Here is my computer configuration, would it be possible to crunch two Einstein GPU workunits at once per video card with this machine?

CPU's
7/2/2012 9:41:17 AM | | Processor: 16 AuthenticAMD AMD Opteron(tm) Processor 6128 [Family 16 Model 9 Stepping 1]
GPU's
7/2/2012 9:41:17 AM | | NVIDIA GPU 0: GeForce GTX 550 Ti (driver version 301.42, CUDA version 4.20, compute capability 2.1, 1024MB, 953MB available, 691 GFLOPS peak)
7/2/2012 9:41:17 AM | | NVIDIA GPU 1: GeForce GTX 550 Ti (driver version 301.42, CUDA version 4.20, compute capability 2.1, 1024MB, 946MB available, 691 GFLOPS peak)