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GTX295 single pcb from Inno3D spotted
- Thread starter Final8y
- Start date
But they dont get that hot now so what sort of difference are you talking ?
it says the heat goes out the back of the case but that will only happen with one of the 2 gpu heatsinks as the fan is in the middle, so the heat from one will go out the back and the heat from the other will be blown back into the case
Soldato
- Joined
- 8 Feb 2009
- Posts
- 3,462
- Location
- Sheffield
Probably none at all, but less heat is always better.
Heat is the overclocker's enemy. Running a current GTX 295 at stock clocks will not pose any sort of problem (atleast it shouldn't). Obviously as you start to increase clock speeds, more heat is going to be produced, having a more effective cooler is going to allow you to overclock further which brings us back to this new single PCB design.
I highly doubt they will be selling these 295s at the same clock speeds as the current dual PCB ones, even if they do I'd put money on them being better clockers or at least a damn sight cooler.
Caporegime
- Joined
- 18 Oct 2002
- Posts
- 33,188
There isn't less heat, two cores, same amount of memory, same amount of heat. Heat and temps are not the same things, you can output a 15W heat source into a heatsink the size of a room and it will run room temp, or a 2W heat into the heatsink the size of a grain of rice and it will run at 100C. One has nothing to do with the other.
Single pcb really has almost no advantages except ever so slightly easier to put together. A single pcb with the same amount of traces as two pcb's will actually be far thicker with more layers and cost more to put together, design and produce. Say theres 50 fab's in the world that could put together 8 layer pcb's for a simple gfx card, there might be 1 that can produce 16 layer pcb's that it requires for a far more complex card, that fab also uses far more complex, far more expensive equipment and takes 5 times as long to make each pcb.
You have the SAME amount of circuitry and INCREASED copper for shielding of signals, the only increase from a second pcb is literally that, more pcb, the stuff that costs almost nothing.
People don't like dual pcb cards for whatever reason, none particularly logical, infact not that I can tell easily but a single pcb card is likely to be longer than a dual pcb card and you'll end up with no difference.
Honestly, unless you're benching there just isn't a card that will really hurt a 4870x2 or a 295, overclocking once you are WELL beyond the power the game requires, offers you nothing.
The only thing a single pcb offers is easier cooling so "maybe" lower temps and maybe higher clocks, of which you need neither at all with a card like that.
Caporegime
- Joined
- 18 Oct 2002
- Posts
- 33,188
not really, watch temps or overall powerdraw, gpu's aren't particularly easy to overvolt, almost no one does. You also get very little in terms of temp increase from a simple clock bump, a 15% bump in mem clock and 12% or so on my 4890core gave a full 5W difference under load. THe big temp increases from overclocking cpu's is from the voltages increase, because power increases exponentially from voltage, the clock speed vs power output is not a exponential relationship.
SO you overvolt your cpu and boom, temps go nuts and you want better cooling, you don't overvolt and hell, default amd/intel heatsinks let you overclock miles anyway, till you overvolt.
THe same thing happens with gpu's, massively increased cooling doesn't really offer much extra headroom, unless you're overvolting which the majority won't/can't do.
its worthless, they simply don't like people/reviews saying "but amd has a single pcb, so they're better".
Caporegime
- Joined
- 18 Oct 2002
- Posts
- 33,188
what?
firstly if you're not overclocking, then if your parts run at 7c or 80C, makes no difference, secondly, theres no where you can see the results of overclocking with a 295gtx except in a benchmark, its completely worthless to overclock a card that gives you more fps than you can see to start with, infact you're literally going to be wasting power. 125, or 150fps, 10W more that you can't see, woooo.
People get way to into the whole exhaust thing, the difference between my 4870x2 exhausting outside and the shroud removed, a 120mm strapped on that blew hot air directly onto my cpu, 3C, did it change my top stable overclock, no, did it make any difference except in noise levels which became silent, no.
We have cases that move hundreds of cubic feet of air an hour, yes if you're running some tiny shuttle case and you manage to fit a stupidly big card in it makes a difference, but a modern quite high airflow case, it really doesn't matter in the slightest.
Soldato
- Joined
- 18 Oct 2002
- Posts
- 9,833
- Location
- Welsh Wales
But there is no saying its going to be better.... same gpu clocks..etc etc
Associate
- Joined
- 27 Feb 2009
- Posts
- 396
- Location
- Among the living
I still like the look of the original GTX 295... + no HDMi output kinda puts me off... i mean i want everything to be on a card... don't want a card to just be for heavy overclockers.