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GerdJ

ATI 4870 in 10.5.7 works, BUT not faster than GeForce 7300?

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Hi there,

 

here's the hole story:

I was running 10.5.5 on my System with a GeForce 7300GT 512MB without problems.

Then (when netkas postet the 4870 Beta drivers long before 10.5.7 came out) I changed the card to a Sapphire 4870 512MB and installed the beta-4870 drivers, system seems ok (accept the problems - see below)

 

Now I updated to 10.5.7 and was thinking that the drivers for 4870 are newer ones (they are in the 10.5.7 update, right?). System is still working and system profiler tells me, that QE and CI are enabled and the resolution is at 1920x1200 at 32bit depth, like with the beta drivers before.

 

Problems are: when I watch movies or photos (truecolor!) the quality of the output looks like 16 bit, in Windows XP the quality is much better. Using Xbench OpenGL Benchmark gives me the same score like the old Geforce 7300GT! ~300 (Q6600 at 3GHz). 4870 should be much faster?!

 

I think, that the drivers are mixed up, if thats possible.

 

How to check the driver version?

Or, how to be sure to use the official 4870 driver?

Is there a way to delete all graphic drivers and install the 4870 drivers fresh from 10.5.7 (not the beta ones!).

 

Sorry, I'm quite a noob, so please help :-)

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XBench is good for nothing in relation to graficcards.

 

Try OpenGlideViewer or OpenMark.

 

Did you use device-props in com.apple.boot.plist??? or DSDT ???

Renew this...

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XBench is good for nothing in relation to graficcards.

 

Try OpenGlideViewer or OpenMark.

 

Did you use device-props in com.apple.boot.plist??? or DSDT ???

Renew this...

 

I only added the time machine fix to com.apple.boot.plist and don't use DSDT.

 

Is this important? Because the 4870 is working (accept the described problems)?!

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No, but you could have graphics card specific intrances in

the bootl.plist or DSDT.

 

I got bad results in Benchmarking with a GF8800

and a DSDT made with a GF7600.

 

Post your results for the ATI with OpenGlideViewer.

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At 1920x1200 I get in OpenGL Viewer

 

1.1 - 1927

1.2 - 1959

1.3 - 1853

1.4 - 1735

1.5 - 1501

2.0 - 1077

2.1 - 138

 

Can test in other resolutions if you like!

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I didn't test the 7300 in OpenGLViewer, so I have no results to compare with. Only the Xbench Results, and they are nearly the same (~300 for 7300 and 4870).

 

Maybe I try a fresh install on my test-hdd ....

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