Core i7 4770K has the same TDP value of 84W as Core i5 4430. Core i7 4770K has higher Power Consumption than Core i5 4430. With the same thinking, Intel is cheating in the TDP value of Core i7. Do you get it now ???
Shivansps compared the TOTAL Platform power consumption of different 45W TDP SKUs in Reviews to come to the conclusion that AMD is cheating with Kaveri 45W TDP value simple because another 45W TDP SKU has lower power consumption than Kaveri.
As we have said so many times here before, TDP is not Power Consumption. Two different 45W TDP SKUs can have different power consumptions. Same applies to Intel SKUs both in Desktop, Mobile and Server.
Well then stop looking at tdp and performance and comparing to power consumption on mobile. Performance/tdp is worthless. You agree. Then calculated performance on mobile when that data is extrapolated from performance/tdp is also useless.
The end result is that kaveri (at a certain tdp) performs much better than richland but consumes more power.
There was throttling with some P4 models. Did your hear about that?
I don't see how this is relevant. Turbo should be fully attainable.
1. The A8 7600 has a configurable TDP - meaning user can choose between 45W and 65W. Is it your opinion that the CPU and GPU clocks should never drop bellow maximum values no matter what TDP you choose?
2. If "boost" is to be "fully and completely available", what is the point of calling it boost? Wouldn't it be nominal speed?
1. A8-7600 has different clocks for each TDP.
2. Boost makes perfect sense for situations where there are thermal limitations (mobile) or deactivating several cores to attain a higher frequency on the remaining.
3. Mobile is different from desktop (which I specifically said), mainly due to cooling requirements (more stringent tdp requirements).
4. That is the reason why real world tests are necessary. With boost and dropping clocks you cannot look at a prime and furmark test (with dropped clocks) and then at performance (at boost clocks) to get any measure of efficiency and extrapolate to mobile.
Toms and techreport did that and showed that there was not a huge change in efficiency.
My problem is not with the tdp business but with the extrapolation to mobile based on tdp.
Edit: I have no problem with limiting tdp (max power consumption) to fit SFF. But that is greatly difference from a change in efficiency. ex) The 4770k could be limited to 70W. This would not affect anything but extreme cases of power draw (and drop clocks). However, this would NOT change the efficiency of the CPU, nor would it affect how the CPU performs in mobile.
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