Well according to BenSkyWalker silicon is final and T4 is a shipping product that can be compared to A6. We can only hope one day we will all have read as many EE books as him. For now I'll just have to continue working in the industry itself. The fact is everyone compares GLBenchmark, and if you have silicon back you are not in early development stages. Either Nvidia have underclocked their dev boards massively (which is odd since you can stick active cooling on dev boards very easily) or must have some seriously broken hardware/drivers at this stage if they are going to pull out a 50% performance increase on such a simple benchmark that they will have been working on optimising since day 1. Generally if silicon is that bad it would never leave the premises either, in fact you wouldn't even bother going to silicon at that stage BSW: Where are you getting these poor iPhone battery figures from? It is consistently near the top on every test Anand has run? http://www.anandtech.com/show/6330/the-iphone-5-review/13 The only weak point of the iPhone is talk time, something that is irrelevant in terms of CPU/GPU and completely due to its smaller battery. This is Apple's design choice, and they clearly pull it off with a far superior SoC. If Apple decide to go down the large battery route they have far more headroom to play with than the current battery monsters. Look how crap the T3 based HTC One X does though in GPU tests. Hilarious. Completed dominated in performance and power. And guess what is on top with 3x more battery life than the T3, an SGX 540. iPhone 4S completely destroys T3 and is a faster GPU too and was available before T3 also! Now I await your logic that because the Razr i has a slower GPU that is why it has a 3x advantage over T3. Extending that though should T3 have at least 3x the battery life of the iPhone 5?