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I didn't believe that shared memory is very fast. I wrote version app which using shared memory. On my card it's only 16kb for every block of threads. It's very small but i tried use that for encrypt/decrypt. Version without shared memory worked 76 seconds but with shared memory only 50 seconds. It's increase about 35% performance. I'll trying increase performance more. Edited at 2011-02-24: My last version of nDES CUDA works about 59% using SHARED MEMORY on my 8600m gt. It's very good for me but i'll try increase it more :)

Hi, Actual build of Windows 8 is: 6.2.7947.0.winmain_win8m2_escrow.110218-1608. As you see is from 2011-02-18. I think that beta version will be release near. At 2011-02-28 MS want start programming M3 build. It's last version before beta. Dell said that at Q1 2012 they'll release Tablet with preinstalled Windows 8.