Originally posted by: Cookie Monster
Originally posted by: M0RPH
Originally posted by: Cookie Monster
Actually i would buy the 100 cheaper 7800GT.
Nvidia right now has the performance/price crown.
Plus the 7800Gt performs better.
Just read the xbitlabs review, and about IQ. The 7 series edges out the X1series in AA (such as 8xS, TSS vs AAA (where ATi blurrs out the jaggies), but the X1 series edging it out in AF IQ.
Both 7 series and the X1 series are good cards, but right now the 7800GT looks to be the better option by far. 100 dollar cheaper, cooler, consumes way less power, and faster than the X1800XL.
Sorry CM but you're sorely misinformed. Look at this picture:
Text
Look at the bottom half of the wall on the left. Huge difference. Can't be any clearer than that. That's just one example. I won't go into all the other ways the ATI IQ is superior. And I won't go into texture shimmering either.
Shimmering... it isnt an issue faced by many people, because the issue was later knowned that it happen by chance, on certain games and its different across different systems. Many dont see the shimmering, but for the ones who do, it was fixed in the 78.03 (78.05?) driver i think it was.
People seriously overplay the shimmering issue.
Anyway back to inform you that the IQ is almost a tie.
Xbitlabs:
AF:
I have to draw your attention to the fact that we haven?t found any real evidence pointing at the significant advantage of the enhanced AF mode over the standard AF mode. In other words, there is no big difference in the image quality of real games between the enhanced anisotropic filtering mode of the new RADEON X1800 XT and the standard anisotropic filtering of the new ATI solutions as well as of the other graphics cards.
AA:
As we can see from the screenshots, adaptive anti-aliasing of transparent textures works fine on RADEON X1000, however, the actual image quality improvement is not that significant, just like in case of alpha-textures multi-sampling by NVIDIA GeForce 7 (TMS, transparent multi-sampling). I have to stress that the Adaptive FSAA of the new RADEON X1000 is of much better quality than the similar mode by GeForce 7800 GTX, however it is still much lower than what the competitor?s TSS (transparent textures super-sampling) would provide.
I would also like to say that adaptive anti-aliasing of alpha textures by RADEON C1800 XT may sometimes lead to their complete removal. In fact, it could be a drive issue, because the anti-aliasing masks can be set on the software level for ATI RADEON solutions.
So, the laurels for the best FSAA quality wills till remain with NVIDIA for now.[/quote]
Hothardware:
[/quote]AA:
If you direct your attention to the water-tower and crane in the background of these images, the impact anti-aliasing has on image quality is readily apparent. In the "No AA" shots it seemed to us that the Radeon X850 XT Platinum Edition and Radeon X1800 XT had the lowest detail, and had the most prominent "jaggies." Look closely at the ladder on the water tower and you'll notice parts missing in the Radeon shots that are there on the GeForce 7800 GTX. With standard multi-sample 4X anti-aliasing enabled, though, it becomes much harder to discern any differences between the cards. The ladder in the background gets cleaned considerably, as do the cables on the crane. The same holds true when ATI's 6X MSAA and NVIDIA's 8xS AA is enabled, although in this comparison, we'd give an edge in image quality to NVIDIA, because the additional super-sampling applied by 8xS AA does a decent job of cleaning up edges of transparent textures.
However, at the very bottom of the page, we've got some screen shots using the Radeon X1000 family's new adaptive anti-aliasing algorithm. Adaptive AA is basically a combination of multi-sampling and super-sampling AA, similar to NVIDIA's 8xS mode, or a combination of NVIDIA's MSAA and the GeForce 7's transparency AA. ATI's adaptive AA mode super-samples any textures that have transparency to reduced jaggies that don't land on the edge of a polygon. There are multiple Adaptive AA modes available with the new X1000 family of cards. When in quality mode, for example, 4X Adaptive AA is a combination of 4X MSAA and 4X SSAA; 6X Adaptive AA is 6X MSAA and 6X SSAA. In performance mode though, the number of samples applied in the super-sample stage are halved (performance mode was not available in the drivers we used for testing). As you can see, ATI's adaptive AA does a great job of reducing jaggies in the scene. Open up a standard 4X or 6X AA shot, and compare the trees and grass in the scene to either of the adaptive AA screens. You'll see a significant reduction in the prominence of jaggies. Overall, we were impressed with the images produced by ATI's Adaptive AA. The X1800 XT produced some of the best images we have seen on the PC to date.
AF:
The same seemed to be true when inspecting the 16x aniso images. Of course, image quality analysis is objective by its nature, but based on these images, we think the GeForce 7800 GTX has the best image quality as it relates to anisotropic filtering when standard "optimized" aniso is used. The new Radeon X1000 family of graphics cards offer another "high quality" anisotropic mode, that doesn't have the same angular dependency as ATI's previous generation of cards. The new high-quality aniso mode offered by the X1000, applies nearly the same level of filtered regardless of the angle. Overall, the effect of enabling ATI's high-quality aniso mode is positive, as it does an even better job of sharpening texture and increasing the detail level. The fully appreciate ATI's high-quality aniso mode though, you've got to see it in action. Still screen shots don't convey the full effect.The same seemed to be true when inspecting the 16x aniso images. Of course, image quality analysis is objective by its nature, but based on these images, we think the GeForce 7800 GTX has the best image quality as it relates to anisotropic filtering when standard "optimized" aniso is used. The new Radeon X1000 family of graphics cards offer another "high quality" anisotropic mode, that doesn't have the same angular dependency as ATI's previous generation of cards. The new high-quality aniso mode offered by the X1000, applies nearly the same level of filtered regardless of the angle. Overall, the effect of enabling ATI's high-quality aniso mode is positive, as it does an even better job of sharpening texture and increasing the detail level. The fully appreciate ATI's high-quality aniso mode though, you've got to see it in action. Still screen shots don't convey the full effect.[/quote]
These some of the sites discussing IQ, while MOST e.g hexus, driverheaven dont really go into looking at IQ.
Your misinformed. And the fact TAA looks better than AAA is another fact you should know about.
[/quote]
AAAAAAAHHHHHHHHHH. Did you see that picture, AF quality on /nvidia is horrid,
And by the way, there is no performance drop with 6XAA for the X1800.
Facebook
Twitter