On 05/18/2011 05:14 AM, Fred Smith wrote:
Hi,
The only problem that I personally heard about is about the slow transfer speed
to/from GPU memory on Fermi cards. DMA transfers are said to be slower than on
GTX 2xx hardware. I haven't seen anything related to computing.
I think it's specifically GPU->host memory transfers that are slow. The
other direction is OK, as is the computation speed. The thread on the
OpenGL forums has the details, and someone posted a small program that
does timing tests and illustrates the issue pretty well.
http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=284065&page=1
--"J"
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