[ WccfTech ] ASUS Radeon R9 295X2 8 GB ‘Vesuvius’ Retail Model Spotted

[3DVagabond]

But will it? The blocks are in series, so one GPU will run much cooler than the other. I'm not convinced that radiator is big enough.

While we haven't seen it yet that's not how water cooling typically works. The water circulates fast enough that it's all at one temp in the loop.

 

[guskline]

I had almost a 10 degree variance in the temps of my 2 EVGA GTX670 FTWs in my custom water loop because of different Water blocks.

In this video card they use EXACT Aseteck pump/gpu blocks so I doubt you will see much if any variance in the gpu temps. With the copper finned cooler and fan for the VRM, I think the radiator will help keep the temps cooler but I doubt they will be in the ball park of a custom water cooling system (My OC' 780 Classified 1298 core and 1702 memory at 1.25v) never exceeds 41C.

My hunch is this cooling system will keep the temps between 75 to 80C at max, preventing throttling.

 

[96Firebird]

Yes, we do. 290X CF, two cards at 1000Mhz. 295X2, two GPUs running at 1018Mhz. Should be faster, provided their hybrid cooling solution allows both Hawaii GPUs to maintain those 1018Mhz clocks.

The post I responded to claimed 15% improvement for the 295x2 over 290X Crossfire. I don't think an 18MHz bump in core clock speed is going to do that... :hmm:

 

[Silverforce11]

Check the pure cooper VRM x 2 heatsink. Should help tame the high temps that will be coming from the center of this card.

Sexist video card I have ever seen, even beating the good looking GTX690 and 780 series.

 

[RampantAndroid]

While we haven't seen it yet that's not how water cooling typically works. The water circulates fast enough that it's all at one temp in the loop.

Sure, but this isn't proper WC; this is basically those closed loop CPU coolers. Except those CPU coolers could only match a high end heatsink with fans when cooling a single 95W TDP CPU. (and had a 120mm rad for a single CPU, not 1 rad for 2 CPUs.) I don't want to think about how this will work for GPUs that generate quite a bit more heat.

 

[Silverforce11]

Sure, but this isn't proper WC; this is basically those closed loop CPU coolers. Except those CPU coolers could only match a high end heatsink with fans when cooling a single 95W TDP CPU. (and had a 120mm rad for a single CPU, not 1 rad for 2 CPUs.) I don't want to think about how this will work for GPUs that generate quite a bit more heat.

Don't compare its performance based on CPUs. Take some time to do some reading. AIO performs amazing on GPUs.

 

[3DVagabond]

This is probably the closest piece of hardware to compare. PureOC review

Even O/C'd well

This isn't exactly apples for apples, I understand. It is closer than trying to assume performance from what an AIO cooler does for a CPU alone, though.

 

[RampantAndroid]

This isn't exactly apples for apples, I understand. It is closer than trying to assume performance from what an AIO cooler does for a CPU alone, though.

Thanks for the link - I vaguely remember seeing this before. I still remain completely unconvinced (the rad looks a bit beefier on the PNY setup) and there's still a power/heat generated gap between CPU + GPU and GPU + GPU.

We'll see, I guess.

 

[Pandora's Box]

I wonder if AMD will have a new driver ready for this tomorrow?

 

[KaRLiToS]

While we haven't seen it yet that's not how water cooling typically works. The water circulates fast enough that it's all at one temp in the loop.

This is very true.

In my case, I have two sensors. One before my Feser 480mm Rad and one after the Mora 1080mm Radiator. It goes like this

1. Reservoir
2. 2 x MCP 655 Pumps
3. Feser 240mm Rad
4. Quad R9 290x
5. FIRST TEMPERATURE SENSOR [24'C]
6. Feser 480 mm Rad
7. 1 x MCP 655 Pump
8. Mo-Ra 3 1080mm Radiator
9. SECOND TEMPERATURE SENSOR [24'C]
10. Feser 360 mm Rad
11. Mobo block
12. CPU block
13. Mobo Block
14. Back to Reservoir

They are both at 24'C so it clearly demonstrates that the water is the same accross the whole loop because it moves so fast. As shown in my loop, after two huge radiators of cooling, the water is still the same temperature even after the Quad 290x.

 

[96Firebird]

I'd say both of those radiators are doing nothing then...

The heat capacity of water is only enough to relieve around 550W of heat for every 1°C increase in temperature. Considering you have 4x 290X before the first temperature reading, and a delta of 0°C before and after the radiators, I don't see how they are effective. Unless you gave idle temps, in which case... What was the point?

 

[KaRLiToS]

I'd say both of those radiators are doing nothing then...

Lollllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll

Quad 290x and those radiators are doing nothing.

Let me laugh again.

LOLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLl

 

[96Firebird]

Explain to me how they are doing anything if the temperatures are the same before and after a radiator? I'd love to explain it to my old thermodynamics teacher, I'm sure he'd get a good laugh at it too.

I'll give you a little lesson. Energy. The life blood of the world...

...I'll skip all the fluff and get to it. Assuming each GPU is dissipating 200W of power, the water collects that 200W of power into its stream. 4x 200W = 800W. I'm not sure what flow you have, I'll use 1.5GPM (341LPH). Since heat capacity of water is given in J/kg/K, we need to convert 341LPH into kg/s (J=W*s) = .0947kg/s. I'll add here that since the density of water is 1kg/L, all you need to do is divide LPH by 3600. Heat capacity of water = 4182J/kg/K = 4128W*s/kg/K. (4128W*s/kg/K)(.0947kg/s) = 391W/K. So we'll simply use 391W/°C. I assumed ~2GPM earlier, because that is what we typically use at work. I'm not sure if PC water cooling usually flows more or less than that, but that is quite a bit of liquid.

Since we have 800W total, 800W/391W/°C = 2°C increase in temperature.

Who knows, maybe your thermocouples aren't that accurate. If you want to post your GPM, I can get a more accurate answer.

 

[Silverforce11]

This is probably the closest piece of hardware to compare.

Its essentially the same as this.
http://www.techpowerup.com/reviews/ASUS/ARES_II/32.html

Probably the same power usage too since Hawaii running cool, tend to use similar power to Tahiti.

 

[SlowSpyder]

This is the fist dual GPU card from either camp that I kind of want. :wub: But, I thought $550 for my 7970 was crazy when it launched, no way I can do $1000+. But, pretty nice card none the less!

 

[KaRLiToS]

Explain to me how they are doing anything if the temperatures are the same before and after a radiator? I'd love to explain it to my old thermodynamics teacher, I'm sure he'd get a good laugh at it too.

We already told you that its because the water moves so fast in the loop that the water temperature is the same across the whole loop.

 

[3DVagabond]

Explain to me how they are doing anything if the temperatures are the same before and after a radiator? I'd love to explain it to my old thermodynamics teacher, I'm sure he'd get a good laugh at it too.

The water doesn't stay in the blocks until it gets hot and then goes to the rads until it cools off. It's constantly circulating and the temp of the loop goes up and down as a whole.

KaRLiToS example isn't invalid, it actually validates the premise that the loop heats and cools as a whole.

 

[Bateluer]

But will it? The blocks are in series, so one GPU will run much cooler than the other. I'm not convinced that radiator is big enough.

Which is why I said if they can maintain their high clock speeds.
The radiator does seem a little small, similar in size to the Corair H60-ish models.If they're going for that price point, they might as well have used a 2x120mm sized radiator. But it does appear to have dual pumps, one in each water block, which should keep the liquid moving sufficiently fast. I shudder to think what will happen when one of the pumps fail though. Pump failures in the CPU AiO coolers aren't uncommon.

 

[RampantAndroid]

Unless you gave idle temps, in which case... What was the point?

This was my question...are those idle temps? Aren't you having problems even getting the quad fire to work?

 

[RampantAndroid]

Which is why I said if they can maintain their high clock speeds.
The radiator does seem a little small, similar in size to the Corair H60-ish models.If they're going for that price point, they might as well have used a 2x120mm sized radiator. But it does appear to have dual pumps, one in each water block, which should keep the liquid moving sufficiently fast. I shudder to think what will happen when one of the pumps fail though. Pump failures in the CPU AiO coolers aren't uncommon.

Or burst. I don't think 2x120 would make them popular. Every case has a 1x120 slot or bigger anymore. A thicker rad would have made sense though, with a high output fan.

 

[3DVagabond]

This was my question...are those idle temps? Aren't you having problems even getting the quad fire to work?

No. Quadfire isn't the problem. The problem is syncing the displays and/or flickering.

 

[Attic]

I think temps will be ~87-92C, find out soon enough.

 

[VulgarDisplay]

Which is why I said if they can maintain their high clock speeds.
The radiator does seem a little small, similar in size to the Corair H60-ish models.If they're going for that price point, they might as well have used a 2x120mm sized radiator. But it does appear to have dual pumps, one in each water block, which should keep the liquid moving sufficiently fast. I shudder to think what will happen when one of the pumps fail though. Pump failures in the CPU AiO coolers aren't uncommon.

If one pump fails the loop will continue to work because they are in series.

 

[krumme]

I think temps will be ~87-92C, find out soon enough.

Ok i take that bet. Non oc and ambient below 25c, it will not exceed 85c - i would say never over 80c. in actual gaming - it is damn interesting this cooling competition. lol.

 

[wand3r3r]

Ok i take that bet. Non oc and ambient below 25c, it will not exceed 85c - i would say never over 80c. in actual gaming - it is damn interesting this cooling competition. lol.

If it is kept under 80C under the most intense loads that will be very impressive to me (with the small radiator).

Since they already state that AIB's are free to customize it I expect an MSI 240mm model which can actually be overclocked and kept reasonably cool (under throttling).