Notebook Performance Comparison for presentations with embedded video

Hi Experts,
I need some advice. We are looking to buy some refurbished notebooks. We will be using these notebooks to run Powerpoint presentations for the events that we do so they will need to be stable and powerful enough to deal with embedded hi-res videos etc. The two options of laptops we have:
Option 1: Proline Professional W540SU Notebook, 14" HD Screen, Core i3-4000M CPU, 4GB DDR3 RAM, 500GB SATA HDD, Intel HD Graphics 4600
Option 2: Dell Latitude E6420, 14", Core i5-2540M CPU,  4GB DDR3 RAM, 500GB SATA HDD, Intel HD Graphics 3000

Which would be the better option for our requirements? I3 with the better graphics or I5 with older HD graphics? 2nd option is about R 600 more which is about $48. I know these are much older generation systems but if they will work fine then that is all we need. I dont want an issue when we want to play 1080p video within our powerpoint presentations or outside of powerpoint. it has to run smooth and no lag

Reinert WentzelAsked:
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Rob KnightConsultantCommented:

it depends what codec is used in the videos and whether acceleration is inbuilt into the display adapter or done using the CPU.

I would suggest the later video card would support newer video codecs but would need further information.
Rob KnightConsultantCommented:
Clearly the i5 is faster but not by as much as might be thought - it's main benefit is boosting which the i3 does not support.

However, I doubt that Hi Res videos will be CPU bound unless the CPUis doing the deciding due to an unsupported codec.

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