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Who's going to buy the BullDozer?

Can anybody explain to me why the FX-8150 8 cores can't beat the 2600k 4 cores and 4 threads. It frequencies are much higher, is it just the architecture?
 
logi-cat said:
Can anybody explain to me why the FX-8150 8 cores can't beat the 2600k 4 cores and 4 threads. It frequencies are much higher, is it just the architecture?
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pretty much yeah. the combination of questionable design choices by AMD, crappy 32nm process from global foundries, lack of good OS scheduler support, and some fantastically good chips from intel, is the reason these chips are so uncompetetive.
 
gareth170 said:
i've bought a 8150 so i can test it myself, also i do video encode so hopefully it'll be better than my 1090t in that.
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Good for you, please post a review when you get a chance. I am seriously considering buying one as well. There have been a few reports that overclocking the NB really boosts the performance a lot. So maybe that's something you could try out.

I can't wait to see what your opinion of the CPU is.
 
joeyjojo said:
That's exactly what we're all wondering.
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It's simply because code is not optimised for BD.

There is a benchmarks (and forgotten where I have seen it) where BD is quite a bit faster then current i7, this is because the benchmark is one of the latest, and optimised to take account of BD.

Bulldozer is like importing a JDM Integra to Kazakhstan, then running it on 89 RON fuel when it was mapped for 98, then wondering why the engine is knocking and banging.
 
AMD buggered up big time.

So much hype it seems, for such a pile of cow dump. I'll be going the Sandybridge -> Ivybridge route for certain at Xmas.
 
JasonM said:
It's simply because code is not optimised for BD.
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This is the part i quite don't understand. All windows will see is a processor with 8 available cores. Just the same as an i7 2600k. So any mutlithreaded app will just see the same amount of cores.

Now im assuming by "new windows code" that AMD want module/core load balancing code within windows to assist with the processing efficiency of bulldozer?
 
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gareth170 said:
i've bought a 8150 so i can test it myself, also i do video encode so hopefully it'll be better than my 1090t in that.
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Your a brave soul :P

I'd like to see how an 8150 performs against an 2500/2600k with a z68 board using Lucid Virtu for quicksync encoding. Thats what I think will be interesting :)
 
djkav said:
This is the part i quite don't understand. All windows will see is a processor with 8 available cores. Just the same as an i7 2600k. So any mutlithreaded app will just see the same amount of cores.

Now im assuming by "new windows code" that AMD want module/core load balancing code within windows to assist with the processing efficiency of bulldozer?
Click to expand...

Far as I understand the Windows 7 issue is related to not shutting down cores at correct time, so the CPU is using more power that it should otherwise.

The issue with performance is due to code not been compiled for Bulldozer, other words code is not optimised for Bulldozer.

Visual Studio 2010 Service Pack 1 was released in March and had support for Bulldozer, so anything compiled with this should perform quite well. However to get from a developers desk, to an actual release can take a year or even longer. It's not even a quick task of re-compiling code, as all applications must go into testing and release cycles, this all takes time.

The issue is vast majority of code is not compiled with BD in mind, and software will need either an update, or wait for next release before it runs correctly.

I honestly think BD is a good chip, but will take at least a year before mainstream applications/games are compiled for it, best hope is patches are released. Even then there will be applications / games / drivers / modules that stay in use for years and never optimised for BD. Just for a moment think of the 1000's of dll's that form Windows 7 and drivers, most of these will never be re-compiled for BD.
 
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JasonM said:
Far as I understand the Windows 7 issue is related to not shutting down cores at correct time, so the CPU is using more power that it should otherwise.

The issue with performance is due to code not been compiled for Bulldozer, other words code is not optimised for Bulldozer.

Visual Studio 2010 Service Pack 1 was released in March and had support for Bulldozer, so anything compiled with this should perform quite well. However to get from a developers desk, to an actual release can take a year or even longer. It's not even a quick task of re-compiling code, as all applications must go into testing and release cycles, this all takes time.

The issue is vast majority of code is not compiled with BD in mind, and software will need either an update, or wait for next release before it runs correctly.

I honestly think BD is a good chip, but will take at least a year before mainstream applications/games are compiled for it, best hope is patches are released. Even then there will be applications / games / drivers / modules that stay in use for years and never optimised for BD. Just for a moment think of the 1000's of dll's that form Windows 7 and drivers, most of these will never be re-compiled for BD.
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Outside the server room code should not have be optimised for a CPU, the CPU should be able to execute the code in a timely fashion. Even though my usage is a bit different to the "norm" I see no need to let my 1055T go in favour of any one of these bulldozers, at any clock
 
i would buy the 4100 just to replace the crap cpu i have right now but i think i will just go for a 1090T or an i5 2500k but dont know which to go for?
 
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