A few months after the introduction of the K-computer a commercial version was presented on the market. The structure of the system was the same as that of the K-computer but the processor was slightly improved (see the SPARC processor). The 16-core processor runs at 1.848 GHz which amounts to a peak performance of 236.5 Gflop/s because every core delivers 8 floating-point results/cycle.
The FX10 has the same interconnect as the K-computer: a 6-D torus. Apart from a very high bandwidth of 5 GB/s in each direction, the extra dimensions (the user experiences only 3 of them) allow for a high resiliency for failures and an easy way of rerouting in case of contention.
The system can be made very large: a maximum of 98,304 nodes can be configured for a peak performance of 23.2 Pflop/s. Like in the Cray and IBM BlueGene systems the compute nodes are not bothered by system tasks. These tasks are diverted to dedicated I/O nodes. This greatly reduces the OS-jitter in the system, ultimately improving application scalability for large amount of nodes.
Where most HPC vendors (except IBM) offer Lustre as their HPC file system, Fujitsu has its own brand: FEFS. Fujitsu also has its own suite of compilers, a scientific library, MPI, OpenMP, and a proprietary Fortran extension XPFortran that, like OpenMP is directive-based. In addition, Fujitsu has its own tuner/debugger to help in the development of large-scale applications.Measured Performances
When one would regard the K-computer as an instantiation of an FX10 system in  the K-computer enters with a speed of 10.51 Pflop/s in solving a linear system of unknown size with the very high efficiency of 93.1%