Twilight Princess

[Nubnut]

So I just download Dolphin today in order to play Twilight Princess and it ran alright (some sound crackles here and there) for about half an hour, and then I reached the forest and my FPS has slowed to about 15 FPS. I've tried pretty much every suggestion I can find for changing config and graphic settings in Dolphin to try and boost performance but it's had little to no effect and I still can't get higher than about 18 FPS in a best case scenario.

Am I simply limited by my hardware?:
Windows 7 x64
AMD AMD Phenom II X4 965 (4 cores) 3.4 GHz
AMD Radeon HD 7850 (1 GB vRAM)
Crucial Technology 8 GB RAM

If I have the hardware to run it then can anyone give me some other performance tips that might save the day for me?

[rokclimb15]

Try the latest dev version and see if your performance is any better (try both OGL and D3D backends). Lots of bugfixes have been made that affect TP. In general they mostly reduce performance, but YMMV.

Offhand, your CPU is a little weak to run this game in some places. What are your current settings?

[Nubnut]

I'm using Dolphin 4.0-1340. That's the latest dev build correct?

I'm currently using the D3D backend (I was using the OGL backend before and didn't notice much of a difference in terms of performance). Haven't really touched anything in Enhancements other than turning Internal resolution to 640x480.

Under hacks I have Skip EFB Access from CPU and Ignore Format changes checked, along with Fast Depth Calculation

And I have both dual core and idle skipping enabled.

[kinkinkijkin]

Do not enable Skip EFB Access from CPU. It causes graphical glitches of the sort which aren't hilarious.

Make sure that you do not have a large amount of background applications.

Also, the forest is slow. This game is one of the most demanding on the hardware (both systems), so your puny little Deneb is never going to be able to handle it. Unless someone goes and fixes "our shitty JIT code" - delroth

A way you could fix it is by buying an Intel CPU. Preferably a higher-end Haswell.

[degasus]

Nubnut: Try to use the 4.0 stable version. In the current dev versions, we've remove the ztp speedhack, so zelda twilight princess is much slower now :/

kinkinkijkin: Jit doesn't matter for ztp, it's a video emulation issue. So there is no way (but to code a lot) but to buy a very fast single processing cpu...

[Nubnut]

That did in fact help a lot, FPS went up from about 15 to 24, and VPS went up from about 45% to 80-85%. So it's still running a bit slow but it is actually playable now.

Thank you for the help!