ATI 3870 OpenGL Benchies - 10.5.7 v. 10.6 - um, wtf?

[JPamplin]

I didn't expect this one, but perhaps it's a beta thing...

Observe the two benchmarks below. I ran the OpenGL Extensions Viewer tests in 10.5.7 versus 10.6 build 411. It stated that the ATI 10.5.7 driver (version 2.0 ATI-1.5.44) supported 105 extensions, while 10.6 (version 2.1 ATI-6.0.81) supported 111. So I thought, OK, everything's faster in 10.6, yes?

Um, no. Benches on the exact same hardware (my Pro, listed in the sig), show a substantial decrease in FPS on my 3870 in 10.6 versus 10.5. Image on the left: 10.5.7 - image on the right: 10.6

Anyone hazard a guess on this one? JP

 

[Cinder6]

Beta software, using a non-optimized driver?

 

[JPamplin]

Well, maybe - it may be that simple. But there a couple of things that make me wonder.

First, at WWDC Bertrand said that 64-bit operations are inherently faster on 64-bit chips - I have no idea on this, but is the 3870 CPU 64-bit, or is there no frame of reference here? Wouldn't the driver be 64-bit by default?

Secondly, since the new driver supports more OpenGL Extensions, then the OS should hand off a little more to the GPU to handle. This may not affect the benchmark.

It may be a simple matter of bolting in a 32-bit driver into a 64-bit OS.

JP

 

[jalyst]

Is this still the same for you?

cheers,
Jed

 

[ctich]

I didn't expect this one, but perhaps it's a beta thing...

Observe the two benchmarks below. I ran the OpenGL Extensions Viewer tests in 10.5.7 versus 10.6 build 411. It stated that the ATI 10.5.7 driver (version 2.0 ATI-1.5.44) supported 105 extensions, while 10.6 (version 2.1 ATI-6.0.81) supported 111. So I thought, OK, everything's faster in 10.6, yes?

Um, no. Benches on the exact same hardware (my Pro, listed in the sig), show a substantial decrease in FPS on my 3870 in 10.6 versus 10.5. Image on the left: 10.5.7 - image on the right: 10.6

Anyone hazard a guess on this one? JP

Good day, Sorry for my english, but I want to clarify, you have to HD3870 QE \ QI earned in full, if you look at screening, yes?
The video card was for ordinary PC or Mac?
Thank you.