Turkish website Donanimhaber report that NVIDIA’s next release, GeForce GTS 450, will now release on September 13th, pushed back two weeks from initial expectations of late-August. In addition, the early clock speed estimates run at 789 MHz core, 3760 MHz for 1GB GDDR5 memory over a 128-bit memory bus.

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Turkish website Donanimhaber report that NVIDIA’s next release, GeForce GTS 450, will now release on September 13th, pushed back two weeks from initial expectations of late-August. In addition, the early clock speed estimates run at 789 MHz core, 3760 MHz for 1GB GDDR5 memory over a 128-bit memory bus.

Further information regarding functional units remains unclear. Most rumours suggest between 192 and 256 SP. At 789 MHz, it will also be the highest clocked GeForce card ever, surpassing the card it is replacing, the GTS 250 (which itself is a rebranded 9800 GTX+), finally marking the end of the highly successful G80 line of GPUs first introduced nearly four years ago!

Interestingly, the recently leaked claimed PCB designs suggest a 192-bit memory interface. The GTS 450′s competitor, the HD 5770, runs 4800 MHz memory over 128-bit, and is thought to be short on memory bandwidth itself. It would thus make sense for NVIDIA to offer a 192-bit bus. That said, the GTX 460 seems to do well against the HD 5830, despite lesser memory bandwidth. It is also possible they there will be two GF106 variants – one with 192-bit, the other with 128-bit, similar to the GF104 series.

The GTS 450 releases exactly 11 months after HD 5770′s release (13th October 2009). With a Southern Islands derivative expected some time in Q4 2010, NVIDIA simply cannot afford any more details for a card that is already almost one generation late.

Reference: Donanimhaber