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How Does It Actually Works : A PCIE Gen3 x16 card in a PCIE Gen1 x16 Slot

Hi guys I am new to this so please help me

I know that cards are backwards compatible but would like to know how it works and what would be the results if done so.

Also if the card would be affected and if the card would be able to give its best performance if done so

I currently own an Intel Desktop classic series motherboard DG33FB (ddr2) and a Nvidia Geforce 9500GT.

I would also like to know if i could upgrade my graphics card and would appreciate any recommendations.

Hoping to get the best possible response

 

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It's gonna work, but it's gonna be limited by the bandwidth of the PCI-E slot. Here's an example made on a Fury X:

 

perfrel_1920_1080.png

CPU: AMD Ryzen 7 5800X3D GPU: AMD Radeon RX 6900 XT 16GB GDDR6 Motherboard: MSI PRESTIGE X570 CREATION
AIO: Corsair H150i Pro RAM: Corsair Dominator Platinum RGB 32GB 3600MHz DDR4 Case: Lian Li PC-O11 Dynamic PSU: Corsair RM850x White

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Any other graphics card from Nvidia mostly any GTX version

 

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perfrel_3840.gif

 

you have to watch x16 1.1, so only 3% lost with a 980, basically a 1060, nothing..

 

but you have an old 775 "server" mobo, so you will be bottlenecked by cpu, because you can't oc too.. a Xeon overclocket to 4ghz can handle a 970.

 

without oc a 4x3 ghz xeon/c2q can handle at max 460/270x  950/960/1050ti or non ti .. a 460 2gb it's the best choice, no psu connector and very cheap.

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so Nvidia GTX 460 is the best option rit??

 

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what about GTX 750 or 750 Ti

coz the price of GTX 460 is trice of GTX750 

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but would it work on my specified pc with PCIE gen 1 x16

 

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