The HP wins on GPU and CPU but loses because of the company. HP did not honor the warranty on a 3 month old new laptop and 6 months of calls and more finally got the message this company is not what it used to be. For that I can't recommend that maker.

No to the bottleneck issue. It's not there. Here's a quote from Toms:
"Our tests demonstrate fairly little difference between a $225 LGA 1155 Core i5-2500K and a $1000 LGA 2011 Core i7-3960X, even when three-way graphics card configurations are involved. It turns out that memory bandwidth and PCIe throughput don't hold back the performance of existing Sandy Bridge-based machines. "
http://www.tomshardware.com/reviews/gaming-cpu-review-overclock,3106-4.html
Bob