However, later on engineers designed a new PCB for the GTX 260 to reduce manufacturing costs. The fact is, the first GTX 260 were based on the GTX 280 design (512-bit), only the number of memory chips we decreased from 16 to 14, thus cutting the bus down to 448-bit and reducing memory volume to 896 MB. Pay attention to the comparison with the old GTX 260 (it's well posed, as both GTX 260 and GTX 275 have a 448-bit memory bus). Reference card NVIDIA GeForce GTX 260 (old version)Ĭomparison with the reference design, back view These memory chips are designed for the maximum frequency of 1250 (2500) MHz.Ĭomparison with the reference design, front view Memory frequencies (physical (effective)): 1260 (2520) MHz (nominal - 1130 (2260) MHz)Įach graphics card has 896 MB of GDDR3 SDRAM allocated in 14 Hynix memory chips on the front side of the PCB.
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