There seems to be quite a fuss about the way ATI forces bilinear/trilinear filtering on their new range of Radeon x800 series of cards following an article posted over at Computerbase.de.
Dave Baumann over at Beyond3D has done a screen grab of compressonator images for Ati's X800 XT, 9800 XT and a Geforce 5950 for comparison.
It certainly looks fishy. I'm keen to hear ATI's response - is it:
a.) "Differences between how R420/RV3x0 handles mip map transistions in comparison to R3x0" b.) "An error in the R420 driver path" - "Its new, we got the settings mixed up" / "Its confused between RV3x0's texturing abilities". c.) "A bug" *cough*
As for the coloured mipmap performance differences - I do believe we've had an explaination on why that isn't necessarily a like for like test somewhere around here before.
Computerbase.de Beyond3D Rage 3D
Dave Baumann over at Beyond3D has done a screen grab of compressonator images for Ati's X800 XT, 9800 XT and a Geforce 5950 for comparison.
It certainly looks fishy. I'm keen to hear ATI's response - is it:
a.) "Differences between how R420/RV3x0 handles mip map transistions in comparison to R3x0" b.) "An error in the R420 driver path" - "Its new, we got the settings mixed up" / "Its confused between RV3x0's texturing abilities". c.) "A bug" *cough*
As for the coloured mipmap performance differences - I do believe we've had an explaination on why that isn't necessarily a like for like test somewhere around here before.
Computerbase.de Beyond3D Rage 3D
