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View Full Version : Βig Dilemma, Asus g750JZ or Asus g751JT ?



Pasteli
11-19-2014, 01:32 AM
I find at same price Asus g750JZ and Asus g751JT and I do not know what to choose.

Specifically Specs in Greece shops:
g750JZ: i7-4710HQ - GTX 880m 8gb ddr5 – 16GB Ram – HDD 1TB + SSD 128GB 1650 euro
g751JT: i7-4710HQ - GTX 970m 3gb ddr3– 16GB Ram – HDD 1TB + SSD 128GB 1700 euro

From one side g750 has better GPU its more tested to time for weak points and on the other side g751(880m) has worst GPU (970m) but has more feature like 4k or DSR and has better screen IPS Matte compared to TN Matte g750. I am confused please help with arguments.

Thanks in advance

bookedirl
11-19-2014, 01:35 AM
970 > 880... Problem solved. I think you need to research that some more! Get the JT but make sure there's no other issues like others are posting in forums.

BRSxIgnition
11-19-2014, 01:38 AM
970 is better than the 880m by 30% - what's there to decide?

Even with my issues, I wholeheartedly recommend this laptop.

Pasteli
11-19-2014, 01:58 AM
Τhanks very much for the prompt replies. These links gpuboss (http://gpuboss.com/gpus/GeForce-GTX-970M-vs-GeForce-GTX-880M) and this Passmark (http://www.videocardbenchmark.net/compare.php?cmp[]=2866&cmp[]=2850&cmp[]=2981) are false? Bookedirl suspicion usually problem in the audio for g750JT?

bookedirl
11-19-2014, 02:04 AM
Τhanks very much for the prompt replies. These links gpuboss (http://gpuboss.com/gpus/GeForce-GTX-970M-vs-GeForce-GTX-880M) and this Passmark (http://www.videocardbenchmark.net/compare.php?cmp[]=2866&cmp[]=2850&cmp[]=2981) are false? Bookedirl suspicion usually problem in the audio for g750JT?


That benchmark is for 880M 8GB vs 970 6GB models. The 970M in these laptops has 3GB and the 880M I believe has 4GB.

Issues so far seem to be related to sound mostly but there are a few others. Scroll down a bit to see some of the other threads.

Pasteli
11-19-2014, 02:15 AM
That benchmark is for 880M 8GB vs 970 6GB models. The 970M in these laptops has 3GB and the 880M I believe has 4GB.

Issues so far seem to be related to sound mostly but there are a few others. Scroll down a bit to see some of the other threads.

I can't find any benchmark with gpu 880m 4gb and 970m at 3gb. In Greece is available with 880m 8gb ddr5 according shops descriptions.

Also nvidia website seems be better 880m. Check: 880m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-880m/specifications) and 970m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-970m/specifications)

Issues specific to jt Version or for all versions?

Display is much better on g751 or slightly?

hmscott
11-19-2014, 06:55 AM
I can't find any benchmark with gpu 880m 4gb and 970m at 3gb. In Greece is available with 880m 8gb ddr5 according shops descriptions.

Also nvidia website seems be better 880m. Check: 880m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-880m/specifications) and 970m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-970m/specifications)

Issues specific to jt Version or for all versions?

Display is much better on g751 or slightly?

Pasteli, on some benchmarks the 970m is better, and on some the 880m is better. A better comparison would be the 980m, but the 970m is within the range of the 800m and you likely won't notice the difference in games. 3GB is a bit small, but still large enough to do HD textures in 1080p mode which is the native resolution on the built in display.

The screen is IPS, which for most will be better, and just as good for the rest - response times and pixel persistence considered

The real win is that the G751JT/JY don't have Optmus, just a single direct connection to the Nvidia GPU :)

The G751's don't have a removeable battery, technically not an issue unless you like to take long trips and run on battery - you can't get extra batteries and swap them in /out. The Mac has had an internal non-user replaceable battery for a long time, and mostly works ok that way.

The new G751 is the way to go moving forward, you only need decide whether to pop for the full 980m... if you only do this once every 3 years I think it is worth going for the 980m 4GB.

Either one is a great laptop :)

Please come back and let us know what you end up getting and how you like it.

Arnas
11-19-2014, 10:25 AM
From that I heard, G751 ips blow away non ips display from g750. Notebookcheck.net said that nvidia 970m is on average 15% faster than 880m. In few games they equal, but on most 970m win. Few examples : crysis 3 very high detail smaa×2 and both score 33fps. Metro last light very high, nvidia 970m 53fps, 880m 42. I go for Asus g751jt.

Pasteli
11-19-2014, 06:07 PM
Pasteli, on some benchmarks the 970m is better, and on some the 880m is better. A better comparison would be the 980m, but the 970m is within the range of the 800m and you likely won't notice the difference in games. 3GB is a bit small, but still large enough to do HD textures in 1080p mode which is the native resolution on the built in display.

The screen is IPS, which for most will be better, and just as good for the rest - response times and pixel persistence considered

The real win is that the G750JT/JY don't have Optmus, just a single direct connection to the Nvidia GPU :)

The G751's don't have a removeable battery, technically not an issue unless you like to take long trips and run on battery - you can't get extra batteries and swap them in /out. The Mac has had an internal non-user replaceable battery for a long time, and mostly works ok that way.

The new G751 is the way to go moving forward, you only need decide whether to pop for the full 980m... if you only do this once every 3 years I think it is worth going for the 980m 4GB.

Either one is a great laptop :)

Please come back and let us know what you end up getting and how you like it.

I Have 2 more questions

1) The optimus is a problem even when the laptop is plugged in?
2) I cant play 4k games in future with g750?

andreacos92
11-19-2014, 06:14 PM
The real win is that the G750JT/JY don't have Optmus, just a single direct connection to the Nvidia GPU :)


Should be the G751JT/JY that don't have Optimus :)


I Have 2 more questions

1) The optimus is a problem even when the laptop is plugged in?
2) I cant play 4k games in future with g750?

1) Some people have problem also with laptop plugged in and no battery.
A friend of mine with G750 and 880m isn't able to play some games because they go with the Intel integrated GPU :/

Pasteli
11-19-2014, 06:17 PM
From that I heard, G751 ips blow away non ips display from g750. Notebookcheck.net said that nvidia 970m is on average 15% faster than 880m. In few games they equal, but on most 970m win. Few examples : crysis 3 very high detail smaa×2 and both score 33fps. Metro last light very high, nvidia 970m 53fps, 880m 42. I go for Asus g751jt.

Notebookcheck indicate generally from 880m. There are several versions of GTX 880m. Particular I look for gtx880m with 8gb DDR5. So for this I have query which is better total choice.

hmscott
11-19-2014, 06:24 PM
I Have 2 more questions

1) The optimus is a problem even when the laptop is plugged in?
2) I cant play 4k games in future with g750?

Pasteli, good questions :)

1) Optimus takes a simple need, and turns it into a complex disaster of epic proportions, and it has been this way for years.

What Optimus should do is one thing: On AC run all GPU requests to the Nvidia GPU, on Battery run all GPU requests to the Intel GPU. Simple.

What Optimus actually does:

Runs all video through the Intel iGPU on the same chip as the CPU - adding to heat and reducing the headroom for running the CPU.

Because all video runs through the Intel iGPU on AC and Battery, you can't use the Nvidia controls to set the resolution, refresh rate, video / image color balance, and anything that has to do with the video out portion of the Nvidia controls.

Optimus limits refresh to 60hz, so you can't change the display refresh higher as it will normally allow. No 100hz on the Chi Mei, no 70 hz on the AUO, no change for any panel above 60hz.

On AC, instead of defaulting to the Nvidia GPU, you are defaulted to the iGPU - for all Windows graphics all GPU requests go through the Intel iGPU - including Internet explorer and every tool that uses Windows graphics calls to display streaming video and any graphics display. That iGPU usage heats up the CPU die, which runs the heat controlled CPU fan at higher speed than needed - maybe audibly.

On AC, you have to configure manually each application not in the general database of 3D application settings to use the Nvida GPU. You do this by right clicking on the application icon and selecting the GPU to run on. Or, you can do this via the Nvidia Control panel Applications Settings tab in the 3D settings section. You can also set the Global setting to use the Nvidia GPU. Many applications ignore these settings and default to use the default GPU it finds with normal Windows graphics calls - which is the Intel iGPU.

On battery, it works the same.

2) You can play any game at any resolution that the configuration allows. Some intensive games will require more VRAM than 3GB/4GB for the highest resolution textures, like 4k. And, some intensive games at 4K will have too high of bandwidth requirements than a 970m/980m can provide - but those are the best GPU's available now, so you really don't have an alternative. For now the G751's represent the best available.

Remember, the game makers know their gaming population hardware - they will make a settings configuration available that will work on your 970m/980m 3GB/4GB cards for a long time to come. And, as performance requirements increase, lower texture settings will put less stress on the GPU - so the 3GB/4GB configurations probably match the GPU power / capabilities better than the higher 6GB/8GB configurations - yes they have more space for high resolution textures, but on 4K that will demand more bandwidth than the 970m/980 will be able to handle so those higher VRAM configurations might need to reduce their texture settings just to be able to keep FPS up to desired levels - negating the value of the larger VRAM - who knows? :)

Pasteli
11-19-2014, 06:33 PM
Should be the G751JT/JY that don't have Optimus :)


1) Some people have problem also with laptop plugged in and no battery.
A friend of mine with G750 and 880m isn't able to play some games because they go with the Intel integrated GPU :/

If this is really that is a big problem. But I saw that all versions 800 series have optimus check 860m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-860m), 870m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-870m) and 880m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-880m). So also G750JT/JY will have optimus, indeed? In g751 not include optimus?

Thanks

hmscott
11-19-2014, 06:39 PM
If this is really that is a big problem. But I saw that all versions 800 series have optimus check 860m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-860m), 870m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-870m) and 880m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-880m). So also G750JT/JY will have optimus, indeed? In g751 not include optimus?
Thanks

Pasteli, the G751JT/JY don't have Optimus.

The G751JM has Optimus.

The G750JM/JS/JZ have Optimus.

The G750JW/JX/JH don't have Optimus.

Asus dropped Optimus for the 970m/980m models of the G751 :)

bookedirl
11-19-2014, 06:44 PM
If this is really that is a big problem. But I saw that all versions 800 series have optimus check 860m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-860m), 870m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-870m) and 880m (http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-880m). So also G750JT/JY will have optimus, indeed? In g751 not include optimus?

Thanks

There is no G750JT/JT hmscott meant to say G751 JT/JY. G751 models do NOT have optimus. The G750 Series have optimus and my brief time using a G750 it was a PIA. Honestly I would go with the G751 mode and then the only choice you have to make like hmscott suggested is either going with a 980M or 970M. Personally for me I went with a G751 JT without the SSD and bought my own SSD to save money. I will probably buy another model next year or so since I like to have the "best" without spending $2500 on the top tier model.

hmscott
11-19-2014, 06:47 PM
There is no G750JT/JT hmscott meant to say G751 JT/JY. G751 models do NOT have optimus. The G750 Series have optimus and my brief time using a G750 it was a PIA. Honestly I would go with the G751 mode and then the only choice you have to make like hmscott suggested is either going with a 980M or 970M. Personally for me I went with a G751 JT without the SSD and bought my own SSD to save money. I will probably buy another model next year or so since I like to have the "best" without spending $2500 on the top tier model.

bookedirl, thanks for pointing that out, but where did I say G750JT/JY, I can't find it - I would like to correct it :)

bookedirl
11-19-2014, 06:51 PM
Post #7, 3rd Line!

andreacos92
11-19-2014, 06:52 PM
bookedirl, thanks for pointing that out, but where did I say G750JT/JY, I can't find it - I would like to correct it :)

here (http://rog.asus.com/forum/showthread.php?53828-%26%23914%3Big-Dilemma-Asus-g750JZ-or-Asus-g751JT&p=451186&viewfull=1#post451186)
:)

hmscott
11-19-2014, 06:53 PM
Post #7, 3rd Line!


here (http://rog.asus.com/forum/showthread.php?53828-%26%23914%3Big-Dilemma-Asus-g750JZ-or-Asus-g751JT&p=451186&viewfull=1#post451186)
:)

bookedirl / andreacos92, thanks!, fixed :)

Zip1
11-19-2014, 08:12 PM
Be careful NOT to generalize that "G751 models do NOT have optimus" (post #15)

The G751JM does have Optimus.

andreacos92
11-19-2014, 09:42 PM
We can say "G751 with Maxwell GPU (970m & 980m) don't have Optimus"

G751JM has GTX 860m and has Optimum.

Pasteli
11-19-2014, 10:10 PM
Pasteli, good questions :)

1) Optimus takes a simple need, and turns it into a complex disaster of epic proportions, and it has been this way for years.

What Optimus should do is one thing: On AC run all GPU requests to the Nvidia GPU, on Battery run all GPU requests to the Intel GPU. Simple.

What Optimus actually does:

Runs all video through the Intel iGPU on the same chip as the CPU - adding to heat and reducing the headroom for running the CPU.

Because all video runs through the Intel iGPU on AC and Battery, you can't use the Nvidia controls to set the resolution, refresh rate, video / image color balance, and anything that has to do with the video out portion of the Nvidia controls.

Optimus limits refresh to 60hz, so you can't change the display refresh higher as it will normally allow. No 100hz on the Chi Mei, no 70 hz on the AUO, no change for any panel above 60hz.

On AC, instead of defaulting to the Nvidia GPU, you are defaulted to the iGPU - for all Windows graphics all GPU requests go through the Intel iGPU - including Internet explorer and every tool that uses Windows graphics calls to display streaming video and any graphics display. That iGPU usage heats up the CPU die, which runs the heat controlled CPU fan at higher speed than needed - maybe audibly.

On AC, you have to configure manually each application not in the general database of 3D application settings to use the Nvida GPU. You do this by right clicking on the application icon and selecting the GPU to run on. Or, you can do this via the Nvidia Control panel Applications Settings tab in the 3D settings section. You can also set the Global setting to use the Nvidia GPU. Many applications ignore these settings and default to use the default GPU it finds with normal Windows graphics calls - which is the Intel iGPU.

On battery, it works the same.

2) You can play any game at any resolution that the configuration allows. Some intensive games will require more VRAM than 3GB/4GB for the highest resolution textures, like 4k. And, some intensive games at 4K will have too high of bandwidth requirements than a 970m/980m can provide - but those are the best GPU's available now, so you really don't have an alternative. For now the G751's represent the best available.

Remember, the game makers know their gaming population hardware - they will make a settings configuration available that will work on your 970m/980m 3GB/4GB cards for a long time to come. And, as performance requirements increase, lower texture settings will put less stress on the GPU - so the 3GB/4GB configurations probably match the GPU power / capabilities better than the higher 6GB/8GB configurations - yes they have more space for high resolution textures, but on 4K that will demand more bandwidth than the 970m/980 will be able to handle so those higher VRAM configurations might need to reduce their texture settings just to be able to keep FPS up to desired levels - negating the value of the larger VRAM - who knows? :)

Principle, Thank you very much for the very analytic answers. I have four additional questions for confirmation.

1)Optimus work only when the laptop is not plugged in, right?

2)When I run a program and do not want to run with processor gpu I can manually choose to run with Nvidia Gpu, correct?

3)When I surfing on the internet I cant choose manually Nvidia Gpu to work , right?

4)Accordance with what you said about 4k resolution gaming is better to choose g750ZY with Gtx880m 8gb vRam because It has more vRam and more bandwith, correctly? Ceck Compare (http://www.game-debate.com/gpu/index.php?gid=2536&gid2=2151&compare=geforce-gtx-970m-3gb-vs-geforce-gtx-880m-8gb)

hmscott
11-19-2014, 10:23 PM
Principle, Thank you very much for the very analytic answers. I have four additional questions for confirmation.

1)Optimus work only when the laptop is not plugged in, right?

2)When I run a program and do not want to run with processor gpu I can manually choose to run with Nvidia Gpu, correct?

3)When I surfing on the internet I cant choose manually Nvidia Gpu to work , right?

4)Accordance with what you said about 4k resolution gaming is better to choose g750ZY with Gtx880m 8gb vRam because It has more vRam and more bandwith, correctly? Ceck Compare (http://www.game-debate.com/gpu/index.php?gid=2536&gid2=2151&compare=geforce-gtx-970m-3gb-vs-geforce-gtx-880m-8gb)

Pasteli,

1) No. It works all the time, hence the major suckage - all the time.

2) If it works, yes, but some apps don't recognize the setting, and only see the Intel GPU - no matter what you do.

3) No. IE runs only on Intel iGPU, no Wiindows program will respect the Run as Nvidia setting. Firefox / Chrome may be set.

4) Except you are stuck with the 880m, which isn't as fast as the 980m, so the extra VRAM on the 880m will likely go to waste on 4k - pushing around all those pixels at 4k and high-res textures might be beyond the 880m throughput cap[ability to utilize the hi-res textures that would fit in 8GB VRAM - your FPS would be too low.

Pasteli
11-19-2014, 10:52 PM
Pasteli,

1) No. It works all the time, hence the major suckage - all the time.

2) If it works, yes, but some apps don't recognize the setting, and only see the Intel GPU - no matter what you do.

3) No. IE runs only on Intel iGPU, no Wiindows program will respect the Run as Nvidia setting. Firefox / Chrome may be set.

4) Except you are stuck with the 880m, which isn't as fast as the 980m, so the extra VRAM on the 880m will likely go to waste on 4k - pushing around all those pixels at 4k and high-res textures might be beyond the 880m throughput cap[ability to utilize the hi-res textures that would fit in 8GB VRAM - your FPS would be too low.

I understand 980m is better but my budget reaches g750JZ w/880m(8gb ddr5) or g751JT w/970m(3gb ddr5). So if you're in my position what would you choose?

Thank you

CoryBee
11-19-2014, 11:29 PM
Get the G751JY. Same price as the G750JZ (I have this one)

Pasteli
11-19-2014, 11:44 PM
Get the G751JY. Same price as the G750JZ (I have this one)

I am from Greece and I cant find it with same price nowhere in Europe. So for this reason I am between g750JZ and g751JT. Can you suggest me a cheap shop in Europe?

hmscott
11-20-2014, 12:39 AM
I understand 980m is better but my budget reaches g750JZ w/880m(8gb ddr5) or g751JT w/970m(3gb ddr5). So if you're in my position what would you choose?
Thank you

Pasteli, in my case I would go with the non-Optimus model, it would have to be the G751JT, but I would find a G751JY configuration that I could stretch for, as it is worth it to me to get that extra performance + VRAM in the JY 980m 4GB.

For me the only other choice would be a G750JH - non-Optimus and clocks in at the 880m performance with Asus Tweak Tool settings for the 780m, and no surprise - that is what I have :)

Either the JT or the JY will be a good step up from the G750JZ.

CoryBee
11-20-2014, 01:43 AM
Is there not one on Amazon at a good price?

Pasteli
11-20-2014, 10:36 PM
Is there not one on Amazon at a good price?

Nop its very expensive

Pasteli
11-20-2014, 10:52 PM
Pasteli, in my case I would go with the non-Optimus model, it would have to be the G751JT, but I would find a G751JY configuration that I could stretch for, as it is worth it to me to get that extra performance + VRAM in the JY 980m 4GB.

For me the only other choice would be a G750JH - non-Optimus and clocks in at the 880m performance with Asus Tweak Tool settings for the 780m, and no surprise - that is what I have :)

Either the JT or the JY will be a good step up from the G750JZ.

Again Hmscott thanks you are very helpful but I read in other forums that "the 970 run with optimus". Check also I read notebookcheck (http://www.notebookcheck.net/NVIDIA-GeForce-GTX-970M.126694.0.html) this “Most of the features are identical to the GeForce GTX 800M series. With the GTX 970M, there can be up to 4 active displays possible, but this will likely decrease due to Optimus”
Are you sure that it works without Optimus?
Because they are very important in my decision

hmscott
11-21-2014, 12:03 AM
Again Hmscott thanks you are very helpful but I read in other forums that "the 970 run with optimus". Check also I read notebookcheck (http://www.notebookcheck.net/NVIDIA-GeForce-GTX-970M.126694.0.html) this “Most of the features are identical to the GeForce GTX 800M series. With the GTX 970M, there can be up to 4 active displays possible, but this will likely decrease due to Optimus”
Are you sure that it works without Optimus?
Because they are very important in my decision

Pasteli, every G751JT/JY owner reports there is no Optimus, not a single one has reported Optimus.

The G751JM has Optimus, as reported by owners.

Nvidia designs their GPU's to work with OIptimus, but not all laptops implement Optimus. Check the G751JT/JY product specs, there is no mention of Optimus.

fidelity101
11-21-2014, 12:14 AM
I've had a chance to play with a G750jz and a G751JY and I'm VERY glad I went with the G751JY. The red backlit keyboard looks nicer. The "finish" of the G751 looks better with the brushed metal on top. The graphics card is just amazing and you only have ONE graphics card to deal with rather than an nvidia AND intel GPU. The battery life is equal on both but the performance on battery is definitely better on the G751.

I've been playing Far Cry 4 for a few hours now and the graphics are incredible!

Pasteli
11-21-2014, 05:34 PM
Pasteli, every G751JT/JY owner reports there is no Optimus, not a single one has reported Optimus.

The G751JM has Optimus, as reported by owners.

Nvidia designs their GPU's to work with OIptimus, but not all laptops implement Optimus. Check the G751JT/JY product specs, there is no mention of Optimus.

Ok, ended.Υou convinced me :) I will buy ASUS G751JT.