i can admit to Scott' statement that he does know what he's talking about and not just making a bold statement.
His job is indeed making pro-audio workstations for years.http://www.adkproaudio.com/
Take a peek in the client list and then you can see that this a pro level advise.
But that statement on the steinberg site is there for some years now, and you're not the first who makes this referal to the steinberg site. That can explain the short reply.
Sometimes we can grow a big beard before they update/correct anything on their site, certainly when it's in their advisory-database.
Personally i am waiting for months now to see if someday, sometime, they will actually remake their download link to Halion 5 in the location where it should be. (on the download page) But i'm still waiting.
So back on topic: i would go for the I7.
Cubase 8.x, vienna ensemble pro 5,
Master:laptop Clevo, W170, i7 2760Qm, 16 gig, 2xSSD samsung 840pro/evo, +touch screen
Slave: desktop: given away as Christmas present for nephew, still need to replace it
Sound: Motu Ultralite MKIII (usb), Focusrite 18i20.
control: Synergy, novation zero SL
vsti: Steinberg, East West, Vienna, Native Instruments, Spectrasonics and a lot of others