Nvidia Tesla GPUs To Accelerate VASP Material Simulation Application

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Anyone also reads this and thinks "I think this is amazing but Im not sure since Im just a gamer and what Id really like to ask is if I can add that to my gaming rig to get a boost in FPS" ?
I know, every time I see this I think 'where do I buy these for my rig?'
 
Any number of commercial suppliers sell the K80's, I managed to get a pretty good deal on mine at just a little north of 9K a pop. Much better than the advertised 12K they average for in Canada.
 
"2.5 to 4" times faster? I would have expected more performance gains from using a GPGPU device vs a CPU.
Edit: apparently the CPU they were comparing this to is a 12 core, E5-2697v2, so that is a bit better I guess. I'm still looking forward to a larger performance gain through optimizations to the (CUDA?) kernel.
 
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