"new iPad" relative bat life only 41% bettter than a Zenbook?

deputc26

Senior member
Nov 7, 2008
548
1
76
engadget says it is 42.5Wh, (http://www.engadget.com/2012/03/07/new-ipad-vs-ipad-2/) more then some netbooks and equal battery life to some netbooks at a claimed 9-10 hours. Capacity is up by 70% but bat life is unchanged, what is sucking the juice? LTE? no that only makes a claimed 1hr difference, the new GPU? the new screen itself?

This means that the relative battery life is only 41% better than the ASUS zenbook which is a full-on "ultrabook"

http://www.anandtech.com/show/5530/sony-vaio-z2-everything-is-peripheral/5

tablet power requirements only 41% off ultrabook power requirements? This doesn't seem right to me. I bet the "new iPad" has better than claimed battery life, or maybe engadget is wrong...
 

senseamp

Lifer
Feb 5, 2006
35,787
6,197
126
Display backlight is a huge component of power in mobile devices. The higher res display is probably not as efficient in passing the backlight, so they need to compensate by adding more backlight power. You do need to push out 4x the pixels out of the GPU, but I think the display is the main power hog. It is going to be harder to rectify the display power consumption than chip power consumption, which will improve with new process nodes.
 

deputc26

Senior member
Nov 7, 2008
548
1
76
Display backlight is a huge component of power in mobile devices. The higher res display is probably not as efficient in passing the backlight, so they need to compensate by adding more backlight power. You do need to push out 4x the pixels out of the GPU, but I think the display is the main power hog. It is going to be harder to rectify the display power consumption than chip power consumption, which will improve with new process nodes.

I'm not very familiar with the factors that determine panel efficiency, you know of any good resources where I could go educate myself? :)
 

SickBeast

Lifer
Jul 21, 2000
14,377
19
81
Op the reason is surely a combination of everything. The cpu, gpu, new wireless parts, higher resolution and therefore higher demands on the rest of the system, etc.
 

mammador

Platinum Member
Dec 9, 2010
2,120
1
76
Seems a waste IMO.

It's only a marginal upgrade of the iPad 2, and is thicker lol... Apple's two best selling products, in the space of 6-8 months or so, have just been upgrades and little else. they need a phone/tablet that is a major advancement.

Look at it this way, if one has an iPad 2, do they need absolutely to upgrade to an iPad 3?

If I were Cook, I would have brought out a docking station with Ethernet, MDI, etc. ports, and use the enterprise sector as a major target market (along with the consumer sector of course). Ethernet ports would appeal to corporate ICT depts., and allow for better ease of integration.
 

Mopetar

Diamond Member
Jan 31, 2011
8,068
6,656
136
Seems a waste IMO.

It's only a marginal upgrade of the iPad 2, and is thicker lol... Apple's two best selling products, in the space of 6-8 months or so, have just been upgrades and little else. they need a phone/tablet that is a major advancement.

What would actually constitute a major upgrade to you? They hit just about everything on any arbitrary checklist for new features that people wanted.

I honestly can't think of them adding anything at this point that could constitute a major advancement. It's just going to be incremental improvements from here on out, much like with the PC and notebook space.

Look at it this way, if one has an iPad 2, do they need absolutely to upgrade to an iPad 3?

No, but there are more non-tablet users out there than tablet users by far. It's also pretty damned tough to justify a one year upgrade cycle for anything. The people who do get something new every year are enthusiasts and are going to buy something new even if it isn't a 'major advancement'. Right now there's more tablets to be sold by expanding your customer base rather than trying to get existing customers to upgrade or focusing on getting customers from a competitor.

If I were Cook, I would have brought out a docking station with Ethernet, MDI, etc. ports, and use the enterprise sector as a major target market (along with the consumer sector of course). Ethernet ports would appeal to corporate ICT depts., and allow for better ease of integration.

Sounds like something that would move a few tens of thousands of units. Apple is more interested in moving millions of things at this point. If there's really a great market for something like that, I would expect a third party to come out with it. If one hasten't, that would seem to suggest that there's not much of a market for it.
 

runawayprisoner

Platinum Member
Apr 2, 2008
2,496
0
76
engadget says it is 42.5Wh, (http://www.engadget.com/2012/03/07/new-ipad-vs-ipad-2/) more then some netbooks and equal battery life to some netbooks at a claimed 9-10 hours. Capacity is up by 70% but bat life is unchanged, what is sucking the juice? LTE? no that only makes a claimed 1hr difference, the new GPU? the new screen itself?

This means that the relative battery life is only 41% better than the ASUS zenbook which is a full-on "ultrabook"

http://www.anandtech.com/show/5530/sony-vaio-z2-everything-is-peripheral/5

tablet power requirements only 41% off ultrabook power requirements? This doesn't seem right to me. I bet the "new iPad" has better than claimed battery life, or maybe engadget is wrong...

Do note that 10 hours on an iPad means you can play 3D games or HD movies 10 hours straight.

7 hours on a zenbook is like you sitting at the desktop for 7 hours. Try playing a game. It'll shoot down to 2 hours immediately.

As for netbooks, they have much inferior GPUs.
 

SickBeast

Lifer
Jul 21, 2000
14,377
19
81
I think that the next major advancement will be to create tablets that completely replace desktop computers in every way. Every tablet that comes before that point will be an incremental upgrade and they will be little more than fancy toys.
 

akugami

Diamond Member
Feb 14, 2005
5,896
2,185
136
Seems a waste IMO.

It's only a marginal upgrade of the iPad 2, and is thicker lol... Apple's two best selling products, in the space of 6-8 months or so, have just been upgrades and little else. they need a phone/tablet that is a major advancement.

Have you seen the iPad 1? The new iPad is still svelte compared to that brick.

Have you seen 90% of the Android devices and their upgraded versions out there? Minor differences between them hardware and size wise.

Have you seen the touted screen resolution? This is better than most desktop monitors out there in a smaller size. Have you seen the GPU upgrade? Apple's iPad 2 already has a better GPU than nVidia's Tegra 3. The Apple's A5X only widens the performance gap.

Do note that 10 hours on an iPad means you can play 3D games or HD movies 10 hours straight.

7 hours on a zenbook is like you sitting at the desktop for 7 hours. Try playing a game. It'll shoot down to 2 hours immediately.

As for netbooks, they have much inferior GPUs.

Notebook battery life quoted by manufacturers have always been overstated. I only trust battery life claims by reviewers because it puts the battery life and performance in easily quantifiable benchmarks. Example, 4.3 hours playing a video but 6 using office productivity apps which tells me more than some generic 6 hour claim that most notebook OEM's will claim.
 
Last edited:

Dominato3r

Diamond Member
Aug 15, 2008
5,109
1
0
Its seems like most people only think of devices as upgrades if they have a complete re-design. Stupid.