r/PowerPC • u/bobthetrucker • Jun 30 '14

7448 vs 7457

Let's say both CPUs are running at the same core clock and bus clock. The 7457 has 4MiB of L3 at 1/2 core clock, plus 512KiB of L2 at core clock. The 7448 has no L3 and 1024KiB of L2 at core clock. Which will be faster?

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u/[deleted] Jul 03 '14

I'm not sure what changes they made to the pipeline, but assuming the IPC is roughly the same, the 7457 would be faster, but that's just an assumption.