It looks like Google fails to correctly decipher Intel Isis (probably because it is still new). If you were searching Intel Isis, OP probably meant Intel Iris[0]. Intel Iris and Intel Iris Pro were introduced with Haswell processors.
> Intel Iris Graphics and Intel Iris Pro Graphics are new brands for Intel's high-end integrated graphics introduced with some variants of its Haswell processors. They utilize the same basic blocks as the HD series, but have a higher maximum frequency, and additional eDRAM cache for the "Pro" series.
The Iris Pro with eDRAM (Crystalwell?) is an interesting offer from Intel. If I was in the market for a new laptop this year, I'd be keeping an eye out for those Haswell refresh or maybe a Broadwell based laptops, similar to the newest Macbook Pro.
Unfortunately the Iris Pro comes with a much higher TDP, which means significantly shorter battery life and higher heat dissipation needs than all the other Haswell i5/i7 parts (47W vs 15 or 28). You won't find it in an ultrabook due to the heat, and you won't get the battery life benefits Haswell brought over previous architectures. The non-Pro Iris part is the better compromise IMO; you can find it in the thin-and-light form factor, it's much lower power so you can still get 6-8 hours of battery life, and it's still fast enough for most new games.
Very intriguing laptop. What bugs me is that I cannot find a screenshot of their keyboard layout on their website. I had to look for a review with a screenshot of the keyboard to see the layout. As someone who types primarily with the right shift key, I cannot use a laptop if the right shift key is cut short which is the majority of them (including this System76 model).
> Intel Iris Graphics and Intel Iris Pro Graphics are new brands for Intel's high-end integrated graphics introduced with some variants of its Haswell processors. They utilize the same basic blocks as the HD series, but have a higher maximum frequency, and additional eDRAM cache for the "Pro" series.
[0] https://en.wikipedia.org/wiki/Intel_HD_and_Iris_Graphics