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  • testbug00 - Thursday, May 23, 2013 - link

    One, this is just bad naming.

    two, i meant to make an account to say this forever ago, but this version of the website runs slow as hell (compared to the old one) on my iphone4.
    Reply
  • testbug00 - Thursday, May 23, 2013 - link

    just to clarify the bad naming, i mean for Temash and Kabini together have horrible naming.... Reply
  • xdrol - Thursday, May 23, 2013 - link

    I hope you are aware that these are just codenames, AMD never brings these items to the market under these names. Reply
  • testbug00 - Friday, May 24, 2013 - link

    i mean the A4/A6 names, currently used by Temash, Kabini and Trinity/Richland Reply
  • varad - Thursday, May 23, 2013 - link

    Jarred,
    I'm not sure where you got the 9W TDP from. The slide seems to mention both A6-1450 & A4-1250 as having a TDP of 8W. Also, the A4-1250 seems to support higher max memory clock speeds. This could be why the TDP is similar despite dropping 2 cores and skipping turbo.
    Reply
  • JarredWalton - Thursday, May 23, 2013 - link

    Ha! I have a second set of images from AMD that distinctly shows 9W on the A4-1250. I wonder which one is correct? Here's the link to the "9W" image:
    http://images.anandtech.com/doci/6978/image004.png
    Reply
  • varad - Thursday, May 23, 2013 - link

    That is weird. For reference, do we know what the TDP is for android tablets such as the Nexus 7 and 10? Reply
  • JarredWalton - Thursday, May 23, 2013 - link

    I believe the SoC TDP on high performance ARM chips is right around 4W, with some going above that for short periods (8W max but only for a few seconds?) Reply
  • zeo - Tuesday, May 28, 2013 - link

    The Tegra 4 raises it to 5W but ARM SoCs idle most of the time and can idle to very low mw states that Temash can't reach aside from entering S3 Suspend State... and ARM SoCs can also perform most tasks while still operating in low mw power levels.

    AMD has improved their power efficiency significantly compared to the previous Brazos but their idle states still look more like ARM maximum states...

    Numbers given by AMD for example indicate that the A4-1200 APU consumes 1.2 Watt when idle, 1.4 Watt during browsing, and 2.35 Watt when playing h.264 online video at 1080p resolution. Total platform power for these types of activities is 2.8 Watt, 3.7 Watt and 5.3 Watt respectively.

    Mind that ARM SoCs also integrate more components than just the primary chipsets... Qualcomm especially, since they integrate the Cellular Modem now as well...

    This is one of the reasons why AMD can't offer mobile features like always connected standby... but also why they need to get below 5W to go into fan-less tablets.

    So it looks like only the A4-1200 would even try to compete in that range...
    Reply
  • MrSpadge - Thursday, May 23, 2013 - link

    Why would the A4-1250 not have a turbo mode, at least for the CPU? This seems stupid, since the technology is there (see A6-1450), the performance difference to the next model is there (4 vs. 2 cores will help at something) and the power consumption headroom should be there (otherwise the A6-1450 would never be able to actually turbo up).

    Especially with low clocked low performance CPUs single threaded performance is king!
    Reply
  • zeo - Tuesday, May 28, 2013 - link

    Well, first, it doesn't appear that Temash or Kabini have Turbo Core... Rather the Turbo Mode is a TDP Mode, as it doesn't dynamically change as needed but scales up, or down, and can stay in that mode as long as needed.

    If you look at the youtube video when AMD first demoed the Turbo Dock features, the quad core Temash requires both an additional battery and additional fans in the dock to support the Turbo Dock Mode.

    Testing of the sample Acer Aspire V5 with the A6-1450 also shows the 1.4GHz mode can be set to be constant and it doesn't burst like Turbo Core or Intel's Turbo Boost does.

    The A6-1450 was originally rumored to have a 5.9W TDP, with Turbo Dock increasing that to 14W... Now they list it as 8W but don't mention the Turbo Dock mode... So they may not be mentioning it because it goes against their power efficiency improvement statements...

    Mind that the Turbo Dock Mode increases both CPU Clock Speed, from 1GHz to 1.4GHz, and GPU clock, from 300MHz to 400MHz...

    Compared to the A4-1250, which stays at 1GHz but has a GPU Clock of 300MHz... which is apparently the only difference between the the A4-1250 and the A4-1200, since the A4-1200's GPU is clocked just 75MHz slower at 225MHz but that's apparently enough for about double the TDP difference.

    So you can just imagine what increasing a full 100MHz from 300MHz to 400MHz and also increasing CPU by 400MHz will do to the TDP...

    While, second, the dual core Temash are the ones intended for Fan-Less tablets... at least the lower end A4-1200 is... The A4-1250 may be too high at 9W TDP to be passively cooled...
    Reply
  • R3MF - Friday, May 31, 2013 - link

    when do Jaguar core bases AMD SoC's get HSA?

    despite the shared memory, I am presuming that HSA is not present in the current Kabini/Temash crop of Jaguar SoC's...........

    Also, is there a genuine 2x core Temash die, or are they all merely harvested 4x core dies?
    Reply

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