The fan on the actual heatsink would have to assist in cooling as well you would think. (Edit: probably to blow air on the VRMs now that I think of it.)
The fan on the actual heatsink would have to assist in cooling as well you would think. (Edit: probably to blow air on the VRMs now that I think of it.)
A single aio for the 290x gets you to mid 50's. Check OCN red mod thread for more. I bet a single 120 with dual high static pressure fans would let the cards run in the 70s or 80s which is hot for water but cool compared to stock 95c
Yup, and that's all that is needed to maintain full boost clocks. They could have went with - 140mm or a 240mm radiator, but then compatibility would become and issue.
Water will do that for ya. 500W is a lot of ponies to get under thermal control.They didn't just maintain 290X clocks, they increased them? Mother of god.
Water will do that for ya. 500W is a lot of ponies to get under thermal control.
I don't think this card goes against TitanZ though. I think this goes against an anticipated 790.
Impressive, but I always knew they'd have to run water for a dual Hawaii card.
With aftermarket coolers, yes. He's talking about watercooled cards however, adding 2 waterblocks and a loop (or I guess an NZXT Cryo or whatever?) would bring the price to pretty much an even level. Either way, I just think this is a step up from using air coolers, and a change for the better.
Is there a dual GK110 790 coming soon? That would be sexy as hell.
I enjoy seeing NV and AMD competing viciously.
Edit: Also this thing is not going to be OC-able, a single 120mm rad just cannot cope with that much TDP. I think it will be running in the 80-85C range already at stock, undervolted binned chips.
This is really a weird card. 500W, half water, half air, clocks higher than the single GPU card. My gut tells me its a rubbish, bandaided attempt to clinch the performance crown using whatever means necessary. A 50 dollar cheapo watercooler with a big ass fan. Worse of both worlds, loud air cooling with awkwardness of water. I highly doubt this thing will run cool. A single 120mm thin rad has a Celsius/Watt rating of around 0.16 C/W with a fan speed of around 1500RPM.
Using that we have 0.16*500 = 80C over ambient which is usually around 20-22C. Therefore the temps will be hitting 100C with just the watercooler. The air cooler will bring it down a bit, but we are looking at ~90C temps on this thing easily. 500W on load is no joke. I have 2x240mm 45mm thick radiators for a single 780 and a 4820k to get decent temps and those only pull around 350W max.
We don't have proof that the water cooler costs only $50, I don't understand the rage really lol, plus you haven't seen noise tests performed and usually a single large fan is less noisy than two smaller ones. Your assumptions are all wrong IMO.
500w is what you would expect two high end GPUs would require, don't see it as a negative really.
The rad looks to be rather thick though.
only 2x8pin?
Don't worry, I'm sure there will be aftermarket cards with 240mm radiators and 2x8pin.
There aren't many assumptions there. The pictures even show that its an asetek water cooler, the round pump design like on the H50... The fact is 500W on a thin 120mm cooler with 2x120mm fans and a typical GPU fan will be running hot and won't be quiet. Everything I posted was based on the specs, obviously no one has seen noise tests yet! Its not out. Its called speculating based on the leaks using known data (C/W of 120mm rads.) We will wait and see how the tests match, but unless AMD found a way to break the laws of physics, the card is going to be hot if it does indeed draw 500W with the leaked cooling specs.
Please tell me "all" the assumptions I got wrong.
They didn't just maintain 290X clocks, they increased them? Mother of god.
Why would it necessarily have be noisy? The 'GPU' fan, which would normally be the louder of the two fans, isn't actually there to cool the GPUs anymore. That job has been handed over to the pump/rad/120mm fan. The GPU fan will simply be cooling the VRMs, memory and SMDs, so it shouldn't need to spin all that fast in order to keep up.
And as Silverforce11 pointed out, the hotter a loop runs the more heat it is able to dissipate due to the increased ΔT between the loop water temperature and the ambient air temperature. Enthusiast watercoolers attempt to remove as much heat as they can from the loop to keep CPU/GPU temps as low as possible. AMD only has to keep the GPUs temps low enough to prevent throttling. So a single 120mm rad might very well be enough to accomplish this because the loop will most likely run much hotter than what you would expect to find in an enthusiast setup.