Eug
Lifer
- Mar 11, 2000
- 24,165
- 1,809
- 126
The CPU or RAM wasn't the issue, the problem was the GPU. The 4s was a massive leap in GPU, maybe the largest ever in iPhone history:
![]()
The iPhone 4 was a huge step back in power-per-pixel compared to the 3GS due to having the same GPU. I was big into iPhone gaming at the time on my 3GS and the 4 was a huge step back if you cared about that.
That weaker GPU caught up with the iPhone 4 later in its life when iOS7 had to have many of its effects disabled to get the phone to run the OS. The real upgrade the 4S provided was its massive GPU, which is why it is still a viable device today and the 4 isn't despite both having the same amount of RAM.
Oh, in that case maybe for that specific situation. I didn't play many games on my phone, so 3D performance didn't really matter. CPU performance was more important to me, and of course RAM.
I do wonder if the bigger reason iPhone 4 doesn't run iOS 8 is because of the CPU. But the iPhone 4 actually runs iOS 7 about the same as the iPhone 4S runs iOS 9.
Last edited:
