Err going from 6-8 is 33% actually
Please don't mention that I caught Ailuros in the exact same trap a couple of weeks back.
Err going from 6-8 is 33% actually
You can keep the 8 cluster theory if you want, but at around 450 MHz then. My former layman's math shouldn't be completely worthless.
[/QUOTE]Please don't mention that I caught Ailuros in the exact same trap a couple of weeks back.
so with the fixit teardown [check .. X] .. where's the chipworks die photo of the A8X ?
if they put 3 cores into the A8X is it safe to assume with a 14nm/16nm FinFET process next year perhaps, that the A9 will get 3 CPU cores as well ?
The PC gaming industry moved away from mixed precision rendering many many years ago. Mixed precision created a mess for game developers who had to create custom mixed precision code paths for different architectures.
Power efficiency, power consumption, heat, noise, etc. matter in all areas now, not just mobile. The GPU performance and GPU power efficiency is good enough nowadays where there should not be an overwhelming need to render pixels with reduced precision IMHO.
Errrr one step at a time. Even if we get a die shot I'm awful with them. Someone had estimated from an early pic ~117mm2, but my gut feeling says over 130mm2 for sure.so with the fixit teardown [check .. X] .. where's the chipworks die photo of the A8X ?
if they put 3 cores into the A8X is it safe to assume with a 14nm/16nm FinFET process next year perhaps, that the A9 will get 3 CPU cores as well ?
I have this feeling that Apple is targeting a particular usage model on the iPad to warrant that 3rd core, perhaps the rumoured split-screen apps or an updated multi-tasking model. Will most iOS apps /iPhone benefit much from a 3rd core, compared to bumping the MHz that will benefit every app. If Finfets really improve leakage, perhaps Apple will be more tempted to chase clockspeed next round?
This is indeed shown by Anandtech SPECint2000 run: 181.mcf is putting a lot of pressure on the memory subsystem (the article wrongly hypothesizes integer multiplication is the source of the speedup).
Having studied some non benchmark code (e.g., browsers displaying web pages as opposed as running some JS benchmark), the data cache hit ratio is quite high, much higher than what 181.mcf shows (about 10 misses/kinst vs 100 misses/kinst). So even SPEC shows some distortion (SPEC CPU 2006 mcf version has slightly lower D$ misses, but TLB misses are higher).
The increase in fill rate suggests a cluster count and/or clock speed that should have pushed the assumedly ALU bound Manhattan test to higher frame rates, even accounting for a much higher degree of theoretical max fill rate being achieved. This is in the context of current assumptions about the configuration and performance characteristics of the TMUs in announced PowerVR cores, of course.
Maybe the GX6650 or some custom PowerVR six cluster variant they're using picked up an extra four TMUs over the expected twelve (for sixteen in total) and is being clocked somewhere around 500 - 550 MHz (I realize that's a big range)? Or maybe the performance characteristics of each TMU significantly improved from Series 6 to 6XT?
Their benchmark is allowed to run code that the A8/X doesn't like... as long as they provide a reasonable connection to wide-spread, "real-world" coding practice.
Also interesting is the Air2's relatively poor 3DMark Graphics score scaling (~1.3x) over the iPhone 6Plus.
Please don't mention that I caught Ailuros in the exact same trap a couple of weeks back.
You did and it happens to me all the time. It doesn't hurt my feline pride *meowww*
so with the fixit teardown [check .. X] .. where's the chipworks die photo of the A8X ?
if they put 3 cores into the A8X is it safe to assume with a 14nm/16nm FinFET process next year perhaps, that the A9 will get 3 CPU cores as well ?
I have this feeling that Apple is targeting a particular usage model on the iPad to warrant that 3rd core, perhaps the rumoured split-screen apps or an updated multi-tasking model. Will most iOS apps /iPhone benefit much from a 3rd core, compared to bumping the MHz that will benefit every app. If Finfets really improve leakage, perhaps Apple will be more tempted to chase clockspeed next round?
Once you enable photo stream, going forward it makes photos that you take, available to other devices (is it for 30 days ?). It won't make photos available that were taken prior to photostream being activated. I think apple have a new cloud storage for that in IOS8, but I haven't played with it.B
Also, damned if I know how to make my photos share over to the ipad. Photo stream is activated in icloud, but nothing actually copies over.