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AMD Launches Three Kaveri APU SKUs in February 2014 – Feature Set For A10 and A8 APUs Detailed

It will be for TDP reasons like d_brennen says, AMD have a 100W limit and they have to ensure the CPU can be maxed (Prime95 type loads) along with the GPU at the same time without breaching it.
 
I've not used FM1/FM2 before but it's usually dependent on motherboard (Asus are generally great), AMD can't break the official TDP limit though else the cheap boards who just barely follow spec will not be able to run them...

A lot of FX8350 were reported to be more than 125W and cheaper board manufacturers had to bring in throttling mechanisms to protect the VRM's and stop systems crashing under load.
 
But a A10-5800K clocks fine (both core and IGP which results in improved scores as expected) on this board.

I can get Kaveris core speed up which improves results but the IGP increase is having little effect.
 
stulid said:
But a A10-5800K clocks fine (both core and IGP which results in improved scores as expected) on this board.

I can get Kaveris core speed up which improves results but the IGP increase is having little effect.
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Is that just OpenCL? IE compute work, for that it wont. even discrete GPU's it makes no difference for OpenCL work how high you clock it.

The Driver has a set speed at which to use OpenCL for stability reasons, it will ignore the overclock
 
stulid said:
Any game etc or 3mark etc, zero effect by increasing the IGP core.

But am messing around more as I type.
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I don't know how APU's work TBH.

And i don't want to insult you by stating what no doubt is obvious to you, having said that two minds work better than one. so here goes.

Make sure you have the Board Power line maxed in the BIOS, CCC and MSI AB. if its not set right it may throttle

Judging by Martin's comment to me the iGPU has no voltage control? if it does set MSI AB to force constant voltage, it may not recognise the regulators, forcing Constant voltage bypasses those regulators.

Use GPU-Z "log to file" in the "sensors Tab" to make sure its actually running at the clocks set.
 
I think it's bios related atm.
Some FM2 boards on early bios's had this issue, you could set the iGPU clockspeed to whatever you wanted in the bios but it had no effect.
 
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GPU-Z isnt updated to support these APU's, just get zero readings from it.

Programs are showing the the IGP at the speed I have set, but meh..really strange.

Never had this issue with Trinity or Richland (the later which I dont have any more)
 
humbug said:
GCN Cores = HD 7### / R7/9 2##, even a bad one will do 1150Mhz a golden one 1350 though thats very rare.

The GPU architecture can do a lot more than 900. if anything its Motherboard and or BIOS limitations.
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That's based on the tsmc 28nm hkmg process, not gf 28nm bulk, its too early to know its clock scaling . Also voltage regulation will be different than a discreet gcn card.
 
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