The first Geekbench results for the iPhone 5,2 have started to appear on the Geekbench Browser, showing the iPhone 5 will offer a huge leap in performance over the iPhone 4S. John Poole, the founder of Primate Labs has put together the first iPhone 5 benchmark confirming iPhone5,2 device running iOS 6 with a Dual-Core 1.02GHz ARM v7 processor and 1GB of RAM. The iPhone 5,2 receives a total Geekbench score of ~1601, well above the iPhone 4S benchmarks of 629 and the iPad 3 benchmarks of 766. So, the new iPhone 5 seems to benchmark way faster than the iPhone 4S.
Brian of Anandtech believes iPhone 5,2 is likely the A1429 Verizon device (A1428 being iPhone 5,1). The first real change is clock speed. According to the tests, the A6 clocks higher than the A5 at 1GHz. Apple clocked its A4 and A5 CPU core(s) at 800MHz, although these Geekbench results point to a 25% increase in frequency at 1GHz. While comparing the peak bandwidth utilization, the iPhone 4S had 6.4GB/s of theoretical bandwidth out to main memory, and the iPhone 5 raises that to 8.5GB/s. In the Stdlib write test carried out by Anandtech, the 4S couldn’t even hit 50% of that peak bandwidth. The iPhone 5 on the other hand manages to hit over 70% of its peak memory bandwidth.
The results place the iPhone 5 at the top of the mobile phone market with benchmark scores slightly above the high-end android smartphones. For comparison, the quad core Tegra 3-powered Nexus 7 scored a 1591 and the Exynos 4412 quad-core Samsung Galaxy S III scored 1560 in the benchmark test but outperformed the iPhone 5 when S3 was tested on Jelly Bean with Geekbench score of 1781.
Geekbench Test Results for Competitive Devices