S5L8940

The S5L8940 is the Apple A5 processor currently used in the iPad 2 and the iPhone 4S. Manufactured by Samsung, the processor itself is dual-core, with a processing speed of up to 1GHz.

GPU
The S5L8940 chipset has a 45nm dual core PowerVR SGX543MP2 GPU which is clocked at 200MHz.

Exploits
Userland Kernel
 * T1 Font Integer Overflow- Works up to iOS 4.3.3
 * Incomplete Codesign Exploit- Works up to iOS 4.3.3
 * Racoon String Format Overflow Exploit- Works up to iOS 5.0.1
 * On 5.1.x, this exploit was reused by patching racoon (see Rocky Racoon)
 * HFS Heap Overflow- Works up to iOS 5.0.1