Guild Wars 2

… to make a Desktop rig using $800 that requires an Nvidia card, a Solid State Drive and other parts that runs GW2 at max settings without problems?

I would say so.

I did it three years ago, and I suspect prices are a tad lower, now. The trick is finding the “point of diminishing returns”, and getting parts that are just below that point. I’m pretty sure that still means the top i5, a GTX 960, 8G of RAM, a Bronze power supply, probably the Samsung 850 EVO…. if I were to splurge, it would be on a GTX 970. I haven’t been following boards, lately, but something in the middle of the price range is usually more then enough. When picking brands, focus on reliability over performance, as paperweights and doorstops don’t run any games well.

One important detail you missed out is what resolution you want to play at… 1080p may be possible, any higher is unlikely inside that budget.

You can save money by getting AMD CPU and overclocking it – their top range FX-series is equivalent to a lower tier i5. And many micro-ATX boards are cheaper than the ATX equivalents, and you’ll mainly be sacrificing the extra PCIe slots.

And is a solid state drive necessary? Don’t get me wrong… it’s a great convenience. It will decrease your load times, but do nothing for your FPS or quality settings. Also consider it’s capacity… Windows 10 64-bit is 20Gb, GW2 is 25Gb, plus whatever else you intend to install onto it, those things fill up quicker than you imagine… 3 years ago I had a 240Gb one, and last year I had to upgrade to a 1Tb even though I put my videos, music and photos on a regular HDD.

(Edited because S-S-D = kitten in Anet’s eyes)