NVIDIA Maxwell GM107 GPU pictured and detailed

Worth a read as their table included doesn't give all the details. (and thus not re-posted here). Sounds like its worth skipping this revision and waiting for the 20nm parts, probably in Q3... 

http://videocardz.com/49517/nvidia-maxwell-gm107-gpu-pictured-detailed

Xbox One gets a CPU speed boost to go with its faster GPU

"We'll announce a launch date shortly," said Mehdi. "We recently just went into full production, so we're now producing en masse Xbox One consoles. We've had real good progress on the system. In fact, we just updated the CPU performance to 1.75 GHz on top of the graphics performance improvement, so the system is really going to shine [and] the games look pretty incredible."

http://arstechnica.com/gaming/2013/09/xbox-one-gets-a-cpu-speed-boost-to-go-with-its-faster-gpu/

Anandtech has detailed info on Nvidia's next mobile graphics family.

http://www.anandtech.com/show/6873/nvidias-geforce-700m-family-full-details-and-specs

Graphics upgrade?

OK so I have some fairly hefty constraints on what I can upgrade my ageing Shuttle PC with.

First and foremost is power constraints with only a 450W PSU in the case ...
Then comes dimensions...With a precarious motherboard power connected in the lower left. I barely got my GTX 275 in there!

http://www.tomshardware.com/reviews/geforce-gtx-275,2266-14.html

http://www.nvidia.co.uk/object/graphics_cards_buy_now_uk.html

I'm thinking this Zotac will fit the bill in terms of size and power draw.

http://www.ebuyer.com/393783-zotac-gtx-660-ti-2gb-gddr5-dual-dvi-hdmi-displayport-pci-e-graphics-zt-60801-10p

A New Dawn for NVIDIA graphics

Hexus: http://hexus.net/tech/news/graphics/42865-a-new-dawn-nvidia-graphics/