I am still uncertain if I should spend up to $100 on adding a Kuhler 620 + copper heatspreaders + bracket onto my GTX 580 (Gigabyte Windforce) or whether it's just an expensive and frivolous upgrade. I want to do it for the fun of it, but technically I should not be spending more money right now, and my GTX 580 was $275 itself on an open box deal from NewEgg (so that's 1/3rd of the price of the card for extra cooling).
The reason I'm wondering if the mod is worth it is that my card has a massive heatsink already and 3 quiet fans (I don't see them go over 50% speed up to 70C). I replaced the stock TIM on the GPU with Arctic Cooling MX-4, and currently my idle temperatures are 34-35C and load in Secret World beta with everything maxed is 70C (66C in D3 with everything maxed and vertical sync on). There's a mild factory overclock to 795MHz core clock already. Was testing higher clocks yesterday in nVidia control panel, and they did not actually seem to give me any noticeable FPS boost, unless I needed to get to something like 900MHz to notice a difference.
Anyway, here's a photo of my card with its heatsink. Do you think it's worth it for this card to do the mod? Or the temperatures are already fine, so it wouldn't make much of a change? Thanks in advance, this is really bugging me, as I'm trying to save that $100, but I just love playing with computer parts