G92b renamed again, this time for notebooks

Tuesday 03rd March 2009, 10:24:00 AM, written by Rys

NVIDIA have taken their 55nm G92b graphics chip and repurposed it for notebook use, creating GeForce GTX 280M and GeForce GTX 260M in the process.  The desktop versions of GTX 280 and GTX 260 both use GT200, a chip too large, hot and power hungry to do business in sane mobile form factors.

The 65nm G92 has already shown up in mobile platforms, in the form of GeForce 9800M GTX.  Compared to the 9800M GTX's mobile configuration of 112 SPs @ ~1250MHz, 256-bit to memory and 51GB/sec of memory bandwidth, GTX 280M is a 128 SP @ 1463MHz part with 60.8GB/sec.

GTX 260 is slightly faster than 9800M GTX, too, despite having the same 112 SPs enabled, by virtue of 1375 MHz hot clock and faster base frequency.

The Tech Report have the full details, including quotes from NVIDIA on the performance of GTX 280M compared to Mobility Radeon HD 4870.

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nvidia ± g92b, mobile, 280m, 260m, gtx

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