Battlefield 4 and mantle

randika171

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Feb 18, 2013
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I have a very old Core i3 540 @ 3.06GHz. And I use the SAPPHIRE R9 270X. Thinking of downloading the mantle patch and drivers..how will BF4 perform now? % increase?
 

Headbomb

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As far as I have heard, Mantle will increase BF4 performance by up to 40%. However, you might want to upgrade your CPU as it will bottleneck your video card and give you less performance.
 

rdc85

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As Anub1s said, the driver still not optimized for 270x..
it more work than benefit IMO... I suggest wait for better release.....

About performance increase i think it will great, since the whole mantle idea is helps performance with the weaker processor like yours..
(the weaker the cpu the more performance gain in %)...
 

eazy899

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Jan 16, 2014
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Instead of me saying it, read the review for yourself.
I am posting the link below.

That being said, the article in summary is basically that mantle improves performance up to 40% on amd cpus from the fx series and apus.
It also improves performance of AMD Graphics Cards.
Lastly, it helps Intel cpus (a range of them are tested) but none of their performance increases over 10%, just under actually.

http://wccftech.com/amd-mantle-api-performance-preview-radeon-r7-260x-radeon-r9-270x-radeon-r9-280x/

Lets not forget that most software isn't optimised for HSA yet either.

Once software uses mantle, HSA and true audio, the real performance of AMD APUs will be visible and be significantly better than they appear now.

Lastly, lets not underestimate true audios benefits because having dedicated hardware for the sound on the APU means that the CPU and GPU componenets will be freed up to do what they do best so software which uses true audio will also increase performance on APUs since the CPU and GPU wont be needed for audio tasks.
 

eazy899

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Jan 16, 2014
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By the way, slight correction,

In the article Mantle actually improves performance over 40% on AMD APUs but only upt o 8% on Intel CPUs.

Its still better than Direct X and is definitely progress for everyone but it definitely helps AMD enthusiasts the most.

http://wccftech.com/amd-mantle-api-performance-preview-radeon-r7-260x-radeon-r9-270x-radeon-r9-280x/
 
You should read it carefully. On weaker processors like the A10-7700K, the increase is up to 40.9%, but it only is up to 8.2% on an i5-4670K and 8.7% on an AMD FX-8350. Again, less powerful processors are the ones that will benefit the most and it doesn't matter if it's an AMD or an Intel processor.
 

eazy899

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What I said is not wrong.

I said it increased performance up to 40% on AMD Processors and it did and I said only up to 10% on Intel processors and it did.

Both were correct but looking at the article properly, you are right that it is largely to do with power of the CPU and that it has weaker effects on stronger CPUs.

I was correct but the statement I made was misleading because I didn't bother re reading the article b4 i posted as it was late at night.

That being said, it will have a much better effect on APUs for budget or mid range gamers and AMD designed those APUs for non enthusiasts but rather normal gamers so it makes sense.

Basically, it just looks like it really helps out GPUs so I would be more interested in seeing if there is any difference between AMD and Nvidea graphics cards with mantle.

As a final word though, I agree you are correct that it depends very much on the power of the CPU how much it benefits a system.
 

jed

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How would you explain this, a 3970X with 2 290X's received a 58% increase in performance?

http://battlelog.battlefield.com/bf4/news/view/bf4-mantle-live/
 
It makes no sense and I would rely only on tests performed by trusted sites. The A10-7850K should benefit the most while the i7-3970X should benefit the least.

At the link provided by easy899, section "AMD Mantle API Official Performance Numbers" is from AMD and it's much closer to what trustworthy sites have seen in their own tests (where the numbers often are a bit lower).
 

RobCrezz

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It is wrong though. On the link you posted the i3-4340 gets a 25% increase. The other intel chips dont benefit much because they are powerful.
 

InvalidError

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AMD has said Mantle is "open" but that still does not change the fundamental fact that Mantle is little more than a thin GCN wrapper which means Nvidia would need to either emulate GCN on their existing GPUs or make their future GPUs more GCN-like to make Mantle work on their GPUs... just like AMD would need to emulate GCN if they wanted to make Mantle work on their own older GPUs or future GPUs if they dropped GCN later.

Mantle is an "open" API tied to proprietary hardware. This usually makes porting it to other hardware anywhere from difficult to nearly impossible to do efficiently short of cloning the hardware.
 

joho5

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Dec 28, 2013
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The whole thing of mantle is to prevent cpu bottlenecking.
 

The primary goal is to sell more AMD APUs and GPUs.
 


I don't see how that is going to happen as they have different architecture and Mantle is so specific that it won't run on older AMD cards, if it did then getting it to work on Nvidia cards would be a lot easier to believe.

I would be surprised if JHH ditched his plans to take over the Universe and moved Nvidia over to a GCN like architecture, it just doesn't seem like the sort of thing he would do.
 

InvalidError

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Not really. The real objective is to reduce draw call overhead so developers can make many more smaller calls and have finer-grained control over how things get done. In AMD's Mantle introduction, they said Mantle overhead allows about 9X as many calls before overhead catches up with DX11 so the general expectation is that Mantle titles will use up to ~9X as many ~9X smaller/simpler calls.
 

con635

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Oct 3, 2013
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Op you are the perfect candidate for mantle, most gains are seen in multi player, go ahead and try it can be switched back to dx in a click and alot of people are reporting the drivers are better in dx anyway...please post results/experience :)