Originally Posted by vinea
There's generally good times and bad times to buy certain tech.
Agree with here. I waited 2 years to get an iPhone. I wanted double the CPU, double GPU, double the RAM and double the storage from the original iPhone and even iPhone 3G. It was tough waiting, but it was worth waiting for. The iPhone 3GS is nice sweet spot phone that'll last awhile. It'll be obsolete this July, but it does things smoooth and it has just enough storage (32 GB) for my needs.
It was really really hard to wait. And Apple went away from the aluminum design! Wasn't happy about that.
I may get an iPad anyway but $500+ is a lot for a device if I know that the heart of the thing is already obsolecent. I will likely only buy it if I'm actively developing for it. Otherwise I'll just continue to target the iPhone and test against the iPad simulator.
I'm waiting. Not an early adopter. The iPad won't be really mature until version 3. Right now, it's a really nice machine for coach and bedroom surfing, maybe as portable if you have desktop, so it will have its place. But it won't come into its own until version 3.
The A9 has a shallower pipeline so it does more per clock than the A8. It has OOE that also allows it to do more per clock. With a shallower pipeline the A9 also is more thrify on power...mispredicted branches waste more power (and performance) on a deep pipeline than a shallower one.
The OOE allows it to do more per clock. The shallower pipeline allows it to use less power, but also decreases its clock potential. The longer pipeline allowed the A8 to clock higher. Putting in beefier branch prediction and OOE hardware made it use more power. Generally, A9 chips will be on <45 nm fabs while A8 fabs are on 65 nm fabs. All the tradeoffs resulted in a 25% improvement in performance (2 DMIPS/MHz to 2.5). Well, if the A9 is on the same fab process, it will be an interesting tradeoff in perf/watt between the two.
The Cortex-A8 in the iPhone 3GS was a bigger jump from ARM11 in the iPhone 3G than this.
So say the difference was that the dual core A9 2011 iPads have 3rd party multitasking enabled in iPhone OS 5.1 in late 2011 whereas the single core A8 2010 iPads do not without jailbreaking.
Still don't care what CPU the 2010 iPad runs? More the fool you then. It's not a geek compulsion as much as being a knowledgable consumer.
Well, like me, I was iPhone-less for 2 years while others were using them for 2 years running. I didn't get the pleasure for 2 years and had to stick with my Treo 650 (ugh). It really depends on what type of buyer one is. Certainly for you and me, we should wait, but for others, buying now and buying again in 2 years is certainly an option. It's fairly inexpensive (when compared to an Apple laptop or desktop), so shorter refresh cycles will be more common for folks.