XBOX 360s has merged CPU GPU was Re: Detect If OpenGL Is Working?



Right now it looks like the GPU is only going to last a couple of more
years. It is cheaper, and faster, to put the SIMD vector processing
and the MIMD pixel shader arrays next to the x86_64 cores and the
level 0 cache. The frame buffer will disappear into the cache hardware

?Hmm - I don’t think it is cheaper and definitely not faster, or it
?would already be done this way.

Just saw this on /.

The CPU and GPU of the newest version of the XBox are on the same
chip. The change reduces power consumption by 30% to 40%. It appears
to be a 40 nanometer design.

Bob PendletonOn Sun, Jun 13, 2010 at 9:09 PM, Jon Trulson wrote:

On Sun, 13 Jun 2010, Bob Pendleton wrote:

On Fri, Jun 11, 2010 at 5:43 PM, JeZ-l-Lee wrote:

?GPU operations are optimized for graphics (obviously), I really do
?not see dedicated GPU hardware disappearing in the near future at
?all. ?Maybe when a general purpose CPU can do sw (mesa) OpenGL as
?fast as dedicated GPU hardware can do it today… But that will
?require more than just a faster CPU.

?And - currently at least, no main-memory based framebuffer can even
?come close to competing with a dedicated FB in terms of bandwidth
?and performance. ?I do not see that changing near-term either.

?I know Intel keeps pushing this mantra (cause, they kinda have to
?:), but so far they are nowhere near competitive, performance-wise
?with even outdated offerings from Nvidia/ATI-AMD (like the ‘ancient’
?GeForce GT7900 I’m typing this on right now).

?They are cheaper though :wink:


The point? The question to ask is “is it fast enough for my

?This is definitely true.

?I remember when the company I used to work for (Xi Graphics) was
?participating in the OpenGL ARB mailing lists. ?There was much
?discussion about providing something like an ‘Is this implementation
?HW accelerated?’ function.

?It never went anywhere, since no one could decide what the minimum
?requirements should be to call yourself ‘accelerated’.

?For example, some hardware could do anti-aliased line drawing in HW,
?but only for line widths of 1.0.

?Some hardware could accelerate certain operations, but only if certain
?other features where not being used.

?You begin to see the problem :slight_smile:

?As Bob says: “is it fast enough for my application”.

I’m kind of hoping that OpenGL and DirectX will just sort of fade out
in the next 5 to 10 years as we no longer need a way to communicate
the a graphics systems that is out side of the CPU.

?I don’t see that happening. ?The specialized hardware/software
?infrastructure neccessary to do HW accelerated 3D rendering is
?nothing like what is needed for a DB or word processing application.
?I believe specialized hardware for graphics will be a requirement
?for some time yet.

guess OpenGL
will still be handy for networked graphics? Maybe?

?Maybe you are thinking of GLX (X11’s OpenGL extension)? ?Yes, that is
?handy sometimes :slight_smile: ?But doing OpenGL does not require GLX…


Jon Trulson ? ? ? ? ? ? ? ? ? ? ?| A828 C19D A087 F20B DFED
mailto:jon at ? ? ? ? ? | 67C9 6F32 31AB E647 B345

Ambien Walrus needs more Robot.

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