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Xbox One "does not have to be always connected, but Xbox One does require a connection to the Internet."
The console's CPU is built into two modules. One module contains four x64 cores, each operating a single thread at 1.6 GHz. The cores each have a 32KB instruction cache and a 32 KB data cache, and the 4 cores in each build share a 2MB level 2 caches. As a sum the builds have 8 hardware threads and 4 MB of L2. The CPU cores are clocked at running 1.6 GHz; this is half the clock rate of the Xbox 360, which might allude that the Xbox 360’s cores could outperform the new console. But this is not true do to the fact that the new console will have out of order execution between cores. This means that the CPU can re-order the micro-operations this improves performance by allowing the console to Start loads and stores as easy as possible to avoid stalls. It allows for execution of instructions in data-dependency order. Furthermore, fetching instructions from branch destination as soon as the branch address is resolved
What follows naturally from this is that each disc would have to be tied to a unique Xbox Live account, else you could take a single disc and pass it between everyone you know and copy the game over and over. Since this is clearly not going to happen, each disc must then only install for a single owner.
Microsoft did say that if a disc was used with a second account, that owner would be given the option to pay a fee and install the game from the disc, which would then mean that the new account would also own the game and could play it without the disc.
But what if a second person simply wanted to put the disc in and play the game without installing – and without paying extra? In other words, what happens to our traditional concept of a “used game”? This is a question for which Microsoft did not yet have an answer, and is surely something that game buyers (as well as renters and lenders) will want to know.
And what of the persistent rumors that Xbox One games will be “always online” – that is, that single-player games would require a constant online connection to function? As it turns out, those rumors were not unfounded, but the reality is not so draconian. Xbox One will give game developers the ability to create games that use Microsoft’s Azure cloud computing service, which means that they might be able to offload certain computing tasks to the cloud rather than process them on the Xbox One hardware itself. This would necessitate the game requiring a connection.
Are developers forced to create games that have these online features, and are thus not playable offline? They are not, Xbox exec Whitten said to Wired — but “I hope they do.” So the always-online future may come in incremental steps.


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