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View Full Version : MAXPC investigates IQ differences between nVidia and ATI


cvearl
01-30-08, 04:36 PM
Source: The Tech Report (http://www.techreport.com/discussions.x/14032)

Not so long ago, ATI was reputed for providing higher image quality than its competitor. With the rising popularity of DVI monitors and the improved filtering algorithms of Nvidia's GeForce 8 series, though, differences seem to have largely been ironed out. Or have they? To find out, the folks at Maximum PC have run an elaborate test (http://www.maximumpc.com/article/videocard_image_quality_shootout)to compare the image quality of an AMD Radeon HD 3870 CrossFire rig with that of an Nvidia GeForce 8800 GT SLI rig in gaming, high-definition video watching, and photo viewing.

The test involved 18 participants, for whom Maximum PC largely obscured the nature of the test and the underlying hardware. Participants were simply asked to say whether they thought system A or system B had the best image quality or whether they were the same, and Maximum PC created a control group to make sure the results were valid.

All in all, users' preferences were mixed. AMD had a slight lead overall, with eight votes to six for gaming, seven to five for HD video watching, and six to four for photo viewing. Nonetheless, some users said they could see no differences between the two systems, and others mistakenly stated a preference for one particular system when they were shown two SLI rigs or two CrossFire rigs.

They are very close now obviously. But testing only one game is not fair and could easily swing the other way to nVidias favor. And this is only one set of tests. Would be nice to do 5 sets of 20 different people maybe.

Interresting read non the less.

Thanks to Android1 over at www.Rage3d.com for the find.

C.

Vasot02
02-05-08, 12:17 PM
Not so long ago, ATI was reputed for providing higher image quality than its competitor


The days that ATI had better IQ quality are over

Both Nvidia and ATI have similar IQ now

Blacklash
02-05-08, 02:38 PM
IMO 18 people is far too small of a pool. It's also worth noting nVidia cards default to quality, not high quality settings. So if they didn't adjust that all games where played with quality settings instead of HQ.

cvearl
02-06-08, 01:00 PM
IMO 18 people is far too small of a pool. It's also worth noting nVidia cards default to quality, not high quality settings. So if they didn't adjust that all games where played with quality settings instead of HQ.

In which case, review sites MUST start using HQ filtering mode in benchmarking tests because most nVidia owners I know use exclusively HQ mode to remove the optimizations that are in the default Quality mode.

The hit is small in that mode across most games so I am not sure why they dont install the driver with that as the default any flippin way.

C.

XDanger
02-07-08, 04:54 PM
"We chose the cinematic built-in benchmark from World in Conflict. In order to achieve the smoothest frame rate, we reduced the game’s resolution to 1280x800,
set most of its values to MEDIUM, and turned off the water-reflection settings.
This enabled both cards to run the demo at about 40 frames per second...."

Well done!

If it was about IQ why not just show still frames with everything at maximum?