|
pezus said: Microsoft is intending to target complex ray tracing lighting technology. Discussing the Oban and CPU setup, the insider claims "It's 384bit and has 550gb/s it was designed to enhance the system for ray tracing and other memory heavy rendering engines. |
The credibility of the specs is out the window based on these 2 statements.
1) Ray Tracing technology is impossible to do in real time in the context of games, on any current high-end GPU, including a $1000 GTX690. Therefore, this alone means the specs are completely bogus and the article is made up. Not only that but the fundamental architecture of all modern GPUs is designed to perform Rasterization well. They simply do not have anywhere near the required power necessary to perform Real-Time Ray Tracing (as in game design). It's almost laughable someone would even attempt to discuss Ray Tracing on Xbox 720 when GTX690 alone has 5.6 Tflops of floating point operations and it cannot do it.
2) To get 550 GB/sec memory bandwidth over 384-bit memory bus requires GDDR5 speed of 11,458 mhz. (11458 x 384-bit / 8 = 550GB/sec). There is no such thing as GDDR5 that runs faster than 8000mhz. GDDR6 is not due until 2014 (http://vr-zone.com/articles/gddr6-memory-coming-in-2014/16359.html). 4GB GDDR5 would at least be feasible, but 8GB of GDDR5 sounds prohibitively expensive.
Even if they are discussing the speed with which the GPU and CPU communicate with each other, 550GB/sec is still meaningless because right now the CPU and the GPU communicate with each other over the PCI Express 3.0 (32GB/sec) bus and it's "overkill" for $1000 GPUs like the GTX690.
http://www.techpowerup.com/reviews/Intel/Ivy_Bridge_PCI-Express_Scaling/23.html
It's impossible to take anything else seriously when these 2 statements are listed in the source.
|
pezus said: "Every multiplatform or third party game will look better on Xbox Next," claims the insider, adding that even first party games on the Xbox 720 "will look better then other company's offerings." |
That's a fanboy's wet dream and nothing more. Even if 1 console is more powerful than the other, not all developers will have the money to take advantage of its faster hardware. Some games will just be 99% identical ports to cut down on development costs.
