Here is the full article
http://www.simhq.com/daily-news/windows-10-future-pc-gaming.html

Of particular interest, I thought, were the following 2 paragraphs

DVR and Game Streaming

Another set of Windows 10 specific gaming upgrades are Game DVR and Game Streaming. A current issue with recording and sharing gaming clips is that great moments almost always happen unexpectedly, and if you’re not recording, the moment unceremoniously comes and goes. Windows 10 plans to address this by giving us the ability to press the Windows Key + G at any time to bring up a menu which allows for the saving of the last 30 seconds of gameplay. Given the rise of communities like Twitch, and the general popularity of game streaming/sharing, this feature is sure to please a large segment of people.

DX12

Finally, Windows 10 brings with it DirectX 12. Your excitement about DX12 will probably be directly proportional to your love of shiny graphics. While I don’t mean to downplay the significance of DX12, until a large enough segment of the population has DX12 enabled hardware PLUS Windows 10 developers will be hesitant to take advantage of the new features it brings to the table. That said, you can guarantee that a few years down the road video games will be looking better than ever, and with the advent of Oculus Rift (and other emerging VR tech), the future is sure to look stunningly beautiful. More importantly, at least for me, are the performance benefits that DX12 promises to bring. With better multi-core/threading support, DX12 hopes to give you as much as a 50% boost to performance. Again, I’m sure that number is a bit overly hopeful, but time will tell.

If you have a 7 series or above Nvidia card or a newer AMD card, you can enable shadowplay on Nvidia or AMD GVR and choose a value of time ( I have AMD, which I know you can set between 3 seconds to 20 minutes, not sure how long you can record with nvidia ) and record your game play anyway.

As both of these use an onboard encoding chip to process the video on the fly, the framerate hit is minimal, a couple of frames a second at most when I have recorded in 1080p. The files are also miniscule filesize wise compared to recording with something like fraps.

I'm pretty sure you can instantly stream it on the fly to twitch or make it instantly compatible for uploading to YouTube too, at least I know the AMD cards can.

If you have an AMD gcn 1.0 or above card, they are already dx12 compliant.... Probably the same for the newer nvidia cards too.