Graphics Card Upgrade

No you cant.  The Slim Case will only take low profile Geforce 210 to 610 cards.

No such thing as a low profile GTX960.

Also Requires 300W just for the video card.

(Slim models have 270W or LESS for ALL OF THE Voltages.)

You cant put a 650W or larger power supply in that unit.

Radeon HD6450 would also work with Secure Boot OFF

CSM ON Legacy Option Roms ON.  Has to be Low profile 1 Slot wide and cannot have a fan sticking up.

Thats why Geforce 210 or 610 LOW PROFILE cards are the only ones that PHYSICALLY Fit the case and don't use too much power.

EVGA GeForce GT 610  02G-P3-2619-KR

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130813

Wait never mind ignore that second question. But are you saying that the reason I can't use a gtx 730 I'd because it won't fit?

low-profile vs regular profile

Gtx 960 not gtx 730

Wait never mind ignore that second question. But are you saying that the reason I can't use a gtx 730 I'd because it won't fit?

But my desktop says it has a gt 730 on it

GT730 OEM LOW PROFILE DELL Card.

You cant use a full size card.  Dell modified the amount of ram and clock and other items to get to a specific power profile.

GTX 9XX Anything is NEVER EVER going to work or physically fit.

Okay thanjs.

So could I upgrade it to this card since its a low profile card.

www.newegg.com/.../Product.aspx

So would I be able to upgrade to this graphics card since its a low profile card.

www.newegg.com/.../Product.aspx

I know I already asked this question before, but just to be sure, I was wondering if I could upgrade my Dell Inspiron 3650 Gamer Edition's graphics card to something like this

http://www.newegg.com/global/uk/Product/Product.aspx?It...

and if I can't could you tell me why? Also if you could tell me any other graphics cards that I can upgrade to.

I was able to put an ASUS GeForce GTX 950 MINI-GTX950-2G 2GB 128-Bit GDDR5 PCI Express 3.0 HDCP Ready Video Card into my Inspiron 3650.  

http://www.newegg.com/Product/Product.aspx?Item=N82E16814126100

I'd wondered about the low-profile comments, because, just looking at a photo of the machine, it seems like it'd take regular-profile video cards (it's not narrow the way the 3647 machines are), and your GTX 950 is even a double-height one...

How much longer of a video card than yours would fit?  Or is the one you purchased pushing the limits of space available?

It is narrow because its not a full size tower and its not a full size case.  MINI ITX cards fit but require a new power supply.  Low profile cards do not use additional power aka 75W is fine but they cant be too long. 12 inch long cards will NOT physically fit into the case.  even 10 inch long cards are TOO LONG.

It is possible to hack it working by removing the power supply entirely and using adapter and placing power supply OUTSIDE the case.

Dual slot SHORT cards(GTX960/970) are fine but I do not think 12 inch long cards fit.

A MODDIY adapter is needed to convert 24 pin to 8 pin.

http://www.moddiy.com/products/Dell-Inspiron-3650-PSU-Main-Power-24%252dPin-to-8%252dPin-Adapter-Cable-%2830cm%29.html

There was also a user that Got an RX460 working without needing to MOD the system.

The card in the video is Gigabyte
https://www.amazon.com/Gigabyte-Radeon-Windforce-Graphics-GV-RX460WF2OC-4GD/dp/B01K1JVCRE

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150780