If you have read our NVIDIA GeForce GTX 570 review featuring Gainward’s GeForce GTX 570 Golden Sample ‘Goes Like Hell’ Edition, you will realise that both that card and the GeForce GTX 580 Phantom share the same printed circuit board (PCB) and metal base plate.
The base plate cools the memory chips and the card’s voltage regulation module (VRM).
After detaching the metal base plate, we are left with a chunk of dense aluminium fins which looks like a mini radiator. You will realise that the six heat pipes are spread carefully across the heatsink to areas where most of the air passes through the fins.
The three fans are Power Logic PLA8015S12HH ones with a top rotational speed of about 3500rpm and drawing 0.35A at 12V.
The heatsink’s base which comes in contact with the GPU is not very well finished. While it is sufficiently flat, it feels rough and machine marks are prominent. Perhaps if the finish was smoother, we might even get slightly better temperatures!
As mentioned above, the GeForce GTX 570 and GeForce GTX 580 from Gainward share the same PCB. This is the GeForce GTX 580 Phantom’s PCB, with all memory pads filled.
The massive NVIDIA GF110 GPU is surrounded by 12 BGA chips for a total of 3072MB video memory. The first GeForce GTX 580 and the GeForce GTX 570 GS-GLH that we saw had GPUs with printed wordings. This time round, most of the wordings have been etched into the heatspreader of the GPU.
Samsung K4G20325FC-HC04 2Gb memory chips, rated for up to 2500MHz operation are used.
Seated at the back of the PCB is ON Semiconductor’s ADP4100 integrated power control IC. The IC can be programmed for up to 6-phase operation. It supports a power state indicator and can be used to reduce the number of operating phases at light loads.
A 6-phase GPU VRM and 2-phase memory design on the GeForce GTX 580 Phantom.