AMD's Carrizo APU With Excavator Cores Significantly Improves Efficiency

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hst101rox

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Now if only they could make a high end Excavator laptop CPU that is more than 35w TDP to really compete. Their laptop chips don't clock nearly as high as Intel's, and less work done for the same clockspeed
 

Jose Porto

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@shafe88 why would you want a desktop part that requires more power to achieve the same performace than Kaveri? That's what the slides show to happen when you go beyond 1.00 in the normalized frequency.
 

kalmquist

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One thing to note is that in the second graph, the frequency/power lines cross at about 20 watts per module or 10 watts per core. So the high density libraries make sense for mobile computing, where the power budget is small. AMD might also use the excavator core in a server chip, which often use lots of cores running at a relatively low frequencies. But the high density libraries seem like a poor fit for desktop users. For example, 8-core FX-8370 has a TDP of 125 watts, or 15.6 watts per core. When some cores are idle, the FX-8370 increases the speed of the remaining cores, drawing even more power per active core. So for desktop processors, we should expect the use of high density libraries to result in lower clock rates.
 

Bibbit

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Just give me a bloody APU that I can use in an HTPC with WMC and 6 or 9 tuners. My i5 setup does an awful job fast-forwarding recordings at 1.5X. My AMD E450 setup did that much better, but didn't handle extenders/lots of tuners well at all.
 

KaiserPhantasma

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the sad thing is im actually looking to buy a laptop that can do most AA games at low,med settings even at 720p WITHOUT a discrete GPU (will be carrying it most of the time) and there seems to be non besides the intel laptops with iris pro iGPU inside them :( and was hoping AMD can "step up" their game and let their APUs actually do what they were supposed to be good at which sadly is not that good :(

 
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