Caring for the Elderly: iOS 4.1 Speed Boost on the iPhone 3G Let’s talk briefly about what makes the iPhone 3G (and 2G) fundamentally different from the 3GS. The iPhone 3G, like the 2G, is based around a 412 MHz ARM11 family Samsung SoC which implements the ARMv6 instruction set. It’s got 128 MB of LPDDR1. By contrast, the iPhone 3GS uses a 600 MHz ARM Cortex-A8 family SoC which runs the ARMv7 instruction set, and packs 256 MB of LPDDR1. The iPhone 4 similarly runs ARMv7 code. By nature of the two platforms running different instruction sets, their underlying iOS kernels are completely different http://www.anandtech.com/show/3893/c...t-on-iphone-3g |
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I upgraded to iOS4 on my 3G right before I upgraded.. The phone had never lagged so much.. I also had it Jailbroken so that it also had the background image and multitasking enabled, and that only made it that much worse.. I did notice that my FreeMem app used to be able to free up about 20mb of memory, but after the iOS4 update it would never free more than 5mb. I gave it to my friends son as a bday present, I'll have him try this and see how much better it really is.. |
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