A forum member at Chiphell has leaked several pictures of  the GeForce GTX 580 reference board, including detailed pictures of the naked heatsink. The blurry pictures of the GTX 580 intact are identical to yesterday’s leak.

6 NVIDIA GeForce GTX 580 Heatsink Pictures

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A forum member at Chiphell has leaked several pictures of  the GeForce
GTX 580 reference board, including detailed pictures of the naked
heatsink. The blurry pictures of the GTX 580 intact are identical to yesterday’s leak.

2 NVIDIA GeForce GTX 580 Heatsink Pictures

3 NVIDIA GeForce GTX 580 Heatsink Pictures

The reverse side of the PCB is also pictured now, which
reveals 8-pin+6-pin power connectors, 2 SLI connectors for 4-way SLI,
and 12 memory chips – suggesting a 384-bit and 1.5 GB memory – all as
expected. There’s no longer holes in the PCB for the fan, but a pretty
large bracket is maintained, which suggests a huge chip roughly the size
of GF100.

6 NVIDIA GeForce GTX 580 Heatsink Pictures

Under the shroud lies a hefty heatsink with no less than 5
copper heatpipes. While the GTX 480 heatsink also features 5 heatpipes,
it is slightly shorter in length. Thus, the extra length allows the GTX
580 heatpipes to be spread, and there are no heatpipes sticking out of
the shroud, as in the GTX 480. The platform of the heatsink also stays
beneath the shroud. The fan seems to be improved as well, with slightly
larger diameter and wider blades, than the noisy GTX 480 fan. The
shroud’s intake area is expanded as well.

There’s no doubt, the
GF110 is a very hot GPU. However, we can hope that with an improved
heatsink and fan, and hopefully slightly lower power consumption, the
GTX 580′s thermal and acoustic footprints will be significantly improved
over the GTX 480′s.

Reference: Chiphell