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[PC PER] 3DMark API Overhead Feature Test - Early DX12 Performance - Page 14  

post #131 of 157
Quote:
Originally Posted by SpeedyVT View Post

I found this if anyone were curious.



It does in fact seem Mantle is more core dependent than DX12.

This is kind of scary. It makes an iGPU more powerful than a current GPU in DX11.

whahaha ... steamroller does better than i3.... lololol. Almost as fast as i5 2500K... but i want to see in- game performance.

Yet again we can see anti- AMD propaganda... i7 and FX 8350 should very similar (i7 leading of course)
Edited by Themisseble - 4/6/15 at 4:05pm
post #132 of 157
Quote:
Originally Posted by Themisseble View Post

Did anyone checked core usage and compare it between DX11 and DX12?

I would really like to see benchmarks between i3 vs FX 6300 vs i5 vs FX 8320 vs i7... Can modules do better job than HT?

Some tests with FX 6300, stock turbo core disabled and @ 4-6 ghz, Sapphire 7870 XT OC Boost and 290 Vapor X OC

6300 stock + 7870 XT stock






6300 @ 4.6 ghz + 7870 XT stock






6300 stock + R9 290 stock






6300 @ 4.6 ghz + R9 290 stock


Edited by wooddragon - 5/14/15 at 8:21pm
post #133 of 157
15K drawcalls with 4.6GHz OC ... niicee!

Thanks man.
post #134 of 157
Quote:
Originally Posted by wooddragon View Post

Some tests with FX 6300, stock turbo core disabled and @ 4-6 ghz, Sapphire 7870 XT OC Boost and 290 Vapor X OC

6300 stock + 7870 XT stock






6300 @ 4.6 ghz + 7870 XT stock






6300 stock + R9 290 stock






6300 @ 4.6 ghz + R9 290 stock


Could you try the R9 290 with 4 cores enabled at 4.3ghz?

It'll give me a rough guess where my performance is.
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post #135 of 157
Quote:
Originally Posted by Themisseble View Post

15K drawcalls with 4.6GHz OC ... niicee!

Thanks man.
Quote:
Originally Posted by Themisseble View Post

15K drawcalls with 4.6GHz OC ... niicee!

Thanks man.

thumb.gif It's really good the perfomance in stock 3.5 ghz too

Quote:
Originally Posted by SpeedyVT View Post

Could you try the R9 290 with 4 cores enabled at 4.3ghz?

It'll give me a rough guess where my performance is.

I've plained some tests this weekend with an FX 8350 at 4.0 and 4.4 ghz using 8 and 4 cores paired with the 290, it will be nearly you need, If I'll have time enough I'll do 4.3 too wink.gif . It´s expected to loose about 25% in 4 cores stock but the interrogant for me is the scaling up in oc, we'll see You have to wait till Sunday.
post #136 of 157
Quote:
Originally Posted by SpeedyVT View Post

Could you try the R9 290 with 4 cores enabled at 4.3ghz?

It'll give me a rough guess where my performance is.


I couldn't finish the other tests but here is your`s, 12k is not bad for a quad. Not far from I was expecting:





post #137 of 157
Quote:
Yet again we can see anti- AMD propaganda... i7 and FX 8350 should very similar (i7 leading of course)

You're the one posting "AMD propaganda" on like, every thread and defending it for 200 posts tongue.gif

Hardware-wise, i'd expect 4-module piledriver to be decently competitive against 4c4t Haswell, but require software to effectively split up onto 8 threads to get there (which is a big weakness and is literally impossible for some workloads, difficult or cost prohibitive for others)

AMD is already abandoning module-based multithreading for a core that's supposed to be ~1.6x faster clock for clock than piledriver because having cores THAT slow just doesn't really work well for many consumer workloads - even if you can scale to ~1.68x performance per module when utilizing 2 threads. A CPU that performs well is better than one that performs well when X and Y conditions are met, but poorly otherwise.

dx12 and mantle game workloads are not perfectly threaded, they're just a lot more split up than dx11. Even in this test, on the fastest performing setup - having 8 cores is only ~3.8x faster than having one core - not 8x faster - because of relatively poor multithreading ability compared to other software. There are some workloads like video encoding where you can split a workload 8 or 16 ways with barely any overhead, but most of the time it's really awkward if possible at all with game code even before you deal with dx12 and other API's being more demanding on a main thread than the other threads
Edited by Cyro999 - 5/17/15 at 8:23pm
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post #138 of 157
Quote:
Originally Posted by wooddragon View Post

I couldn't finish the other tests but here is your`s, 12k is not bad for a quad. Not far from I was expecting:






Thanks! That's gorgeous! smile.gif I might keep my A10-7850k for till the next generation after Zen. Unless it's that good! Ha ha! smile.gif
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post #139 of 157
Quote:
Originally Posted by Cyro999 View Post

You're the one posting "AMD propaganda" on like, every thread and defending it for 200 posts tongue.gif

Hardware-wise, i'd expect 4-module piledriver to be decently competitive against 4c4t Haswell, but require software to effectively split up onto 8 threads to get there (which is a big weakness and is literally impossible for some workloads, difficult or cost prohibitive for others)

AMD is already abandoning module-based multithreading for a core that's supposed to be ~1.6x faster clock for clock than piledriver because having cores THAT slow just doesn't really work well for many consumer workloads - even if you can scale to ~1.68x performance per module when utilizing 2 threads. A CPU that performs well is better than one that performs well when X and Y conditions are met, but poorly otherwise.

dx12 and mantle game workloads are not perfectly threaded, they're just a lot more split up than dx11. Even in this test, on the fastest performing setup - having 8 cores is only ~3.8x faster than having one core - not 8x faster - because of relatively poor multithreading ability compared to other software. There are some workloads like video encoding where you can split a workload 8 or 16 ways with barely any overhead, but most of the time it's really awkward if possible at all with game code even before you deal with dx12 and other API's being more demanding on a main thread than the other threads

From what I've read (Rumors), they are not doing away with the module design, but the use of CMT as opposed to SMT. Modules are proven to be efficient, just not fast while in CMT.

One module has four SMT cores with the ability to do two threads per core.
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post #140 of 157
Quote:
Originally Posted by SpeedyVT View Post

Thanks! That's gorgeous! smile.gif I might keep my A10-7850k for till the next generation after Zen. Unless it's that good! Ha ha! smile.gif

You' re welcome, but regard a detail: 7850k has no cache L3, results from this cores are somewhat less powerfull than FX cores. Anyway I think at 4-3-4.4gz they will survive the beginning of dx12.
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