Caporegime
I wonder if it would be possible in near future that AMD could fit 2-3GB of GDDR5 mem in the APU?
...or would AMD be afraid of upsetting memory manufacturers?
Look at Iris Pro, they might do something like that.
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I wonder if it would be possible in near future that AMD could fit 2-3GB of GDDR5 mem in the APU?
...or would AMD be afraid of upsetting memory manufacturers?
I wonder if it would be possible in near future that AMD could fit 2-3GB of GDDR5 mem in the APU?
...or would AMD be afraid of upsetting memory manufacturers?
So am I right in thinking, after looking at all the benchmarks etc. that kaveri's CPU (streamroller core) performance is a bit of a flop and the only worth while kaveri apu's are the 45W models?
So am I right in thinking, after looking at all the benchmarks etc. that kaveri's CPU (streamroller core) performance is a bit of a flop and the only worth while kaveri apu's are the 45W models?
If you're like everyone else who only looks at a cpu in the traditional way then yes. If you look at cpu-gpu compute, then those steamroller cores can talk to the gcn cores and in a hsa environment can provide huge opencl performance that no traditional cpu can even get close to.
I'm referring more to the market or people who would be interested in or buy a kaveri.
It seems to me that the higher end kaveri APU's don't provide enough extra all round horse power cpu and gpu to warrant buying them over on of the upper models.
Once you get to something like A10-7850K it seems you would be much better off spending a bit more for a more powerful CPU and a lower end GPU.
Laptop's on the other hand seem to be the one that will benefit most from kaveri and they will probably use the 45W models.
From your other post you state ''after looking at all the benchmarks etc. that kaveri's CPU (streamroller core) performance is a bit of a flop and the only worth while kaveri apu's are the 45W models?''
You are right about the lower wattage Kaveris not being far behind the higher performance Kaveris, I agree. But you aren't looking at what an apu essentially can do. Hence you are still ignoring the hsa and benefits of cpu-gpu compute, because you mention once you hit 7850k level you might aswell buy a powerful cpu and a lower end gpu.
That would only work out if your intention is to only game.
If you buy a haswell dual core or haswell i3 and a discreet card you can gain a better gaming experience, but once again you're not looking at the whole point of an apu and its merits. If Kaveri had the gddr5 onboard, then you wouldn't need an intel or amd am3 and a discreet gpu for budget gaming, furthermore when software makes use of the hsa architecture the apu will provide better performance than the haswell i3/dual core.
As it stands though, currently until Hsa advances and Amd innovate in the memory bandwidth situation, Kaveri and it's lower power offerings seem ideal for htpc / laptops. You are right 7850k is too pricey for not a lot of gain over lesser kaveris.
So are the steamroller cores in kaveri now considered full proper cores rather than the cores in pile driver were each core shared a FPU with another core (or something like that).
I'm just curious as I would have thought that change would provide a significant boost to kaveri's cpu based floating point performance.
Does anyone know when the Kaveri refresh with DDR4 support is due? Q3 or Q4 this year?
The dies shots of Kaveri indicate the memory controller has additional functionality which is not being used - it looks like it is quad channel.
Isn't it more likely to have been GDDR5 support? the idea of GDDR use hitting mainsteam was looking possible earlier in the development cycle - could be a relic from that. Just can't see AMD lining up Quad channel on a sub-£150 range of CPUs
Alternatively, perhaps there actually is functionality to allow for an on-package memory die to be added, as with IrisPro?