AMD disables Turbo to expand APU selection for tablets, convertibles


— 11:19 AM on September 11, 2013

What's this? A new AMD APU for tablets, convertibles, and budget ultraportables? Go on.

AMD has added the A4-1350 to its 2013 Elite Mobility processor family. The press release refers to the chip as the Elite Quad-Core A4-1350, which seems a little hyperbolic given the specifications. The A4-1350 is a Temash-based chip with four Jaguar CPU cores clocked at 1GHz. Those cores are joined by an integrated Radeon with 128 ALUs running at 300MHz.

Basically, the A4-1350 is the A4-1450 without Turbo. The A4-1450 has identical unit counts and base clock speeds, but that chip can opportunistically boost its CPU cores up to 1.4GHz and its GPU up to 400MHz.

Like its Turbo-enabled sibling, the A4-1350 has an 8W TDP. AMD says the A4-1350's average power consumption is "at or below 3 watts for many common use cases," though. Amusingly, those estimates are based on testing conducted with an A4-1450 that had its Turbo functionality disabled. The test methods footnote goes on to say that the two chips are architecturally equivalent, which means the 4MB of L2 cache listed for the A4-1350 is probably a typo. The chip should have 2MB of L2 cache like the A4-1450.

Dynamic clock boosting was a big part for the pitch for Jaguar-based SoCs, so it's a little surprising that the A4-1450 remains the only one with that feature enabled. The A4-1350 adds to the list of Temash SoCs without Turbo functionality, and we've yet to see a Kabini-based part with clock-boosting capabilities. I guess AMD had to announce something to divert attention from today's Bay Trail reveal.

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