That's not what the results look like. Even OC GF104 stay well below the power draw of HD5870 (for instance here: http://ht4u.net/reviews/2010/zotac_geforce_gtx_460_amp/index12.php). By my guesstimate a 8 TPC GF104 running at 800/1600/1000Mhz would have quite a similar power draw to HD5870, while being slightly slower.
NVIDIA GF100 & Friends speculation
- Thread starter Arty
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Babel-17
Veteran
http://www.guru3d.com/article/msi-geforce-gtx-460-hawk-review/
Nice card!
But it can truly draw the juice when the voltage and clocks get bumped.
http://www.guru3d.com/article/msi-geforce-gtx-460-hawk-review/20
http://www.guru3d.com/article/msi-geforce-gtx-460-hawk-review/8
Not many will try to overclock that high, let alone succeed, but it's nice to see such a robust card.
Nice card!
But it can truly draw the juice when the voltage and clocks get bumped.
http://www.guru3d.com/article/msi-geforce-gtx-460-hawk-review/20
That 342 Watt number refers to peak, out of the box, consumption. Unless I'm reading the article incorrectly.
http://www.guru3d.com/article/msi-geforce-gtx-460-hawk-review/8
Not many will try to overclock that high, let alone succeed, but it's nice to see such a robust card.
Be careful in such comparisons. Processes change and some of the differences can just be due to the point in time that they were profiled.
Mobile Fermi lineup - http://www.nvidia.com/object/geforce_family.html
Nice, they snuck GF108 in as well: 48 shaders, 2GB RAM, 900Mhz
http://www.nvidia.com/object/product-geforce-gt-420-oem-us.html
Hmmm, and they claim it draws only 50w, 8w less than the GT220. Will be interesting to see how it fares against that card as it has similiar specs. It's not a full GF108 though. According to Nvidia's product images the 96 shader mobile parts and the 48 shader GT415m share the same chip.
DavidGraham
Veteran
TDPs :
http://www.hardwarecanucks.com/forum...ntroduced.html
something isn't right in that table , wasn't GTX 480M a 100w part ?
http://www.hardwarecanucks.com/forum...ntroduced.html
something isn't right in that table , wasn't GTX 480M a 100w part ?
I have no idea
But PcLab.pl suggested that that card will be initially available on Asian market but later will be available in Europe as well. I don't know if thats true but i have seen many Colorful cards on Polish market so this is not Asian exclusive brand.Anyway i was just trying to show to Arun that higher clocked models are/will be available.
This is really strange because it looks like that this particular Colorful board will be at least as fast as GTX 470 if not faster. I am wondering how much will it cost
nVidia marketing and nv-loving sites like hardwarecanucks falling for it. Sure, they didn't lie here, but they sure as heck didn't tell the whole truth.
the GPU itself might have a TDP of 70W, but the whole MXM module+GPU has a TDP of over 100W (see what they did there? "w/o MXM module")
http://www.notebookcheck.net/Review-NVIDIA-GeForce-GTX-480M-Fermi-in-the-Clevo-D901F.32251.0.html
it's like putting notebook weights on your website without the battery.
5870M has a 55W TDP total (GPU+MXM.)
DavidGraham
Veteran
oh , I see thanks for the clarification ..
On a lighter note , the site you mentioned states this :
So that means ATi does the same too ?
Yes, I mentioned it there as well. the 5870M has a TDP of 50W according to NV's slide, but as far as I'm aware (and reviews show) the package Wattage of the 5870M is 55W. i.e. on a Crossfire 5870M setup the total TDP is rated at 110W.
DavidGraham
Veteran
So I guess Nvidia mobile chips are 30%~40% more power hungry than ATi chips .
that is bad for OEMs , I don't think Optimus would be enough to promote them .
that is bad for OEMs , I don't think Optimus would be enough to promote them .
IF they already have a 150W power brick, who cares? It's just about that the performance can be tapped when called upon. NV is only feeling the backlash on it's own campaign of focusing on better better performance per Watt/mm2 in this community.
Optimus is doing an excellent job and if your products are power hungry, the efficiency just gets better (85% power savings!)
Not additional SM's. The practice of disabling SM's in general is a form of redundancy. Each GTX 480 and 460 had a "redundant" SM. But yeah, I don't think GF106 has 5 SM's either. Sure is big though.
Yeah, that's a tad optimistic. My vote is for 384SP/775Mhz/1GB 4Ghz GDDR5. That's still good for a 25-30% perf increase.
Haven't kept up with mobile stuff. Why is the "+MXM" delta for Nvidia's chips so much higher?
If it's about the whole setup including coolers, the GTX480M requires at least two fans, that include some extra power usage right there.
DavidGraham
Veteran
Also it uses 2 GB of DDR5 RAM , compared to 1 GB for HD 5870 .
>225W products require 6-pin + 8-pin (e.g. GTX480). Sub-225W boards are fine with two 6-pin power plugs. Hypotetical GF104-based board going over 225W would require 6-pin + 8-pin like Fermi. 2 6-pins are common in mainstream, but 6+8-pin aren't...
The review at guru3d shows, that factory OCed 1GB models of GTX460 are already ower 200W...
http://www.gamestar.de/hardware/tests/grafikkarten/2317532/nvidia_geforce_gtx_460m_p2.html
Edit: those 460/5870 numbers are very suspect so maybe the whole thing is garbage.
Edit: those 460/5870 numbers are very suspect so maybe the whole thing is garbage.
I very much doubt they created 3 SKUs with 96 SPs, all of them cut-down from a 192 SP or even 240 SP chip. It's much more likely GF108 is a 96 SP part which is cut-down to 48 SP in GT415M. The texture numbers look... wrong though.
no-X: Argh, yes. That's an embarassing brainfart, thanks; but anyway if GTX 470 with a 215W TDP and arguably even higher peak power doesn't need the 8-pin, then I'm not sure we should be overly worried about a potential GTX 475.
Yep, they're calculated as if there's only 6 TMUs per SM instead of 8.
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