Thank you for contacting the Intel Communities.
After looking for the model of your computer, I was able to find some laptops.
If this is the case, my recommendation would be to get the compatible components of your device with the manufacturer, in this case the support would be provided by Support | Dell US
If it is a desktop computer, regarding the compatibility of the CPU, GPU, and RAM would also be provided by the manufacturer of the device.
This would be because it depends on the components that you have in the build to see which would be your options for upgrade and the upgrade for laptops is kind of limited, so you would be receiving accurate information from the manufacturer of the website indeed.
About the upgrade of the graphics card, it depends on the Motherboard that you have, also the power supply that you have, which would have to meet the needs in terms of power from your computer.