Need for Speed: Underground fps problem

[mimimi]

(08-22-2014, 11:08 AM)Fuszion Wrote: My PC specs are -
AMD FX 8120 3.2 8 core
8gb ddr3 ram
Nvidia Geforce 580 1.5gb galaxy edition
Win 8.1
Now knowing that, could anybody tell me why not a single NFS game can run above 6 to 17 fps?
And truthfully, its not just the fps, the game runs like crap! Its not running like it has bad fps, it runs like I'm trying to play it on a Commodore 64!
If the reason is because my rig is too weak, I'm afraid to ask how good it has to be!

And to be specific about which NFS games I'm talking about.
Underground
Underground 2
Most Wanted
Carbon

I almost don't even care anymore if I can play these games. I more just want to know why I cant!

Your CPU is the problem. Dolphin only uses 2 or 3 threads, so everything above 3 cores is not used at all. And then amd's cpus are way slower per thread per ghz than intel's cpus(single thread performance).

Take a look at this:
http://cpuboss.com/cpus/Intel-G3258-vs-AMD-FX-8120

The cheap dual core pentium g3258 beats your 8-core cpu by about 70% in single thread performance, and i assume the performance difference in dolphin is in the same ballpark. To make things worse, you can overlock that pentium with air cooling above 4 ghz.

[davew_uk]

You might have more luck with a development build - the latest ones are a *lot* faster. I've been running 4.0-3247 and can play all the NFS games (underground, underground 2, most wanted, carbon) in 1080p with antialiasing just fine. My PC is ancient by Dolphin standards (Q6600 OC to 2.8ghz, Nvidia 750ti, 8gb RAM). One thing I did notice is that all the NFS games need SafeTextureCacheColorSamples = 0 to function correctly but apart from that they barely touch the GPU.

Apart from the cutscene videos not working (which I expected as they don't work in almost every EA game and its a known bug) I found one glaring issue that I can't fix - in each game, regardless of whether or not the game is running in 16:9 or 4:3, the image seems to be vertically squashed compared to the PS2 version or on the original hardware.

[ulao]

I also have amazingly slow speeds with those games but my rig is fine. The FPS is so bad its not even watchable, let alone playable.

Dolphin version 4.0-5410. Notes: not using the CPU over clock, nothing on advanced config page.

System notes: Memory is in dual channel. CPU is over clocked to 4.2

see attached image for settings and system details.

[Dolphy]

Enable idle skipping and enable force texture filtering, disable ignore format change and enable XFB to texture

Try that

[ulao]

Ok I found all of that but enable XFB to texture - options are virtual and read, no to texture. I did this remotely so I can not test untill I'm home, but thx can't wait to try it out.

[JMC47]

I think they mean EFB 2 Texture.

[mimimi]

My suggestions about general performance:
- Enable Idle Skipping, if it makes a game slower, there's an option to do something about it, but it's complicated, ask in the forums then
- Switch to HLE audio, unless there are audio problems
- Switch to xaudio on windows, unless there are problems
- Disable per-pixel-lightning, that's a noob trap imho

If you want to test performance:
- Disable vsync, it can kill performance in some situations
- Disable AA, enable again step by step once everything runs as fast as it should
- Try both Direct3D and OpenGL, OpenGL is supposed to be faster on nvidia cards. Keep in mind that there's a different set of settings for each

[ulao]

All of this is helped greatly, thx

[Darkness Knight]

In the last's builds the reflections effect are emulated properly, this cause a negative impact in the performance, my pc is weak for this game.

Salu2 - Darkenss Knight.