?AMD and INTEL yeild slightly different results due to rounding?

[cyphen]

I've heard that there is a possibility of subtle inconsistencies in the results yielded by processors from Intel vs those from AMD in certain applications invovling long floating point manipulations which force rounding.

Does anyone know of the realities here, or know of an article tackling this subject? Could two different processors render slightly different images from the same 3d scene yeilding a slight shift in color/brightness, etc? If so, if different processors are used in rendering a project, a visible flicker could result.

[nukes]

No, Floating point arithmatic is done in the same way, and doesn't round at the CPU level due to it being in binary and there is nothing to round, the number just ends at a predetermined number of places. That's about 28 for a single word not counting exponent - longer if DWORDs are used or other mathmatical jiggery-pokery.
Any differences you see due to rounding are down to the software.