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Apple's New A6X iPad Chip Adopts PowerVR SGX 554MP4 Graphics
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Here in the UK it may be worth upgrading for the LTE network speeds, but coverage is patchy and the contracts eye-watering.
I agree. Apple did it in the past when they announced they started shifting around the iPhone product cycle; they offered the iPhone credit program that was proposed and implemented by SJ as a way to show that 'Apple understands customer loyalty' as a way to offset a new product cycle. This really should have been no different.
Most likely loses. The new mali605 is a new design. The sgx544 not much more than a refreshed sgx543.
The SGX554MP is not double everything of the SGX543MP though. In terms of ALU:TMU:ROP ratio I believe it's something like 8:2:2 vs 4:2:2. So an SGX554MP2 vs a SGX543MP3 works out as 16:4:4 vs 12:6:6. Differences in clock speed will changes things, but assuming equal clock speeds, perhaps Apple wanted to emphasize texture and fill rate for the iPhone 5 vs shader performance.
The A4 was a very low risk chip since it uses the same Cortex A8 + SGX535 architecture as in the iPhone 3GS and 3rd gen Touch and the same 45nm process first used in the 3rd gen Touch. The A5 used the same 45nm process as the A4 but changed the CPU and GPU architectures to Cortex A9 and SGX543MP2 so was a higher risk part. The A5X was also a relatively safe chip since the CPU is identical, the 45nm process is the same, and the GPU architecture is also the same architecture just doubled. The A6 was also relatively safe as it uses the proven 32nm process from the 32nm A5 and the same SGX543MP architecture just changing the CPU architecture. The issue with the A6X is that because it is introduced a little over a month after the A6, the A6X was developed directly in parallel with the A6 rather than being based off a proven design. As such when compared to the A5X, everything has changed from a 45nm process to a 32 process, Cortex A9 to Swift, SGX543MP to SGX554MP. That makes it risky.
http://www.chipworks.com/blog/recentteardowns/2012/11/01/inside-the-apple-ipad-4-a6x-to-be-revealed/
There is no extra space saved by using the a SGX554MP2 vs a SGX543MP3. In fact you lose space. The SGX554MP is 8.7mm2 per core while the SGX543MP is 5.4mm2 per core. So a SGX554MP2 takes up 17.4mm2 whie a SGX543MP3 takes up 16.2.
And RAM capacity has little relationship to the SoC die area. In the iPhone the RAM chip(s) is(are) independently stacked on top of the SoC. You can put any size RAM you want. The limitation is RAM technology. I believe the iPhone only uses 1 RAM chip in it's stack and the largest readily available capacity in a single RAM chip is 1GB hence that's what the iPhone 5 uses.
Agreed!! My 3rd Gen iPad was an excellent upgrade, and the 5th gen will be excellent as well, especially seeing how good the 4th gen is.
PowerVR SGZ 554MP4
This sounds like a PowerPC type chip.. perhaps there is hope after all of PowerPC coming back to Apple
This sounds like a PowerPC type chip.. perhaps there is hope after all of PowerPC coming back to Apple
Jesus! So my iPhone 5 is pretty powerful, my PSVITA even more powerful, but the new iPad blows them both out the water!!! Damn. But what are you going to use all that graphical grunt for?
the article on the front page actually shows other wise.
http://www.anandtech.com/show/6426/ipad-4-gpu-performance-analyzed-powervr-sgx-554mp4-under-the-hood
So far, the reviews on Nexus 10 is pretty underwhelming:
http://www.extremetech.com/computin...ometimes-its-possible-to-have-too-many-pixels
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Almost 40% faster...Quite a far cry from an overpriced garbage. You pay for quality. In this case, $100.
also, you quotes the Verge's article above to confirm the battery life on the nexus... but read this on that same article:
They've been playing with it and they cant recommend it.... you dont have it and youre fighting for it lol
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Makes sense.
Process cycles have no saying into the working of a SoC. A process is simply the way the chip is made. True in the end it dictates the potential clock speeds and thermals, but in terms of chip design no. 45nm or 32nm makes no difference during design. The true face of fab process is seen once the chip is made. If its a small chip, a smaller process will drastically decrease power usage and give it low thermals. Also, less real estate; which is good.
As per the A4, yes, you are right, it is the old Cortex A8 architecture found in the 3GS. I forgot about that. Now that I remember, the A4 is just a bundled CPU+GPU. Saves spaces and chip count in the end.
As per the A5, thats entirely new. Better GPU, better CPU architecture. Hell, even dual core GPU integration even though there was no need (at the time since the SGX535 handled everything nicely in the 3GS).
The A6 is still a safe bet like you said (not because of the fab), but because it held to the same GPU but added a core (not as hard) and just integrated hand-made CPU.
Ah yes, I don't know why I didn't see the A6 and A6X parallel development. That can certainly explain why the differences.
I know RAM is separate from the SoC die area, I just figured that with a smaller SoC, maybe they could push in another RAM chip. Anyways, it yes, I checked, the SGX554 is bigger, I didn't know that. Well, perhaps when we go to 28nm we can get a smaller die area.
Ah, nostalgia: remember the G4 advertising about how it reached 1 gigaflop? Now we've got 74 of those in just the graphics processor of a cheap consumer device.
Anyone know how many gflops the PowerVR MBX Lite of the 1st generation iPod touch can do, just so I can cry a bit more?
Such a good looking device. 1st gen iPhone and iPod touch will both always hold a special place in my heart. lol
Where is the microsoft surface tablet in the comparison chart??
I can't wait to see how the ipad 5 will annihilate the gSheeps even further.
I can't wait to see how the ipad 5 will annihilate the gSheeps even further.
Looking forward to the Anandtech review and new GPU benchmarks.
That's pretty much the only site worth reading when it comes to real, in depth evaluations.
His preview shows some interesting things when it comes to raw pixel pushing horsepower.
http://www.anandtech.com/show/6425/google-nexus-4-and-nexus-10-review
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That's pretty much the only site worth reading when it comes to real, in depth evaluations.
His preview shows some interesting things when it comes to raw pixel pushing horsepower.
http://www.anandtech.com/show/6425/google-nexus-4-and-nexus-10-review
This makes me glad I did not trade up my iPad2 for the 3. Now I have to decide if I want to wait until the redesigned iPad Gen5 to see what new things they will add.
Yes, to kill an enemy combatant with the G4 Power Mac, you had to pick it up, lift it over your head, and bring it down hard on the enemy's head. It was neither quick nor easy. With the iPad, all you have to do is ram one of the sharp edges all 76.8 GFLOPS of it into the enemy's throat. How far Apple has come with its weapons technology! (Or so my covert black-ops friends tell me.)
