Under the bonnet is a six teraflop graphics processor running at 1172 Mhz, 12GB of GDDR5 memory and a 2.3 Ghz custom central processing unit.
Games that provide 4K graphics will be noted by the "Xbox One Enhanced" branding, he said. 4K games will also look better on regular 1080p TVs, says Microsoft, thanks to its super-sampling.
Everyone waited with bated breath as head of Xbox Phil Spencer came on stage for seemingly one last time during the Xbox E3 briefing to announce the price of the Xbox One X. But Spencer also said that over 30 game maker partners were already planning to update existing games to 4K for the Xbox One X-and for free-in the months ahead. Xbox One X or PS4 Pro. The One X is a serious step up from the existing Xbox One S console, offering incredible performance for realistic Ultra HD gaming. The Microsoft Xbox One X offers a memory bandwidth of 326 GB/s for faster loading and the console comes with a 1TB HDD internal storage.
Native 4K rendering is just one aspect.
Hamilton wins F1 Canadian GP, picks up points on Vettel
But the 18-year-old showed his skill to become the first Canadian not named Villeneuve to score points in a Formula One race. He was up to seventh when he made another pit in Lap 50 to prepare for a final charge.
With a minimalist design, the "smallest Xbox, ever" is much more powerful than the PlayStation 4 Pro that can run some games at 4K/60 frames per second.
Spatial surround sound, will meanwhile, help in giving 7.1 setups a boost (it will also be unlockable on the Xbox One).
The console, because it's so powerful, also features a one-of-its-kind vapor-chamber cooling technology used on high-end PC gaming cards like the Nvidia GTX 1080.
Fellow gaming giants Nintendo and Sony are among those who are also due to unveil a host of new games during E3, while the next game in the Call Of Duty series is also expected to be demoed for the first time. There's HDMI but no Kinect port. Games confirmed as being given support for the Xbox One X's improved hardware include Gears of War 4, Forza Horizon 3, Resident Evil 7, Final Fantasy 15, Tom Clancy's Ghost Recon Wildlands, and - surprisingly - Minecraft.
Microsoft, at its E3 keynote, also announced 42 new games for the Xbox One family of consoles - the Xbox One S and the Xbox One X - with 20 plus being Xbox-exclusive titles.