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The specs on the "good" Kabini chips were known a while back when AMD launched the embedded version of it. They've now announced the names of the Kabini chips that unsurprisingly have the same specs:
A6-5200: 4 cores at 2 GHz, 128 shaders at 600 MHz, memory at 1600 MHz, 25 W TDP
A4-6000: 4 cores at 1.5 GHz, 128 shaders at 500 MHz, memory at 1600 MHz, 15 W TDP
To that, we can now add the two "good" Temash parts:
A6-1450: 4 cores at 1 GHz, 128 shaders at 300 MHz, memory at 1066 MHz, 8 W TDP
A4-1200: 2 cores at 1 GHz, 128 shaders at 225 MHz, memory at 1066 MHz, 3.9 W TDP
The CPU specs here aren't a surprise. But I am surprised to see a sub-4 W SoC with 128 shaders; I was expecting 64. The 300 MHz clock speed on the A6-1450 is also higher than I was expecting, though hardly shocking.
8 W is on the high side for a tablet, but manageable without needing outlandish cooling measures. AMD has detachables in mind with the A6-1450, as if you plug it in for extra cooling, you can clock the CPU up to 1.4 GHz and the GPU up to 400 MHz, albeit presumably at the expense of more power consumption.
AnandTech has some benchmarks up, and the new Jaguar cores at 1.5 GHz handily beat older Bobcat cores at 1.6 GHz. Thus, this is a substantial improvement in IPC.
I've previously said that if you want a Windows 8 tablet, then you want AMD Temash. Today's specs and benchmarks largely serve to confirm this. We'll see if Intel Silvermont is able to be competitive here, but I'm guessing that it won't be. Comparisons to previous generation Saltwell Atom cores are downright ugly, with Jaguar cores at 1.5 GHz roughly doubling the single-threaded performance of Atom at 1.8 GHz, and the Kabini GPU at 500 MHz offering about 10 (ten, and no, that's not a typo) times the GPU performance of an Atom Z2760.