[citation][nom]__-_-_-__[/nom]This is great. I've alredy said months ago a product like this would appear. But this is NOT modular or upgradable. Sony (and all notebook manufacturers) prefers to sell new notebooks rather then just selling upgrades, like mxm graphic cards.This is a solution for increased mobility with improved desktop performance. Yyou cannot upgrade the gpu inside the box. Therefore you will have to buy another notebook to upgrade.Though this is an improvement with THUNDERBOLT (Light Peak is the technology codename). But the bottleneck still exists. And don't tell me there's no technology. External pci-e standard have been around for many years. No one implements it.Thunderbolt - 1.25 GB/s x 2 External PCI Express x16 - 4 GB/sPCI Express 3.0 - 15.8 GB/s[/citation]
so you know, current pci-e isnt even saturated, in fact there is negligible difference between 4x and 16x, which is about 8x on the original which would be 2 GB/s get multiple light peak cables (2-4) and there you go.
the gpu isnt all about pci-e bandwidth, its also about processing what comes into it, which it does really fast, so even if the bandwidth is slower, you still benefit from newer cards.