[citation][nom]Omega21XX[/nom]"The CPU isn't the only part of the SoC to get an upgrade: Intel equipped the Z2580 with a PowerVR SGX 544MP2 GPU running at 533MHz. The SGX 544 is similar to the 543 used in Apple's A5, however it adds support for Direct3D 9_3. At 533MHz you can expect roughly twice the shader/compute performance of the 543MP2 that's in the A5. Granted by early next year we'll likely see competitive, if not faster GPUs implemented in SoCs (quite possibly long before then)."http://www.anandtech.com/show/5592 [...] 2580-z2000[/citation]
... "The specs are the same, and at comparable core counts and clock speeds the SGX544/543 perform identically."
Ya, it's clocked significantly higher in that implementation. The SGX 544 is not inherently any faster then the 543. It'll definitely perform better if you clock it higher then the SGX543 you're comparing it to, but it's about as profound as saying an SGX543 clocked twice as high as another SGX543 will provide roughly twice the performance.