I was wondering, what extensions are supported by the GPU in AMD Trinity APU, which has been reviewed today. Does it support cl_khr_fp64 and if so, what is the ratio of SP to DP performance? And does it support the zero-copy extensions under Windows and Linux?
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MicahVillmow wrote:
Trinity is using the Cayman core, so 1:4.
Sorry that's not correct. Trinity has 1:16 rate doubles compared to single precision.
yes it support fp64 http://images.anandtech.com/reviews/mobile/Trinity-CLinfo.zip
Yeah I read that too. I am the user who posted the question there
Now, the question is, what is the DP:SP ratio? 1:4 as in Cayman or lower?
Trinity is using the Cayman core, so 1:4.
[Edit] Sorry I got this one wrong, its a derived cayman core, with 1:16 ratio as JeffG pointed out below.
Thats awesome
MicahVillmow wrote:
Trinity is using the Cayman core, so 1:4.
Sorry that's not correct. Trinity has 1:16 rate doubles compared to single precision.
Ok I see. Thanks for the clarification. Somewhat disappointment, but still good for testing and dev purposes I suppose.