Anandtech - DX12 Performance Preview

[Canbacon]

Damn it, dupe of a different thread. Please close.

http://linustechtips.com/main/topic/305586-anandtech-reviews-directx-12-star-swarm/

 

 

 

Anandtech just released a Win 10 DX 12 preview with some NVIDIA and AMD cards.

 

http://www.anandtech.com/show/8962/the-directx-12-performance-preview-amd-nvidia-star-swarm

 

From the benches, DX 12 is looking good so far.

 

[Skeletonfish]

interesting that its almost on par with mantle, cool tho

[Morpheus]

lookin good o.0

[BiFii]

So it brings the (same) improvements as Mantle but for green and red team?
Not too impressed, because Mantle didn't seem to have a great impact on gaming performance.

[The Benjamins]

Repost

http://linustechtips.com/main/topic/305586-anandtech-reviews-directx-12-star-swarm/

[Norman_the_Owl]

What? This graph makes no sense to me. This shouldn't double framerates

[The Benjamins]

What? This graph makes no sense to me. This shouldn't double framerates

it has fps for DX11, DX12, and mantle. how is that not clear?

[Mew]

What? This graph makes no sense to me. This shouldn't double framerates

 

If it shouldn't improve framerates, then what should it do?

[Norman_the_Owl]

it has fps for DX11, DX12, and mantle. how is that not clear?

It doesn't make sense that the performance gap is so huge. It really shouldn't have been that effective

[Norman_the_Owl]

If it shouldn't improve framerates, then what should it do?

I meant it doesnt make sense that it's so effective

[LlamaDom]

interesting that its almost on par with mantle, cool tho

 

AMD worked very closely with Microsoft when developing DX 12, that is probably why.

[The Benjamins]

I meant it doesnt make sense that it's so effective

that benchmark is designed to show how bad DX11 is with draw calls and how good mantle is at draw calls. so it shows that in a CPU/draw call limited scenario it will give that improvement.

[Zaryab]

Damn it, dupe of a different thread. Please close.

http://linustechtips.com/main/topic/305586-anandtech-reviews-directx-12-star-swarm/

 

 

 

Anandtech just released a Win 10 DX 12 preview with some NVIDIA and AMD cards.

 

http://www.anandtech.com/show/8962/the-directx-12-performance-preview-amd-nvidia-star-swarm

 

From the benches, DX 12 is looking good so far.

 

 

DX12 main point is to have games that are dependent on CPU's be directed towards the GPU right? So that being said terrible fucking games like ARMA 3 which we all know run like crap on AMD cpus well because that game doesnt depend on your gpu as much as your cpu. My question is will i see a big improvement on those games with my AMD fx 8320? I sure hope so then i dont need to get an i5 4690k..

[The Benjamins]

DX12 main point is to have games that are dependent on CPU's be directed towards the GPU right? So that being said terrible fucking games like ARMA 3 which we all know run like crap on AMD cpus well because that game doesnt depend on your gpu as much as your cpu. My question is will i see a big improvement on those games with my AMD fx 8320? I sure hope so then i dont need to get an i5 4690k..

in short yes. the api more efficiently use the cpu so it will not bottleneck, and can use more cores/threads

[The_Strict_Nein]

It doesn't make sense that the performance gap is so huge. It really shouldn't have been that effective

 

The benchmark is specifically designed to show the diffrences between high and low level API performance. AS such, results are super exaggerated

 

Kinda like an emissions test between a 1960s Diesel Engine and an electric engine rather than a 1960s and 2015 Diesel engine

[Maslofski]

DX12 main point is to have games that are dependent on CPU's be directed towards the GPU right? So that being said terrible fucking games like ARMA 3 which we all know run like crap on AMD cpus well because that game doesnt depend on your gpu as much as your cpu. My question is will i see a big improvement on those games with my AMD fx 8320? I sure hope so then i dont need to get an i5 4690k..

 

arma 3 runs on DX11, they need to upddate the game to dx12, or wait for arma 4

[spartaman64]

What? This graph makes no sense to me. This shouldn't double framerates

its a custom demo focusing on stressing things that directx12 improves the most above directx11

[PerfectTemplar]

I would say repost, but this OP is better.

 

Looks good.

[Magnificient Potato]

Is it possible to deduce anything at all from how much different result we get between AMD and nVidia cards? The difference from expected values between nVidia and AMD is big in both DX11 and DX12. Or is it purely from bad optimization of AMD drivers for this synthetic test?

[Albatross]

That is a very large gap in performance. I honestly did not expect to see such a radical change.

[PerfectTemplar]

Is it possible to deduce anything at all from how much different result we get between AMD and nVidia cards? The difference from expected values between nVidia and AMD is big in both DX11 and DX12. Or is it purely from bad optimization of AMD drivers for this synthetic test?

People will try to, you can't though.

 

The benchmark is purely to see the comparison between DX11, Mantle and DX12. It isn't supposed to compare graphics cards.

[GeathX]

What? This graph makes no sense to me. This shouldn't double framerates

 

 

It doesn't make sense that the performance gap is so huge. It really shouldn't have been that effective

 

 

I meant it doesnt make sense that it's so effective

 

That feeling is that of your mind being blown at how inefficient DirectX has been up till now

 

You might have some side effects of realising that consoles can do what they do with limited hardware, because they run on software that is even more effient that DX12

[Nielips]

The benchmark is specifically designed to show the diffrences between high and low level API performance. AS such, results are super exaggerated

 

Kinda like an emissions test between a 1960s Diesel Engine and an electric engine rather than a 1960s and 2015 Diesel engine

Diesel engines are actually bad in terms of emission reductions compared to petrol cars. Also the fact that DX12 is comparable to Mantel in terms of fps puts me off a bit, as in BF4 when using Mantel, it makes the game unplayable. It does increase maximum, but it cause frequent drops, and stuttering. Is this a problem that could be in DX12, or is that just a mantel thing.

[ACatWithThumbs]

It doesn't make sense that the performance gap is so huge. It really shouldn't have been that effective

Lol how do you think a game like GTA V can run on a ps3.

The difference is huuuuuge.

The only reason why games like Battlefield 4 had a small difference with Mantle is because the game was designed for DX11.

[Humbug]

A quote from the Anandtech article

Under DirectX 11 the bulk of Star Swarm’s batch submission work happens under a single thread, and as a result the benchmark is effectively bottlenecked by single-threaded performance, unable to scale out with multiple CPU cores. This is one of the issues DirectX 12 sets out to resolve, with the low-level API allowing Oxide to more directly control how work is submitted, and as such better balance it over multiple CPU cores.

 

 

Yes the above is an edge case scenario with over 100,000 draw calls per frame. But it does demonstrate that even on an overclocked i7 4960X the Nvidia drivers becomes CPU limited much more easily in DirectX 11. The Nvidia DirectX 12 driver was entirely GPU limited, only becoming CPU limited when you went down to 2 cores, and even at that configuration the 980 was able to pump out double the framerate of DX11.

 

In real world applications we are going to see a plethora of different bottlenecks/complications so obviously you will not see gains of the same magnitiude. However devs seem to agree that achieving this kind of CPU load distribution was much much more difficult if not impossible using the old graphics APIs. So this is an important step forward for the industry.

 

The fact that some of you are not currently CPU limited in most games that you play does not mean that it's not important. Good optimization means doing things in the most efficient manner at every stage of the process, regardless of whether or not you can brute force it. Not to mention freeing up CPU resources means that devs can use that CPU power for other sub systems such as AI, for example think about the number of RTS and MMO games which get CPU limited so easily today as the number of units ramp up even on powerful Intel CPUs. An API which can render the same scene with less CPU time is clearly an example of superior engineering. It's clearly doing something right.

 

If DX12 and OpenGL Next can do this it is good for everyone. GPUs are becoming faster and faster at a great pace, it doesn't show any signs of slowing down. On the other hand single core CPU performance seem to have stagnated over the last 4 years both from Intel and AMD. What this trend means is that CPU bottlenecks are going to become more and more significant if we continue to do things using legacy techniques.

 

Try to look beyond how many frames per second more you can get today in BF4 and think about the industry direction...