is around 4 GB/s  which is equivalent of pci-e x8 v2.0 ,  which is almost the same as pci-e x4 v3.0

 

[tkitch]

So, a 3rd Gen i5 supported PCI-E 3.0

 

https://ark.intel.com/content/www/us/en/ark/products/65520/intel-core-i5-3570k-processor-6m-cache-up-to-3-80-ghz.html

 

So, the oldest the motherboard would be is a Gen 2 PCI-E.  (There's no reason for it to be PCI-E 1.1)

[LogicalDrm]

-> Moved to Graphics Cards

[Cale]

On 2/24/2021 at 8:04 PM, LogicalDrm said:

 

first off im sorey for super late reply... and thank u guys so much.. its actually ivy bridges Processor and LGA 1155 socket...  both use upto pcie 3.0 ×16... finally figured it out.. it sucks to be a gamer but empty on pocckets llol