843974 - Intel 9.18.10.3006 driver on HD 4000 affecting Firefox performance but not Chromes

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[Ryan]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0
Build ID: 20130220104816

Steps to reproduce:

Ran ParticleAcceleration and Psychedelicbrowsing with two sets of drivers and got markedly different performance

http://ie.microsoft.com/testdrive/Performance/ParticleAcceleration/
http://ie.microsoft.com/testdrive/performance/psychedelicbrowsing/Default.html

Using the following drivers on Intel HD 4000

9.18.10.3006 and 9.17.10.2963

3006 64bit driver available below
http://www.mediafire.com/?afasq50cnvuh3v6

2963 64bit driver available below
http://www.mediafire.com/?hwxxcm8m1l778co




Actual results:

Tested on FF 20b1 & 19, with the same result

9.17.10.2963 offers normal performance

Psychedelicbrowsing score 4937
ParticleAcceleration score 60fps

9.18.10.3006 offers severely reduced performance

Psychedelicbrowsing score 51
ParticleAcceleration score 6fps

Chrome suffered little no performance drop in either benchmark.



Expected results:

Firefox should not have lost so much performance.

Comment 1

[Ryan]

Have updated to latest released driver 9.17.10.3071(15.31) with the same results.

Comment 2

[Ryan]

Firefox 21 has fixed this. Tested with B6.