Mobile GPU

Sparkle GeForce GT640 1024MB DDR3 OC (part number SX640S1024JK) is one of a few Sparkle desktop graphics processing units, based on NVIDIA GeForce GT 640 DDR3. The GPU is built using 28 nm technological process, and employs Kepler architecture. The card has 945 MHz graphics clock frequency. Furthermore, it has 384 CUDA cores, 32 texture units, and 16 ROPs. The GeForce GT640 1024MB DDR3 OC has 1 GB of DDR3 memory. Because the memory runs at 891 MHz, and uses 128 bit bus, the effective memory bandwidth is 28.5 GB/s. The GPU has PCI Express 3.0 interface, and needs 2 slots on the motherboard. The maximum power consumption of this model is 65 Watt, same as on the reference design.

Below you will find more detailed specifications of the graphics card.

Sparkle GeForce GT640 1024MB DDR3 OC GPU specifications