NeoGAF: Wii U GPU 160 ALUs, 8 TMUs and 8 ROPs

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fatslob-:O said:

The IPC is actually worse.  

5 gflops per core at 1.2ghz is pretty bad but you shouldn't be depending too much on the CPU to help with rendering because all of the newer consoles are GPU accentric and CPUs rarely do anything for rendering if any at all. 

Marcan, the hacker who stripped down Wii U and first revealed it's clock speeds and architecture, stated that Espresso, Wii U's CPU, should "win big on IPC on most code" compared to the less efficient CPUs of PS3/360.

Espresso may be lower clocked than its rivals but it has far more cache, a shorter pipeline less affected by performance robbing bubbles, out of order execution, and a DSP for offloading the audio workload.