I thought Cortex A8 was TI's implementation of ARMv7 and Snapdragon Qualcomm's:  the ISAs are the same but Snapdragon can run distinct cores at distinct speeds because of disjoint caches per core, beneficial for power savings, for example.<p>Check  <a href="http://www.arm.com/miscPDFs/14128.pdf" rel="nofollow">http://www.arm.com/miscPDFs/14128.pdf</a><p>for more details than are simple to read.