4GB DDR3 vs. 1GB GDDR5 - Whats better for my use?

[yoosuf290]

EVGA GeForce GT 740 Superclocked Single Slot 4GB 128-Bit DDR3
Vs.
PowerColor AXR7 250X 1GBD5-HE Radeon R7 250X 1GB 128-Bit GDDR5

There are very few good cards that fits the Dell Optiplex 755 Mini Tower case, which is why I'm stuck with those two.

Quick computer specs:
Intel Core2Quad Q6700 2.66GHz
8GB DDR2 RAM
Windows 8.1 (64 Bit)
XFX 550W Power Supply
'Sh**ty' Dell BTX Case
Two monitors (One 1080p HDMI, One VGA)

What I use the computer for
- NOT for gaming (if I do, probably old games or new games in mid-low resolution)
- Adobe Photoshop
- Adobe Flash CC
- Toon Boom
- Blender, CAD, Other 3D design programs
- Adobe Premiere, Sony Vegas 12, Other video editing programs
- Web Designing
- Programming

So which graphics card is better for my use? I'm aware of the fact that GDDR5 is simply faster than DDR3 cards. But for my use, is that necessary? If so, how?
And how does having a higher vRAM would be an advantage in my case?
Help me make a decision guys! 😀

Thanks.

 

[GRUxTSAR]

1.28gb DDR3 vs 1gb GDDR5

 

[TopLuca]

Here's tomshardware about this specific matter * Budget gaming GPUs with all the benchmarks: http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107-2.html ( That's really gaming related )

If you really despise reading then the conclusion is that in the Nvidia side of things nothing less than a GTX 750 is worthwhile and the 250X emerges victorious in that matter , its a great entry level HD Gaming graphics card and also notably faster in Rendering and other stuff because of the GDDR5 Vs DDR3 .

The latency is significantly less on the GDDR5 and the response time is much better furthermore the bandwidth is much higher which is required for your work.