do you need the extra space? if Yes, then u have your answer...
elementary dear Watson!
I don't need the extra space. But I don't need the extra write speed either. I just want to know you guys' opinions on what you guys would do. 250 gb is plenty space. but if there's absolutely no disadvantage of going regular 840 other than write speed. I will definitely go for it.
Personally I think the TLC was probably pretty thoroughly vetted in Samsung's lab, But No one can give a definitive answer as it has not been out long enough.
Performance wise; benchmark would probably show a big diff, however in real life there would only be a small diff. I have the 256 gig 840 pro in laptop (replaced a 256 gig Crucial M4 and a 256 gig 830 (replaced a 128 gig 830) in i5-2500k Desktop - I saw NO diff in performance. But in benchmark there was a BIG diff in overall AS SSD score between 840 Pro and Crucial M4.
256 gig SSD really provides about 191 Gigs usable space. The 500 equates to about 373 gigs space. Based on -7% due to manuf counting and real formatted size and - 20% which is the recommended Free space to allow for optimum performance.
You indicated the 256 was enough space, that's today, Next year - who knows.
If they were the same size, I would go the 840 Pro: However; an extra 162 gig for 50 bucks is awful tempting - So I'll have to say I'd go with the 500 gig 840.