Working in Molecular dynamics simulations with Gromacs.Looking for suitable cards
I need your suggestion in the following options
- Tesla K80 single Card
2.3 x GeForce GTX 980Ti card connect with SLI Bridge
Which option I should select for FAST results with more benefit
Note that the SLI bridge is a low-bandwidth interface and only needed for graphics, not when using the GPU as a computational accelerator.
Have you asked for hardware recommendations on the Gromacs mailing list (http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List)?
Indeed, the SLI bridge doesn’t matter.
@NikhilMaroli: have you tried to google around (http://bfy.tw/6VpM ;)?
In short: Get GeForce. The GROMACS kernels will run around 1.5x faster on a 980Ti than on a K80 chip (half the card) and the transfers will be much more efficient too – you’ll use 16 lanes per GPU rather than per dual-chip board.
I’ll follo up with more on the gmx-users list if there’s interest.
PS: unless you have some insanely good price on the 980Ti, I’d go with the 1070s. Those will beat the 980Ti-s and consume far less power.