Crap, I made two mistakes.
1. It appears that there's 2 different GPUs having the same Radeon R5 230 name.
One is a rebadged 6450, while there's a newer one based on the GCN architecture but only has 80 shaders.
2. I was looking at the R5 M230 (mobile GPU) <click here for link>
At this stage, your best bet is a Geforce GT 730 64-bit
. Take note of "64-bit", because it denotes a newer GPU compared to the earlier 128-bit version. <click here for link>
As much as possible, get the GT 730 64-bit with GDDR5
video RAM, because the faster GDDR5 has a performance boost over one with DDR3 video RAM.
This situation is similar to AMD APUs where having faster RAM (DDR3-1866 or 2133) will result in higher FPS compared to DDR-1333.
However, the GT 730 has a higher TDP (23-25 watts) so the electric bill might increase a bit when gaming for long hours, but for light tasks, it shouldn't be an issue.
-- edited by awakeruze on Nov 01 2014, 01:27 AM