rx 6400 on 240 w psu?

[yobamas]

i have a dell optiplex 3050 sff i5 6500 180 w psu. I want to put a gpu to play games. I found that the rx 6400 is a good choice but i dont have enough watts. So i want to buy a dell psu 240 w and i dont know if it will work or not. please help...

[Zando_]

Should do. Is there a reason the 180W isn't already enough though? Those old i5s don't really break 60W IIRC, the most a PCIe slot powered GPU can pull is 75W (as that is the PCIe power delivery limit) so that's 135W, your HDDs and fans should not pull enough to hit the 180W limit. Just checked, AMD says the typical board power for the 6400 is only 53W too, so it draws even less than that. 

[mariushm]

Ignore the  wattage recommendations from companies like AMD and nVidia, because that is not the minimum, they have to say a value which guarantees it will work with random computers (AMD and nVidia have no way of knowing what processor and how many hard drives Joe from somewhere has)

 

The card itself will consume around 50 watts when gaming. The power supply of your computer can give 180 watts to components - the i5 6500 may consume 50-60 watts and the motherboard may consume around 10 watts - so all these added up don't cross the 180 watts amount.

[Middcore]

The wattage should not be an issue. However, you should be aware that in that system, the card will only run at PCIe 3.0 x8, which can nerfs performance. In some games it won't be noticeable but in others it will reduce the frame rate by 20% or more compared to running the card in a system which supports PCIe 4.0. https://www.techpowerup.com/review/amd-radeon-rx-6400-pci-express-30-scaling/28.html

 

If you can find a GTX 1650 that will fit inside the Optiplex chassis, it would potentially be a better buy. 

[yobamas]

1 minute ago, Middcore said:

The wattage should not be an issue. However, you should be aware that in that system, the card will only run at PCIe 3.0 x8, which can nerfs performance. In some games it won't be noticeable but in others it will reduce the frame rate by 20% or more compared to running the card in a system which supports PCIe 4.0. https://www.techpowerup.com/review/amd-radeon-rx-6400-pci-express-30-scaling/28.html

 

If you can find a GTX 1650 that will fit inside the Optiplex chassis, it would potentially be a better buy. 

thank you. i wanted to put 1650 in there too but the dell can only fit a single slot card and the only gtx 1650 i could find was 2 slot

[yobamas]

24 minutes ago, mariushm said:

Ignore the  wattage recommendations from companies like AMD and nVidia, because that is not the minimum, they have to say a value which guarantees it will work with random computers (AMD and nVidia have no way of knowing what processor and how many hard drives Joe from somewhere has)

 

The card itself will consume around 50 watts when gaming. The power supply of your computer can give 180 watts to components - the i5 6500 may consume 50-60 watts and the motherboard may consume around 10 watts - so all these added up don't cross the 180 watts amount.

Thank you so much. You were very helpful  thank you.

[yobamas]

39 minutes ago, Zando_ said:

Should do. Is there a reason the 180W isn't already enough though? Those old i5s don't really break 60W IIRC, the most a PCIe slot powered GPU can pull is 75W (as that is the PCIe power delivery limit) so that's 135W, your HDDs and fans should not pull enough to hit the 180W limit. Just checked, AMD says the typical board power for the 6400 is only 53W too, so it draws even less than that. 

thank  you so much . I appreciate the time you took to help me thank you