Integrated vs Dedicatated graphics card..?

[Nicholas Nicolaou]

right now I have intel hd 4400, i'm looking to get gtx 750..

but my question is, will i feel a difference in performance? I know it's less pressure on the memory ram but is that it? Will I benefit from this upgrade such as normal daily task browsing, will pages load faster etc?

my second question is, can I upgrade a 4th gen i3 to a 4th gen i5?

 

[Brunostako]

1st. Performance difference between HD Graphics 4400 (using system's DDR3 memory) and a GTX 750 (using GDDR5)? Not much, the GTX 750 is about ... 600% faster.

2nd. Yes, you can upgrade from a 4th gen i3 to a 4th gen i5.

Go with the GTX 750, never use the iGPU if you can choose a good discrete GPU.

GPU pressure? iGPUs use the system main memory (RAM) as its VRAM and it only uses a dedicated amount. But it doesn't do any "pressure" to the system.

 

[chenw]

The only 'pressure' you would find with adding a discrete GPU is your power supply, but if you get a budget low powered card like say 750 or 750ti, it should be able to handle it fine, as long as your PSU isn't both a low wattage PSU and a bad quality one.

Discrete GPU have their own dedicated memory and dynamically use system ram ONLY when its own dedicated memory has filled up (exceptions do apply, but they are rare), integrated GPU uses system RAM, so under most cases, you would see more RAM freed up with a discrete GPU.