Pros: Awesome cooling even in passive mode. Lowered a VisionTek 4850 from 79c Idle/90c load to 43c idle/60c load. That's serious. Gonna strap a 140mm yate loon to see how much cooler it goes.

Cons: HUGE - not really a con if you have the case for it. Fins can be sharp. Be careful.

Overall Review: Voltage heat sink is too long for the 4850. I ended up using zalman ram sinks (the blue ones). There are 4 screws that let you adjust the plate position. The 4850 requires the alternate position for clearance. Pretty simple, though.

Pros: Temps are amazing for 8800GT!! (38C Idle/45C Full load in crammed mid tower case), Decent price, Smaller height then thermalright model.

Cons: No PWM voltage heatsinks, Large size dimensions, Thermal tape provided is garbage!!!!, Plastic connector clips, Side plastic covers pointless so remove them, Time consuming if you do a complete mod.

Overall Review: It is very time consuming to do if you go all out like I did. Make sure you have some of your favorite chemicals (I used Goo Gone & Isopropyl Alcohol) to remove sticky thermal tape off heatsinks and clean up ram/gpu. You'll need some zip ties too for the fans you put on it (I put 2 quite 120MM Fans on) Make sure you buy PWM voltage heatsinks which are not included and maybe some extra ramsinks. Also I suggest buying Sekisui 5760 thermal tape, it's by far the best tape I've ever used.

Pros: I now have 2x 4850's with the Accelero on it, and a 4870. Idle temps with stock coolers = 75C - 80C, and in gaming over 90C with fan louder than you-know-what. Once the S1 rev2 was installed, I strapped on a couple of Yate Loon 120mm fans ($5-ish each at most places, black frame with orange blades) and idle is about 35C - 38C, and load under intense games like Crysis or Stalker = 55C average. I don't think I've ever seen it go over 60C.

Cons: Pretty easy to install except for the bottom gpu memory sink...the heatpipes go right over that bottom memory chip, which means you have to alter (I used needle-nosed pliers) the sink that comes with it, or use a different sink that is lower profile. The sinks that come with it have junk for thermal tape. I used naptha (lighter fluid) and scrubbed them all clean, then used Arctic Silver Adhesive thermal compound (epoxy) to attach either the stock sinks or Zalman blue gpu sinks. Entire process is a pain in the rear, but the results are so awesome that it makes you wonder how AMD/ATI can allow single-slot coolers on their partner's cards that keep the gpu's up over 70C...

Overall Review: Take your time, follow instructions, and have all your tools and necessary thermal pastes or compounds ready, a bottle of 90% or better rubbing alcohol, and you will amaze yourself (and your card!) Fits perfect on Radeon HD 38x0 and 48x0 series cards, guaranteed.

Pros: had this on a 4870 that gave me the d601 red LED of death. pulled the card and grabbed an HIS 4650 off craigslist for a quick replacement till i got the 4870 fixed. looking at the mounting plate of the cooler it has 4 holes that line up for the 48XX cards and four holes closer together. removed the noisy little cooler on the blue HIS card and checked and sure enough the smaller patern lined up. used some arctic siver5 and bolted in the cooler to the card. had to make sure to not overtighten the base to the pcb. also the 4650 has a square plastic boarder around the chip so you can't crush it, but alows a cooler to just sit on top of the chip.removed to doublecheck and the paste showed perfect contact. with no fan on the cooler at all it runs 10 deg. C cooler than stock cooler with ZERO noise.

Cons: its too big for little cases.

Overall Review: seems a bit extreem for a 46XX card but i had it sitting there. if you want no noise, and have the room, this will work sweet.

Pros: it works great for what it is. it is big, but i got it to fit inside my silverstone sg-01evo case with some mods. on my 4870 i had ccc 8.10 tuning my fan speeds but to get acceptable temps i needed to turn up the fan to 40% or more. and with my case on my desk 2 feet from my head, its just too loud. so with this on the card with a low rpm 120 mm fan modded into my case side, blowing on only half the card,there is almost no noise at all and getting 39 deg C idle and low 50's under load. went from 3 fans on that side of the case to one! much quieter.

Cons: none really. the one heat sync on the bottom right ram chip wouldn't fit under the heat pipe,so i had to sand down the corner of the sync to fit under it. probly just a 4870 issue. no biggie.

Overall Review: a real keeper. will fit other cards too, so if i change cards i can use the cooler. so glad my case is quiet again.

Pros: Works great with my ati 4850, thats right, 4850. The temperature drop was amazing, although i am using a single 90mm fan on it since it doesn't come with a fan (and isn't intended to use one...). I haven't seen the temperature go above 45c since i put it on, before it was maxing around 75c with the stock hsf.

Cons: It's frigg'n huge, but fits with room to spare inside my antec p180. The ram sinks kinda suck. One fell off after it had been sitting in my case for about 5min. Not a good thing to have metal pieces falling off in a case while things are running... Just say'n. I'll probably remove the rest of the ram heat sinks just so none of them fall on anything important at a later date.

Overall Review: You can monitor the temps really well with gpu-z on this card. Will give temps in 4 different areas. Good luck and i hope this was helpful to someone.

Pros: running 8800gts (g92) stock sink ran idle @ 62c/low 70c load... with accelero s.1 idle @ 39c O_O wooh/ 45c load!!!!!!! w/ fan pretty much it was cheap/ ninja silent/ installs a breeze /and it did what it was suppose to do and then some !!!!!

Cons: might want to get some extra thermal greese. you might end up rubbing the pre applies one off the sink like i did while trying to install.. also there no voltage regulator heat sink. just ram sinks for 8800's.. other then that 5 eggs all the way

Overall Review: non relevant... but what happent to shenmue3?!!?!?! bring it back!!!! those who ever played dreamcast and know what am talking about

Pros: superb cooling at any price, rivals water. silent even with the Turbo Module.

Cons: thermal tape is about as sticky as teflon, wouldn't stick to glue. (I used Artic Silver Ceramique and a spot of gel super glue in the corners)

Overall Review: I purchased this in combination with the Turbo Module and the temperature difference made me nearly faint. BFG 8800GT OC2 (675/1674/1950) first fan design temps were upper 60s @ idle and mid 80s under load. With the S1 + Turbo Module were cut by more than half idle/load 32°/42°. Delta idle was stock/S1 50/15, for those that don't know, delta is ° above ambient °. Those are insane numbers.