A high-end PC GPU and a low-end mobile GPU can be literally hundreds of times performance difference apart. Same is true even on a single platform.

毫不夸张的说，高端PC和低端移动设备的GPU性能可能相差几百倍，甚至在同一个平台上也相差这么大。

youdao

Did you think AMD showed all its mobile GPU cards when it launched the Radeon HD 8000M series in January?

ENGADGET

Because of the advanced architecture of PowerVR Series5XT, Imagination is in a rare position, amongst today's mobile GPU providers, of being able to offer today some of the new and advanced features expected from future GPUs on Imagination's current Series5XT GPU technology, through API extensions without any hardware changes or additional cost.

ENGADGET: Imagination Technologies' PowerVR Series6 mobile GPU debuts at CES, we go eyes-on

Suppose we are wrong and AMD indeed continues its blitzkrieg in mobile discrete GPU market, even then further value add to the company is relatively low.

FORBES: AMD Gains In Discrete Graphics Market Share, So What?