New details about Nvidia`s Maxwell

You definitely go for a 3630/680m, so you can overclock as much as you want, and are not stuck with this stupid 180w limit introduced in last gens by msi.

 

I know you guys are deep into the discussion about the higher end maxwell gpus, but what about the 840m?
I'm just wondering because I'm mostly a mediocre gamer who mostly plays League and CS:GO, and looking for the best bang of the buck and the 840m seems to be the new 740/750m.. If I stand corrected.
Do you guys think the new Lenovo Z40 would come out with a price range of $700 with the 840m in it?

 

It will be a direct replacement for the current ones.

 

Another notebook listed with GTX 860M. Asus G750JM
http://www.amazon.co.uk/G750JM-T4049H-17-3-inch-Notebook-i7-4700HQ-Bluetooth/dp/B00I1BRDVO

 

Hello Maxwell. :thumbsup:

GT 840M:
[x] confirmed Maxwell (GM108)
[x] confirmed 64bit bus
[x] confirmed 28nm.

But look at those clocks. The cores is running 1124MHz.

 

what ? 10 char

 

That should crush the 740m GK208, i want to see the 128 bit 840m

By the way, 576 SP?

 

There is a review of GT 840M out now.
Asus ASUSPRO B551L: Back to business

To avoid confusions in the discussions, compare the Asus with GT 840M with either Sony Vaio Fit with 740M or Dell Vostro 5470 with 740M.
They both run the same crappy dual core @ 1.8Ghz (without turbo boost) and have a agressive clocked GT 740M with 64bit.

In average GT 840M (GM108) is around 35% faster than GT 740M (GK208) :thumbsup:

Spoiler

Dirt 2:
81,1/73.2 = 10.8%

The Last Remnant:
68,5/52,6 = 30.2%

Resident Evil 5:
88/65,7 = 34%

Street Fighter IV:
96,4/80,9 = 19.2%

STALKER:
84/67 = 25.4%

Hard Reset:
55,3/47,5 = 16.4%

MAfia 2:
49,6/35,8 = 38.5%

Alien vs Predator:
46,6/26,6 = 75.2%

Sniper Elite V2:
34,5/28,2 = 22.3%

Tomb Raider:
33,7/24,3 = 38.7%

GRID2:
63,3/45,1 = 40.4%

Metro Last Light:
33,3/21,7 = 53.5%

Total: 404.6/12 = 33.7
34%

Yeah, 576 CUDA cores. Something I thought was only for GTX 850M.
GT 845M is said to have 128bit. But not confirmed

 

Man, thanks for all these answers/finds haha. Still, looks like my Y410p equipped with the 755m beats the 840m . Also looks like even the DDR3 version of the 750m benchmarks better than it (840m) in most cases, unless I'm wrong and the Inspiron has a DDR5 version of the 750m.

 

Yes your GT 755M looks better than GT 840M. But note that the Asus was tested with a poor CPU without turbo boost while your CPU is probably better so that will have a big impact on FPS in many of those games

Wait for GT 845M which is said to be 128bit. Then we will see. Not to mention GTX 850M and GTX 860M (GM107).
If GTX 860M is clocked as high as this chip, which is running whopping 1124MHz, we must be looking at performance better than GTX 770M

 

Hopefully there'll be a 14" maxwell laptop coming out soon aswell so I can put my old lenovo g460 into retirement... An asus g46 refresh with maxwell hopefully xD

 

Lol, this 840M really disappoints me, 16GB/sec memory bandwidth and 1124MHz Core speed . It is definitely not going to be an efficient GPU, an efficient GPU has at least 128bit memory bus and lower clocked core speed. After all these the earlier mentioned 30W TDP might going to be true .

 

Yeah definitely. But I'm mostly on a poor college kid budget, and for $636 (USD) for a practically new Y410 with a 755m and i7 is pretty darn good. And considering the Lenovo Z40 will have only the 840m and thats probably the best price for my budget, the Y410 still compares with it .

I do want to see though what the GT 845M looks like and the GT 860m (the new Y50 will have it).

 

Yeah gamers should atleast pick a 128bit card. I don`t think GM108 is very gamer friendly anways, but GT 845M should be better. If they add 128bit bus or use GDDR5 instead of DDR3.
Frankly GM107 should be what those with little cash should aim for. Im sure GM107 have much more L2 cache than GM108 which should help out a lot with games. I don`t think they will be expensive even though its GTX cards.

GM107 is low end, GM108 is entry cards. You can game 768p with them, but don`t expect more.

 

Yepp Cloudfire, exactly what I need, 1366x768 gaming with Ultra settings. I'd like a 850M or 860M to have, but I'm afraid not many Ultrabook will get these beasts and even than with 40W TDP GPU they going to be noisy and hot. From Maxwell I was expecting a good Ultrabook GPU as the Radeon 8750M, but with more juice, around 3000 3DMark11 points. I'll keep my eyes open for 845M with 128bit bus, but if consumes over 30W, that is too much.

 

Wouldn't a 840m suffice your needs, Atom? It seems like it'll be able to play things at pretty high settings for 768p if its a better 740m, which is better than a 8750m. Not only that, but you'll probably be able to find it in relatively smaller laptops. (14" and under).

 

we need a gpu-z screenshot of this gtx 860m, if it's better than the 770M, that would be great

 

Agree, it does look like that to me too. They tested all the games in 768p and all of them were over 30FPS while most was 60+FPS. Even when that Asus also had a crappy CPU.
I think with a better CPU, you are good to go on res that low.

There is already a GPU-z ready for me to see/post. But it still locked down by payment wall. We need to give it time. It will be leaked soon I hope.
I`m actually maybe thinking about replacing my GTX 770M SLI with GTX 860M SLI and toying around with them until I sell my notebook and buy a new one with GTX 880MX. But I need to see it first

 

the clocks are gonna explain us everything

 

People, I have just understood that with better powerefficiency in Nvidia Maxwell maybe it gonna drain battery lesser so laptop manufacturers would finally stop using that Optimus thing on a gamer's notebooks? I would really enjoy this actually. Why to built Optimus at all on a notebook which is lying on the desk 99% of its time???

Maybe lets start a petition to MSI of some kind?

 

What's wrong with optimus ? Sure there are some issues but nothing that can't be solved ...

Sent from my LG-D800 using Tapatalk

 

Performance wise, yes, but the 8750m has only 17W TDP, the 840M definitely more with those awful specs, maybe 30W. Almost twice the TDP for few hundred more 3DMark 11 points? No way, it is sad Nvidia only for the high-mid range optimized the good performance/watt ratio and in the lower segments Radeons will stay better.

 

+1
never saw s.one saying that optimus bugs a lot..

 

No bugs for Optimus. But it certainly somewhat decreases performance in comparison with single one and I prefer to have all settings opened in Nvidia Control Panel

 

Well the asus with 770m without optimus scores less than an msi using it in 3dmark11..
Are you sure it does lower perfs ?

 

Any effects it has on performance is marginal. Where it suffers is in features like multi displays and max resolutions since the dedicated is slaved to the integrated's output.

 

Yeah, at least it seemed like it is earlier. I don't see why would it be changed. 660M was better on Asus G75 than on MSI for example.
For me, I want to increase display's refresh rate higher than 60.

 

G750 series are gonna get optimus as far as we can see in videos of the JZ model

 

That and also you can't over clock your LCD I believe unless things have change in the past year.

Sent from my LG-D800 using Tapatalk

 

8570M def doesnt have a TDP of 17W.
Radeon 7730 which 8570 is based on, have a TDP of 50W.
The difference is that 8570M runs at 775MHz/900MHz while 7730 runs 800MHz/1100MHz.

Compare that with GTX 750 Ti with TDP of 60W
GTX 750 Ti runs at 1085MHz/1350MHz while GT 840M runs at 1124/1000MHz.

I`m not sure what TDP is correct on the two of them, but the TDP will be a little higher on the GT 840M but I don`t think it will be much of a difference.


The GT 840M beats 8750M by 20% according to the test that was posted. I calculated the average. A 64bit GPU vs a 128bit GPU. If that isnt good enough, you should def aim for GT 845M with 128bit. We are maybe talking 10W more as your 8750M but massively better.

 

Only 20%? is not the 740m better than the 8750m? then the 840m should be at least 35% better than the 8750m

 

Interesting

 

I would ignore 3DMark11 and check game benchmarks.

 

You are probably looking at the 128bit GT 740M (GK107). Remember that 8750M is 128bit too.

 

No, i am talking about all the benchmark list from notebookcheck where 90% of the tested 740m were in fact the 64 bit ones an still beat the 8750m

 

Or, if you really want a lower TDP, maybe try the (hopefully to be released) 835M, that should have the same TDP but better performance.

Also, all that I've read indicates that the 860M will have a 128-bit bus. WHY? Why not make it 192-bit and let the card perform to its full potential? That would add to its value (even if the have to increase the price a bit to make the bus 192-bit) and give it a very good chance to solidly outperform the 770M. C'mon nVidia, do it. Or are they only going to do that to 20nm Maxwell to increase the performance gain, to milk 20nm more?

 

I am not sure about 8570M, but 8750M was a new GCN core like the 8870M. So these are not re-brand GPUs from the previous 7xxx series, that was only Anandtech bull. The power consumption according to the Notebookcheck is slightly below the old HD 7670M and that has similar as 5650M which is between 15-19W. Besides notebookcheck I also measured power consumption from wall (with a power meter) and together with 17W Intel processor consumed less than a 35W AMD APU!

8750M is not slower than 740M, Notebookcheck tests are based on the first 8xxxM drivers. The performance greatly improved with newer drivers due to it was a new GCN core and got better optimization, same thing with 8870M... As Cloudfire calculated, I also do not think more than 20% lead for 840M. If the 840M would consume also only 17W, than that is actually nice lead, but according to the specs it is not the case. My hope is the 845M with 128bit bus...

 

So then, are there any 8750m reviews (from profesional pages or users) with the new drivers?

 

Maybe that will be the 865m.

Beamed from my G2 Tricorder

 

Place your bets here!
840m 512 cores @ 64 ddr3
845m 512 cores @ 128 ddr3
850m 640 cores @ 128 ddr3
860m 640 cores @ 128 ddr5

 

I belive the hungarian site what cloudfire is linked was using a newer driver in the HP Probook 450 or here it is against 640M;
Dirt shodown avarage 56FPS for 8750M and 42FPS for 640M
Batman Arkham avarage 57FPS for 8750M and 41PFS for 640M

So if notebookcheck say 8750M is equal or less than 640M that is wrong.

 

I think maybe notebookcheck should update the 8750m page, and yes, in fact i have been doing some search and you are both completely right, 8750m has improved with drivers and is slightly better than 740m

All this questions come because in my country (Spain) there is a Lenovo g510 with the m265 (the same card as 8750m) , i7 4702MQ, 6GB and 320GB HDD (yeah that hdd is crappy) for 600€, and i am doubting about purchasing it or wait to the 840/850/860m to come because i am leaving at the end of march to England for 3 months and my old Asus M50VN is crying for a replacement

 

I believe 860M will have the best performance/watt ratio and whatever is under won't be so impressive from Nvidia. For example the desktop 750 already less efficient as the 750 ti.

marcos669
If you planning to buy a 15.6'' laptop, I would wait for something with 860M, there 40-45W is not a big concern as in 14'' Ultrabook category.

 

As i said it just a matter of time, if Maxwell notebook series is announced 12th of march as Cloudfire said, i just hope that the laptops are out that same day

 

I wonder if they are gonna try getting a gm200 into a notebook

Sent from my LG-D800 using Tapatalk

 

You are looking at it wrong (3DMark11 =/= Gaming)

Here are two review:
Asus with GK107 128bit
MSI with GK208 64bit

With the few games we can compare:
Starcraft 2:
GK107: 51.9FPS
GK208: 42.7FPS

Tomb Raider:
GK107: 35.3FPS
GK208: 23.7FPS

The GK208 is even running at 1033MHz while GK107 is at 895MHz. 128bit GK107 is still beating the living crap out of it.
That is why it is very impressive that a GM108 64bit is beating a GCN 128bit by 20%. With a 128bit GT 845M, we are looking at a murder. That is where the efficiency will show.

Nice test you made. +rep

But remember that TDP is not the same as power consumption. Just because the GPU draw less than 20W in your test, doesn`t make it a >20W TDP GPU.
8750M (which I spoke about in my previous post but misspelled it 8570M) is called Mars but it is 100% based on 7730 aka GCN 1.0. It runs just about the same clocks, so you can`t expect to slice 47W down to 17W with lower voltage. No way. Not even 50% down. 8750M is most likely somewhere around 25-30W TDP thanks to lower voltage and less ROPs.
I`m sure you will might equally if not better power consumption results with GM108 with 128bit if that ever gets released. But the TDP will be higher.

Wishful thinking but no way in hell
GM200 will be higher than 256bit anyways, and MXM modules we use in our notebooks does not support higher than 256bit. Not exactly the reason why we will never see it, but its another reason non the less.

Actually not a bad bet. Seems legit to me :thumbsup:

 

I hope you are right and that is the case. Than I can have a new efficient Ultrabook soon, which capable for 3000+ 3DMark 11 points and gaming in 768p ultra settings .

 

Well you saw the difference between 128bit and 64bit in the example above. The 128bit was even clocked lower (less TDP) but still came 40% over a higher clocked 64bit

 

Hey Atom Ant, I just found a potential Ultrabook for you with GT 845M. It is listed at 740 Euro.
Overzicht gegevens Asus X550LD-XX173H -> 90NB04T2-M02590
http://www.redcorp.com/asustek-computer/consumer-notebook/notebook-x550ld-xx173h-be-core-i7-4500u-8gb-500gb-dvdrw-15-6in-hd-win8/90nb04t2-m02590/product-details/8881k141.aspx#.Uw0OU4W2weE

 

Considering what we know from the GTX 750 Ti, what do you think the desktop Maxwell GTX 860 or whatever it will be called will be like? I'm hoping to build a PC later this year.