Summary: I bought one of these to replace a dead fan on an Radeon X1950 Pro AGP... Worked perfectly... Tried the same model on an HD4850 and it works well. The only issue I had both times is with the "silver" memory heat sinks... The thermal tape does not always "stick" very well... Be sure to clean your memory chips first!!! They should be "gold" to match the main fan. It should go for half the listed price in my opinion...
Pros: Fit an old Visiontek HD4850 PCI-E card
Cons: Fan doesn't connect to the card - instead to the motherboard (with a small internal fan controller).
Pros: I installed this baby on my old Geforce 8800gt. This video card used to get to ~60 degrees when idle, but now it idles at 42 degrees! Super quiet too, have owned this for a couple of months and no problems so far.
Cons: A little bit pricey and the controller is somewhat unnecessary.
Summary: All that said, I'd be skeptical about using this cooler with anything more than a 4850/5830/6850/7850, as their TDP and wattage requirements under load are much higher than the 80W of the 4770. I tend to run around 45C under load. I guess it depends on how toasty one likes their hardware to run. Sum: I'd buy it again!
Pros: I have this cooler installed on an reference-design HD 4770 whose fan died unexpectedly. It has brought my temperatures down by 20C under load! Even at the highest fan setting (via the included fan controller) the unit is infinitely quieter than the stock cooler and inaudible over the sound of the push/pull setup of my CPU. Its allowed me to keep my old 4k-series workhorse around a bit longer!
Cons: The official compatibility chart needs to be updated with more modern mid-range cards--this thing will definitely fit cards from the HD 5k/6k/7k series, as their 4-post cooling setups are identical to the one used on my 4k series card.
Pros: This fan is great, pure solid copper feel, but still light weight. I changed my fan out because the original one was so loud. I used arctic 5 for paste and seamed to work great. After an hour of came play copper fan was still at room temp.
Cons: Make sure you check the clearance of the fins to adjacent PCI slots. Otherwise it was hitting the PCI slot and not fitting into the slot needed.
Summary: Awesome AWESOME. My other fan mightve been dirty but i dont know that differences is pretty amazing. Plus it came with a fan control (Fanmate2).
Pros: This fan is absolutely amazing! The install was very easy and very quick, took me about 10mins. I installed this on to my GeForce 9600GT Stock Fan idle - ~65C heavy gaming - ~98C Zalman VF900 idle - ~32C heavy gaming - ~46C Unbelievable! Plus it was at the lowest RPM ( Silent Mode)I would most definitely recommend this fan! I wouldve gotten the Zalman VF1000 but its not compatible with my 9600GT Also the led light was pretty cool and it took about 3 days to deliver
Pros: This product boasts a remarkable design, in terms of thermal management and acoustics (silent mode really is silent). Even turned all the way up, noise is imperceptible inside a case. I did some thermal performance testing with a 20w element, and this fan (on quiet mode) boasts a delta T of 2 kelvins, yielding a thermal resistance of just under .1 K/w. "Budget" VGA coolers I have tested are typically in the realm of .5 K/w, not as quiet, and not much less expensive. I...
Cons: My only complaint is that the LED does not stay at full brightness in silent mode.
Pros: Bought for a GeForce 9600 GSO and fits perfectly. Didn't take much time to install. Just make sure to have a three pin connector on your Motherboard or your video card. I did not and had to buy a seperate fan controller.