Snapdragon 870 - short test

[damgone]

Hello,

a week ago my Poco F3 arrived. I am following with some frame rates in some games.

The general specs:

Device: Poco F3 256 GB
Processor: Snapdragon 870
Graphics: Adreno 650
Display: 2400 x 1080 FHD+, aspect ratio 20:9
RAM: 8 GB
Cost of the phone: round about €350 (Germany)

General test settings:
Video Backend: OpenGL
Shader Compilation Mode (SCM): Synchronous
Aspect Ratio: Force 16:9
Internal Resolution: 2x (1280x1056) for 720p
Full-scene Anti-aliasing: 2x
Anisotropic Filtering: 4x
Post-Processing Effect: FXAA
Audio Stretching [Y]
Emulated CPU Clock Speed: 80%


Ok, lets go to the tests.

GameCube:
NFS Most Wanted 50Hz Mode: 30-50 fps. If SCM  is on "Skip Drawing" it is pretty good playable with only a few audio artifacts.
4x4 Evo 2: 55-60fps. Even on the biggest Maps it feels smooth and pretty good. No audio errors noticed.
Metal Gear Solid: The Twin Snakes: 22-55fps. With heavy drops, but if SCM is turned to "Skip Drawing" the game is good playable.

Wii:
Call of Duty Black Ops: 19-33fps. Not really playable. Turn SCM to "Skip Drawing" and the game become playable. Had some minor blinking texture bugs. But it is playable.
Super Mario Galaxy 2: 16-22fps. Heavy lagging. For a great playable Game with acceptable frame rates turn Full-scene Anti-aliasing OFF, SCM to "Skip and Drawing" and the internal resolution to 1x native.
Super Smash Bros. Brawl: 40-44fps. Turn SCM to "Skip Drawing" and Full-scene Anti-aliasing OFF to get a pretty good playable game.

Bonus:
Citra:
Pokémon Sun: 28-30fps pretty stable. With 2x internal resolution.

PPSSPP:
Final Fantasy VII Crisis Core. 30fps, stable. Even on internal resolution of 10x PSP no frame rate drops noticed.

In my opinion the SD 870 is a pretty good processor to play with dolphin. The Most SD 888 phones cost over €200 more than the €350 Poco F3 with 8 GB RAM. The 6 GB Version can be purchase at €300. The SD 888 would bring about +10% game performance.

Greetings

[nonexist]

Something is wrong with you, my snapdragon 845 performs better, I can play 3x with many games at full speed.

Maybe these settings are killing your performance.

Full-scene Anti-aliasing: 2x
Post-Processing Effect: FXAA

[JosJuice]

Yeah, enabling anti-aliasing tends to kill the performance for me (Snapdragon 855).

[damgone]

Yeah, you're right. The settings with 3x res looks much sharper and had better performance. But FXAA cost only a few fps and the picture is sharper. So i would recommend it.

Nearly all my GC games can run with 3x res and FXAA on good condition with round about 10fps more in these 3 games. My test was designed not to trigger the frame rate limiter. If we go the other way and upscale to 4x Native (2560x2112), the chosen res would outnumber the res of the screen. We would have no advantages from this. so i chose the way over the full-scene anti-aliasing.

Unfortunately, dolphin does not have a system to measure and compare performance on the Android.

[sirdaniel]

How about vulkan backend?

[el_rika]

Be sure to have something like "CPU Float" showing the CPU/GPU frequencies realtime while testing. If there's some throttling going on, or if some cores are left unused, it's valuable info.

[mbc07]

(04-21-2021, 03:35 AM)damgone Wrote: But FXAA cost only a few fps and the picture is sharper. So i would recommend it.

While it's true that FXAA has a minimal performance impact, the picture will never be sharper by using it, as it works by looking at the final image and blurring any jagged edges it detects...

[vlbastos]

(04-22-2021, 03:45 PM)mbc07 Wrote: While it's true that FXAA has a minimal performance impact, the picture will never be sharper by using it, as it works by looking at the final image and blurring any jagged edges it detects...

Not related to this topic, but I've seen an "FXAA Natural" shader somewhere else and I'm curious about it. Seems like FXAA tends to blurry something, I think textures or whatnot, and FXAA Natural is sharper or something like that. Anyone knows something about it? Is it possible to copy this shader to Android Dolphin?

Edit: found it in Citra MMJ (Android). Can I simply copy this shader to Dolphin's Shader folder and use it, or does it need to be adapted?

[vlbastos]

(04-20-2021, 09:09 PM)damgone Wrote: Hello,

a week ago my Poco F3 arrived. I am following with some frame rates in some games.
...

Could you try Mario Sunshine with the 60fps hack? I get about 33~40fps with 2x IR in Snapdragon 865, I'm curious how the 870 performs in it.

[damgone]

(04-23-2021, 11:09 AM)vlbastos Wrote: Could you try Mario Sunshine with the 60fps hack? I get about 33~40fps with 2x IR in Snapdragon 865, I'm curious how the 870 performs in it.

I will try it in the next days