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[PC Gamer] Nvidia is putting desktop-caliber GTX 980 GPUs in laptops - Page 3

post #21 of 55
Two scenario's here. Either it's unlocked and actually runs at desktop 980 frequencies and eats 200w easily (which would be insane in a laptop) or it's not.
Quote:
Live gets funnier each second, I remember posting a thread about gaming laptops and how fast they were closing the performance gap

Last i checked, the fastest mobile GPU (980m) was about 35-50% of the performance of the desktop flagships. I don't really consider that closing the gap if it's overclocked to the point of desktop cards being only twice as fast. A huge part of that was low clock speeds though, it wasn't really viable to run laptop gm204 at 1400-1500mhz, even the cut-down version. The memory bandwidth was crippled too.
Edited by Cyro999 - 9/22/15 at 5:27pm
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post #22 of 55
Quote:
Originally Posted by Cyro999 View Post

Two scenario's here. Either it's unlocked and actually runs at desktop 980 frequencies and eats 200w easily (which would be insane in a laptop) or it's not.
Last i checked, the fastest mobile GPU (980m) was about 35-50% of the performance of the desktop flagships. I don't really consider that closing the gap if it's overclocked to the point of desktop cards being only twice as fast. A huge part of that was low clock speeds though, it wasn't really viable to run laptop gm204 at 1400-1500mhz, even the cut-down version. The memory bandwidth was crippled too.

 

It has an unlocked core and memory clocks, although it is voltage and power limit locked. And it does run at desktop 980 frequencies. I think PCPer had their demo unit running at something upwards of 1350+ core and they had a +175 to memory. As to the power draw, who knows until you actually get these in for full on testing. But they are within the thermal envelope of existing laptops. I think Aorus (Gigabyte) is actually making a semi-thin&light with this desktop GTX 980 in it.

post #23 of 55
Quote:
Originally Posted by Kinaesthetic View Post

It has an unlocked core and memory clocks, although it is voltage and power limit locked. And it does run at desktop 980 frequencies. I think PCPer had their demo unit running at something upwards of 1350+ core and they had a +175 to memory. As to the power draw, who knows until you actually get these in for full on testing. But they are within the thermal envelope of existing laptops. I think Aorus (Gigabyte) is actually making a semi-thin&light with this desktop GTX 980 in it.

Any idea what voltage and what memory clocks?

My card uses almost no power at 1250mhz @~1.06v. 1300-ish is achievable with very low volts, it's just not a typical desktop frequency. My desktop 980 out of the box uses ~1370mhz with the voltage to do mid-high 1400's (on a chip that isn't great) so it's unsurprising to see a lot lower power numbers on a chip limited to lower voltages or running a power limit.

"desktop 980 frequencies" as i know them would still be limited a bit by a ~220-240w power limit (the worst i've seen that sensor report is ~280w @1.25v) particularly in power intensive loads so if it's like a 150w limit on laptop, it will force them to stay at lower volts
Edited by Cyro999 - 9/22/15 at 6:09pm
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post #24 of 55
Quote:
Originally Posted by Cyro999 View Post


Any idea what voltage and what memory clocks?

My card uses almost no power at 1250mhz @~1.06v. Frequency+voltage math alone says an ~80% increase in power/heat to go from that to 1550@1.275. I think they're still staying pretty close to the golden efficiency zone because these chips are power monsters at >1.2v but they don't take high voltages to do 1300 or so.

 

Well, that is a +175 on top of the full 7Ghz memory clock that is found on the GTX 980. The memory and core are running at full desktop frequencies. I don't know what voltage. None of the current videos/reviews have stated what the voltage that these cards are running at.

 

But I mean it is very reasonable that they managed to cram a full sized GTX 980 into these machines. You saw what AMD did with binning the Fiji dies to kingdom come to get us the Fury Nano. The GTX 980 in the first place is significantly more power efficient than the Nano, and that isn't including binning the GTX 980 to kingdom come too.

post #25 of 55
GTX 980M is a 1536 shader part with 256-bit bus and 1000-1100 clock, I think 5.5-6ghz memory. It's about 75% a desktop 970 and perfectly fine for 1080p.

I had a Clevo 570ETU 17" it weighed 8-9 lb and was 2" thick... But it packed an underclocked 1GB 9800 GTX+ and intel quad core 2 duo at 3ghz (bought es sample for 400, had 12mb cache) It ran GTA4 quite well.

I'm pretty sure the battery life on these puppies is quite useable do to hybrid power savings. My clevo ran the 280M on idle for up to 2 hours with screen on minimum.

I will still consider skylake gaming notebooks, 6700hq I think they call it. Still, an SFF would suit me well. I'm always worried about breaking an expensive laptop on the go.
    
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post #26 of 55
Sure, i've done my own benchmarks at low volts beating 770/7970 numbers with very low power limits

I just don't consider this some amazing laptop leap when it's probably a fairly limited version of the 980 but it's nice if they can hit 50, 60% of 980ti performance instead of the ~40%-ish of the 980m.

Nvidia advertising "hey we have 90% of flagship performance" is kinda BS; with this 980 in laptop i believe they could do it when comparing to a stock desktop 980 but it just wasn't true saying that about the 980m and to say it in the first place, they needed to ignore the bigger dies with 1.5x wider memory bus and 1.5x increased SMM over 980.

They have this chart that shows "laptop performance" getting closer to desktop flagship performance gen for gen which hugely exaggerates the improvements if you fix it to be an actual apples to apples comparison

Quote:
GTX 980M is a 1536 shader part with 256-bit bus and 1000-1100 clock, I think 5.5-6ghz memory. It's about 75% a desktop 970 and perfectly fine for 1080p.

It has 5ghz memory. Your performance assessment is correct and they advertised it as 90% of flagship performance wink.gif
Edited by Cyro999 - 9/22/15 at 6:15pm
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post #27 of 55
Videos about these laptops with a full-sized GTX 980:










Edited by BiG StroOnZ - 9/22/15 at 8:09pm
post #28 of 55
Makes my 980M sad sad-smiley-002.gif
post #29 of 55
Quote:
Originally Posted by Masked View Post

Nah.

You can get a full sized card in a 15" and keep it under 6lbs...Not complicated at all.

Could even kick up a 17" to 7lbs and make the gpu cooling, water.

Motherboards for laptops these days, even the high end ones are only about 8"...Most are smaller...Actually, most are as big as they are just to facilitate the ram.

So, this really isn't all that complicated.

If someone were to take it a step further and make a "docking bay" where you could just slot in a full sized GPU - I could see that being a possibility as well...
Alienware has a docking bay for full size gpus, bit of course it only works with their lap tops
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post #30 of 55
Thread Starter 
Quote:
Originally Posted by Bonkers View Post

Makes my 980M sad sad-smiley-002.gif

The 980m is still a fine GPU. I can still see myself not having to upgrade for the rest of this console generation.
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