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Mantle Feedback/Bugs

After further testing I am getting a large amount of stuttering as some others are also. I know this is probably due to crossfire with my 7970's and I'm sure these will be optimized at some point soon with a new driver,. I can see where everyone is coming from with issues here and there which are going to be the norm with a new release.
I don't think its fair to judge AMD at this point as just 12 hours ago people were shouting "where is it".
Given time I think they will sort it out, I know its frustrating but hey, there is an alternative with DX11 to carry us over.
 
I'm not a hardcore benchmarker but just ran a quick BF4 comparison.

my system
5760x1080
msi r9 290 gaming @ 1100/1400
5670k @ 4.2ghz
16gb ram
BF4 ultra to high settings.

1.Landing on back of carrier 2.running up steps and lots going on!

(Fraps) dx11 13.12

1:49-50 fps
2:40-42 fps

(Realmware) Mantle 14.1beta
1:56-57fps
2:47-48fps

So about 15% quicker for me.
 
Running i7 2600k @ 4.6 g 7990 stock clocks under volted.
Can't see any difference in fps between DX & Mantle.

If anything Mantle is running worse for me. I'm getting huge CPU spikes every few minutes. The screen pauses and the spike line in the performance overlay goes off the screen.
Running DX the spike just goes to the top of the overlay box.

I'm hoping this is a driver problem in beta 14.1. Gone back to DX for now.
 
I gave it a go earlier and saw performance decreases. Now admittedly I'm on a 280X so didn't expect to see any real improvements but I'm getting bigger drops (down to 30fps) and more often. Changed it back to DX and it was much smoother. I'll wait until Mantle is properly supported before trying again.
 
Running i7 2600k @ 4.6 g 7990 stock clocks under volted.
Can't see any difference in fps between DX & Mantle.

If anything Mantle is running worse for me. I'm getting huge CPU spikes every few minutes. The screen pauses and the spike line in the performance overlay goes off the screen.
Running DX the spike just goes to the top of the overlay box.

I'm hoping this is a driver problem in beta 14.1. Gone back to DX for now.

I have the same card and a i5 3570k @ 4.6 and i got these results....

Old drivers...

Min, Max, Avg
29, 58, 39.170

New Mantle drivers...

Min, Max, Avg
45, 65 55.330

Definatly a good difference.
 
full 64 player shanghai same spot as in the empty server test.
dx11 48fps
mantle 82fps

zgle.jpg

ejlo.png
from limited gameplay it feels much smoother on mantle and no drops below 60 in general play BUT....
there is a huge lag spike issue as the game will occasionally freeze for almost a full second. so mantle is currently good and bad
 
I will add this to the OP to clear up some confusion. Read the known issues.

Feature Highlights of The AMD Catalyst™ 14.1 Beta Driver for Windows
Support for the following new AMD Desktop APU (Accelerated Processors) products:
AMD A10-7850K
AMD A10-7700K
Mantle Beta driver
AMD's Mantle is a groundbreaking graphics API that promises to transform the world of game development to help bring better, faster games to the PC
Performance gain of up to 45%(versus the DirectX version) for Battlefield 4 on the R9 290 Series
Performance gain of up to 200% (versus the DirectX version) for Star Swarm on the R9 290 Series
AMD Catalyst 14.1 Beta must be used in conjunction with versions of these applications that support Mantle
It is expected that these applications will have future updates to support additional AMD Mantle features
AMD Mantle Beta driver is currently supported on:
AMD Radeon™ R9 Series GPUs
AMD Radeon™ R7 Series GPUs
AMD Radeon™ HD 7000 Series GPUs
AMD Radeon™ HD 8000 Series GPUs
AMD A10-7000 Series and AMD A8-7000 Series APUs
​​​​​For additional details please see the AMD Mantle Technology FAQ on amd.com​
Enhanced AMD CrossFire frame pacing – Support for 4K panel and Eyefinity non-XDMA CrossFire solutions (including the AMD Radeon R9 280, 270 Series, 7900 Series, 7800 Series) and Dual Graphics configurations​
​​​Frame pacing ensures that frames rendered across multiple GPUs in an AMD CrossFire configuration will be displayed at an even and regular pace
Supported on 4K panels and Eyefinity configurations
Supported on AMD Dual Graphics configurations
Supported on DirectX® 10 and DirectX 11 applications​​​
Resolved issue highlights of AMD Catalyst 14.1 Beta​​
Resolves ground texture flickering seen in Total War: Rome 2 with high settings (and below) set in game
Resolves flickering texture corruption when playing Call of Duty: Ghosts (multi-player) in the space station level

Resolved Issues

Ground texture flickering seen in Total War: Rome 2 with high settings (and below) set in game
Flickering texture corruption when playing Call of Duty: Ghosts (multi-player) in the space station level
Blu-ray playback using PowerDVD black screen on extended mode
Streaming VUDU HD/HDX content on Sharp PN-K321 (DP) causes the right-side half to flicker in and out
Black screen happened after wake up the monitor
Full screen issue at rotation in DX9 mode
Video window black screen when using Samsung Kies to play video
Crysis2 negative scaling in outdoor scene
Crysis2 has insufficient CrossFire scaling in some scene
Red Faction: The game has no or negative crossfire scaling with DX9 and DX11
Age of Conan has corruption and performance issues with crossfire enabled
Company of Heroes shadows are corrupted when using crossfire
Resident Evil5 's performance is unstable when display mode set to Window mode
Total War: Shogun 2 flickering menu/text
Frame rate drop when disabling post-processing in 3DMark06
Negative Crossfire scaling with game "The Secret World" in DX11 mode
F1 2012 Crashes to desktop
Tomb Raider Hair Simulation Stutters on CFX
Negative CrossFire scaling experienced in Call of Duty
Battlefield 3 performance drop on Haswell systems
Choppy video playback on 4k Video
VSync ON Tearing with 2x1 Eyefinity SLS CrossFire
Far Cry 3 - Game flickering while changing resolutions
Display corruption and BSOD occurs when extending a display after disabling Multiple GPU SLS array
Flickering seen when enable three 4kx2k panels at the same time
No Video, just a black screen when setting Chrome to run in "High Performance" when playing certain video clips
Image crashed on Starcraft game

Known Issues

Mantle performance for the AMD Radeon™ HD 7000/HD 8000 Series GPUs and AMD Radeon™ R9 280X and R9 270X GPUs will be optimized for BattleField 4™ in future AMD Catalyst™ releases. These products will see limited gains in BattleField 4™ and AMD is currently investigating optimizations for them.
Multi-GPU support under DirectX® and Mantle will be added to StarSwarm in a future application patch
Intermittent stuttering or stability issues may occur when utilizing Mantle with AMD CrossFire™ technology in BattleField 4™ - AMD recommends using the DirectX code path when playing Battlefield 4 with multiple GPUs. A future AMD Catalyst release will resolve these issues
Notebooks based on AMD Enduro or PowerXpress™ technologies are currently not supported by the Mantle codepath in Battlefield 4™
AMD Eyefinity configurations utilizing portrait display orientations are currently not supported by the Mantle codepath in Battlefield 4™
AMD Eyefinity technology is not currently supported in the Star Swarm​ application
AMD testing for the AMD Catalyst™ 14.1 Beta Mantle driver has been concentrated on the following products: AMD Radeon™ R9 290X, R9 290, R9 280, R9 270, R7 260X, R7 260, HD 7000 Series, HD 8000 Series, A10-7850K and A10-7700K. Future AMD Catalyst™ releases will include full test coverage for all AMD products supported by Mantle.
Graphics hardware in the AMD A10-7850K and A10-7700K may override the presence of a discrete GPU under the Mantle code path in Battlefield 4™
Frame Pacing for Dual Graphics and non-XDMA configurations above 2560x1600 do not currently work with Battlefield 3 and Battlefield 4. An upcoming release will enable support
DX9 Dual graphics is not supported in AMD Catalyst 14.1 Beta. An upcoming release will enable support
 
Overall i think it's a good, positive start for Mantle, the performance is definitely there and easy to see, although if only for single 290/x users at the moment.

Performance has increased by around 15-20% for me which is great.

It's not without issues though and tbh, i didn't expect anything different, i get stuttering occasionally with by the looks of things seems to be a memory leak issue.
But i have no doubt that in the coming weeks these problems will be ironed out and all GCN cards will get support aswell as a crossfire fix.

very much looking forward to Thief now and what improvements that will bring over DX.
 
Oxide Star Swarm. (Follow)

AMD Phenom II x6 1090T @ 3.2Ghz (stock)
AMD Radeon 7870XT @ 1200 / 1600

DX: 17.78
Mantle: 35.16 (+98%) :eek:

DX.
===========================================================
Oxide Games
Star Swarm Stress Test - ©2013
C:\Users\no one\Documents\Star Swarm\Output_14_02_02_1436.txt
Version 1.00
02/02/2014 14:36
===========================================================

== Hardware Configuration =================================
GPU: AMD Radeon HD 7800 Series
CPU: AuthenticAMD
AMD Phenom(tm) II X6 1090T Processor
Physical Cores: 6
Logical Cores: 6
Physical Memory: 8549396480
Allocatable Memory: 140737488224256
===========================================================


== Configuration ==========================================
API: DirectX
Scenario: ScenarioFollow.csv
User Input: Disabled
Resolution: 1920x1080
Fullscreen: True
GameCore Update: 16.6 ms
Bloom Quality: High
PointLight Quality: High
ToneCurve Quality: High
Glare Overdraw: 16
Shading Samples: 64
Shade Quality: Mid
Deferred Contexts: Disabled
Temporal AA Duration: 16
Temporal AA Time Slice: 2
Detailed Frame Info: Off
===========================================================


== Results ================================================
Test Duration: 360 Seconds
Total Frames: 6403

Average FPS: 17.78
Average Unit Count: 3922
Maximum Unit Count: 5522
Average Batches/MS: 377.86
Maximum Batches/MS: 800.55
Average Batch Count: 24121
Maximum Batch Count: 132184
===========================================================

Mantle.
===========================================================
Oxide Games
Star Swarm Stress Test - ©2013
C:\Users\no one\Documents\Star Swarm\Output_14_02_02_1443.txt
Version 1.00
02/02/2014 14:43
===========================================================

== Hardware Configuration =================================
GPU: AMD Radeon HD 7800 Series
CPU: AuthenticAMD
AMD Phenom(tm) II X6 1090T Processor
Physical Cores: 6
Logical Cores: 6
Physical Memory: 8549396480
Allocatable Memory: 140737488224256
===========================================================


== Configuration ==========================================
API: Mantle
Scenario: ScenarioFollow.csv
User Input: Disabled
Resolution: 1920x1080
Fullscreen: True
GameCore Update: 16.6 ms
Bloom Quality: High
PointLight Quality: High
ToneCurve Quality: High
Glare Overdraw: 16
Shading Samples: 64
Shade Quality: Mid
Deferred Contexts: Disabled
Temporal AA Duration: 16
Temporal AA Time Slice: 2
Detailed Frame Info: Off
===========================================================


== Results ================================================
Test Duration: 360 Seconds
Total Frames: 12659

Average FPS: 35.16
Average Unit Count: 4243
Maximum Unit Count: 5548
Average Batches/MS: 646.96
Maximum Batches/MS: 1574.87
Average Batch Count: 21255
Maximum Batch Count: 115746
===========================================================

Humbug, Did you notice if the GPU usage or CPU usage went up when running This ?
 
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