Would the surface pro be fine for editing photos in lightroom?

Ok, so here is how I'm planning on using it and where I got the idea etc:

So first, I'm using an Acer with an AMD e-350 processor and 6gb ram to do photo editing. It takes a little patience because of the rather slow performance. I do photo editing using lightroom 4 and nik softwares (silver efex pro, color efex pro) mostly, but sometimes I might go into cs5 if certain issues which lightroom 4 wouldn't be able to handle presents itself (very rarely). I don't do over-the-top photo manipulation that really requires a GPU such as HDR. I work with RAW files that are about 14mb each.

My workflow is very simple: import to a temporary folder where I view the files that I want to edit. Separate the keepers from the non. Edit a few in lightroom then export the edited and keepers to a separate folder. Lastly, I transfer all the non keepers to an external hard drive. That way, space on my local storage won't ever run out.

I noticed that the surface pro comes equipped with a display port (as opposed to an hdmi port) which raised a question, why choose a display port over an hdmi? Then I started looking at some of the advantages of doing so. With a display port, you can connect  the surface to high resolution monitors and take advantage of the full resolution, specifically up to 2560 x 1440, which is something that I'm currently planning on buying also. Then it hit me, is the surface pro also aimed at folks that can use the surface just like a Wacom tablet (sort of) to edit their photos? Initially, I thought this would've been a brilliant plan. Connect your surface to a higher resolution monitor while using your surface the same way someone would use a Wacom tablet to edit their work. The only factors getting in the way of that were the cpu and ram. Will the intel i5 processor used in the surface be able to handle photo editing software like photoshop and lightroom? Will the surface pro be considered a step up in terms of performance compared to my acer? rough estime, how much of a performance increase should I expect (2x faster etc.)?