iPhone A7 Chip Benchmarks: Forget the Specs, It Blows Everything Away
We just ran benchmarks on Apple's new iPhone 5S, revealing that, yup, this is the dopest smartphone silicon ever made. This thing freaking churns, crushing every other smartphone out there on both computational power and graphics. But if you look at common specs like core-count and clock speed for the hardware, you'd never know it.
By now, it's no mystery that specs aren't the whole story. Intuitively, we know that the quality of a smartphone is just as reliant on its industrial design and the quality of the software it runs. But it goes deeper than that: the traditional "specs" distract us from what a gadget's guts actually do, and from a technological point of view, they distract us from the advancements that are actually making a product better.
Apple's iPhone design is a masterpiece, and iOS 7 shows that Apple's got a mastery of operating systems as well, more or less. What's not as well-known is that Apple's a leader on guts as well. Here's a look at what the guts can do and how Apple beat the pack. . . .
And the iPhone's graphics performance is spectacular: 37-frames per second, more than twice the iPhone 5's 14 fps. It'a also significantly faster than the next-best US smartphone, the Motorola Moto X, which clocks in at 25 fps. In short, the iPhone 5S's graphics powers are ready for the craziest games that'll be coming out in the years to come. . . .
These aren't the only benchmarks out there, but they're reflective of what nearly all tests are finding: The iPhone 5S has the best measured performance of any phone.
The truth about cores, clock speeds, and battery life . . .
Here, we check back in with AnandTech, where Anand Shimpi drops knowledge. Turns out the specs we're getting fed by manufacturers are a bunch of bullor at least only tell a small fragment of the story. "I always thought the transition from 2 to 4 cores happened quicker in mobile than I had expected," . . . .
Apple's an early-adopterof silicon design
So how is Apple getting much better performance than everyone else? With the iPhone 5's A6, Apple turned to custom-designed chips with custom-designed cores based on ARM designs to improve results. With the A7, Apple continues this trend by adopting industry-leading technology.
What Apple's 64-Bit Architecture Really Means For Your iPhone
So let's turn to one spec Apple did announce on stage: The new 64-bit CPU, which replaces the 32-bit predecessor. This is the key, but not in the way you might think it is. As Anand and others point out, 64-bit transition doesn't really start making a difference until Apple starts building phones with more than 4GB of RAM, which based on current trends, won't happen for years.
The reason Apple's 64-bit future-proofing matters today is that it requires Apple to adopt an entirely new underlying processor architecture. A7's CPU ditches the 20-year-old foundation of the ARMv7 "instruction set" (ISA) , and goes with the ARMv8 design, which was released in 2011 and represents an entirely new system. . . .
According to Gruber's frequently reliable sources, switching to ARMv8 is responsible for a 15-20-percent improvement in performance while simultaneously improving battery life.
Apple is the first to implement ARMv8, and it makes total sense that this newer technology is producing better results than the older technology. But you won't see that show up on most spec sheets. Without going down another rabbit hole, it shouldn't surprise you to learn that the new supercharged GPU owes its impressive performance to a GPU no one else has used yet.
Sometimes people like to harp on Apple for stagnating, but the company's progress under the hood shows that it's just not true. For all the huge specs (and huge screens) Apple's competitors like to throw around, Apple remains a year ahead on the only metric that really matters: How well the phone actually performs.
Gizmodo iPhone 5s