For laptops
Compare both processors.
I rather buy a laptop that uses a Broadwell chip that is equal or even
better than Haswell chip for its ability to stay cool,battery life, etc etc.
Yes, I prefer a desktop for gaming anytime, but a lot of games are playable
that are using broadwell chips.
compare both specs
http://ark.intel.com/compare/80343,85212
reviews
http://www.pcworld.com/article/2940489/the-truth-about-intels-broadwell-vs-haswell-cpu.html
I hope you make your decision based on your needs and purpose.