I still don't understand what's the point of the 512-bit bus here. Is this card really much worse with a 384-bit bus? maybe one could downclock the memory to see how much worse the performance is?
Yeah, I like my fans NOT to have to be at full speed.With case fans at full speed (no reported change in CPU fan speed, so likely still 1k), CPU temp maxed out at 64°C.
They needed it to get more memory, once 3 GB modules are in and clamshell design they'll sell this for loadscash as 96 GB AI thingyI still don't understand what's the point of the 512-bit bus here
The point is that SM changes are snooze and I was promised Big Stuff™.Well, allegedly Blackwell was meant to be on N3, just like Zen 5, so then they had to port it to N4 and probably had to cut some stuff and freq regressed.
The cooler is extremely nifty for what it is, but there is still no replacement for displacement and you'd still get better cooling with a physically larger cooler. Nvidia is using liquid metal to reduce the delta-T between die and cooler so they can get away with a 2 slot cooler running hotter at the same GPU die temperature, but that doesn't help the memory that's still going to have thermal pads.View attachment 115480
The FE cooler is a joke with those temps. I would've been surprised as heck if both those temps had been under 80C with a two slot design and so much heat to dissipate.
Really no sympathy for the folks who pay for this crap.
That RAM is like the 3090 issue all over again. They forget so easily, their past "adventures".
This could be the first time that a previous gen card's prices go up!
Then you're looking at a 4 slot card at minimum. Even 4 slot with effectively 3 slots open to air after display outputs would still need pretty high air velocity to move 575W and would be quite loud. You might as well just get a 360mm AIO card at that point.I feel very vindicated in my previous assertion that the 5090 exhausting its heat upwards directly into the CPU cooler was a horrible design decision. A 575w TBP video card should exhaust out the back of the case, full stop.
I feel very vindicated in my previous assertion that the 5090 exhausting its heat upwards directly into the CPU cooler was a horrible design decision. A 575w TBP video card should exhaust out the back of the case, full stop.
Expelling nearly 600w of heat out of the back or a video card is not going to happen without a ridiculous amount of airflow and noise!Then you're looking at a 4 slot card at minimum. Even 4 slot with effectively 3 slots open to air after display outputs would still need pretty high air velocity to move 575W and would be quite loud. You might as well just get a 360mm AIO card at that point.
Size generally only matters in SFF cases. For a full-sized, modern ATX case you're going to have 3-4 slots available with room for an add-in PCIe 1x board or two. With 3 larger fans, as compared to the FE, you should be quiet and cooler than the FE equivalent. You also have more fins for the heatpipes to transfer heat away from the GPU core. Also, the 4090 FE cooling was adequate and exhausted heat out of the rear of the case. This can't be said for the 5090 when it reaches 90°C+ after 30 minutes of heavy operation.The cooler is extremely nifty for what it is, but there is still no replacement for displacement and you'd still get better cooling with a physically larger cooler. Nvidia is using liquid metal to reduce the delta-T between die and cooler so they can get away with a 2 slot cooler running hotter at the same GPU die temperature, but that doesn't help the memory that's still going to have thermal pads.
I expect AIB coolers to be a lot better for memory temperatures overall compared to the FE.
Then you're looking at a 4 slot card at minimum. Even 4 slot with effectively 3 slots open to air after display outputs would still need pretty high air velocity to move 575W and would be quite loud. You might as well just get a 360mm AIO card at that point.
It may does to some extent, but unlikely it will make a difference with a fully loaded GPU unless Ada design has left substantial room for optimizations aka power/clock gating, reducing the size of high activity nets, shorter data paths, etc.Yeah it does, especially when you gut the shader core pain points (SMSP schedulers and opforwarding networks).
AIOs dump their heat to the radiator, which has 2-3 fans on it, and those fans typically exhaust straight out of the case. Worst case is you have 2-3 fans taking the heat from the radiator and dumping that heat into the general case air. If that's the case, you'll need to have an equal amount of general case fans exhausting out of the case.Expelling nearly 600w of heat out of the back or a video card is not going to happen without a ridiculous amount of airflow and noise!
Apart from blowers (which I really don't think would work in this case) and AIO GPUs all GPUs dump their heating into the case.
I have a 6950xt and it has the traditional fan arrangement so it sucks air in from underneath the cad and expels it mostly out of the edge of the card facing the case. That hot air then bounces off the case wall and roughly half goes up past the CPU and roughly half goes down to recirculate back through the GPU cooler. It does work ok but it's not very efficient.
At least with the 5090 the GPU is constantly being fed cool unused air.
And servers where these cards with 96 GB RAM will be running doing cheap inference...Size generally only matters in SFF cases
Exhaust out the back of the case does not equal blower style cooler. My Zotac 4090 exhausts out the back of the case, but that's channelling the air moving across the heatsink from 3 low speed fans. It also dumps some portion out the back and top of the card, but most of the hot air is exhausted out the back and the portion exhausting into the case is whisked away by the front panel case fans. And is it overengineered for 450w TBP? You betcha and that's exactly the way I want it.
And datacenters generally don't care about noise at all. Those cards will be $30k+ with 60db blowers and/or industrial fans at the front of the server rack case. So what's your point in comparing apples to oranges here?And servers where these cards with 96 GB RAM will be running doing cheap inference...
The 4090 didn't dump much heat out of the case, the large majority of it still went into the case. I think you're really misinterpreting how air is moving in the cards.Size generally only matters in SFF cases. For a full-sized, modern ATX case you're going to have 3-4 slots available with room for an add-in PCIe 1x board or two. With 3 larger fans, as compared to the FE, you should be quiet and cooler than the FE equivalent. You also have more fins for the heatpipes to transfer heat away from the GPU core. Also, the 4090 FE cooling was adequate and exhausted heat out of the rear of the case. This can't be said for the 5090 when it reaches 90°C+ after 30 minutes of heavy operation.
How else is it getting out of there? I think that we might be talking about different things here.Exhaust out the back of the case does not equal blower style cooler.
Yeah, that bad
You can see efficiency comparission like this
Blower style is a high-speed vortex style fan forcing air through a typically heatsink filled channel with nowhere else for the air to go except through the channel.How else is it getting out of there? I think that we might be talking about different things here.
For me 'exhausting out of the back of the case' means blowing the air out of the back of the video card where the IO stuff is.
For reviews, yes.Is the 5080RTX still under NDA?
Is your card this one?Exhaust out the back of the case does not equal blower style cooler. My Zotac 4090 exhausts out the back of the case, but that's channelling the air moving across the heatsink from 3 low speed fans. It also dumps some portion out the back and top of the card, but most of the hot air is exhausted out the back and the portion exhausting into the case is whisked away by the front panel case fans. And is it overengineered for 450w TBP? You betcha and that's exactly the way I want it.
I'd be surprised if the majority of air came out of the back of that card, it's physically a small area so it would be pretty loud!I guess you could call my Zotac 4090 cooler open-air since some of the air does go back into the case, but a large portion goes out the back because that's the path of least resistance for the air. I would wager if you did a smoke test, you'd see that most of the air is exhausted out the back of the case.
More greed leads to even more greed. Nothing to see here.Just greedy.