AMD Dual Graphics Analysis: Better Benchmarks; Same Experience?
AMD's Dual Graphics technology gives APU owners the ability to add a discrete GPU to their platforms for better performance. We take a close look at the results, both in terms of frames-per-second and experiential smoothness, thanks to captured video.
Results: F1 2012
AMD's CrossFire technology for APUs and GPUs provides a small but measurable speed-up in this title. Only the Radeon HD 7750 gives us more than a 30 FPS minimum at these settings.
Dual Graphics appears to register more peaks and valleys than one GPU working alone when we plot frame rate over time.
In Dual Graphics mode, the Radeon HD 6670 cards exhibit a big increase in frame time variance. Let's see how that translates to real-world gameplay:
Regardless of Fraps telling us that the average frame rate is higher, AMD's Radeon HD 6670 DDR3 in Dual Graphics mode has just as many stuttering issues as the A10-6800K APU, if not more. Once again, the Radeon HD 7750 runs smoothly.
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beta212 Hmm, IDK, I feel like there is definitely a performance boost in certain games that are just bordering on playability. That said, if you want really good graphics, why not buy the Athlon with disabled GPU cores? Same goes for the intel P series. Just add a discrete card.Reply -
17seconds "That's just not right."Reply
If I had just paid good money for a new graphics card for Dual Graphics, I'd be feeling pretty well cheated out of my money right now. -
joytech22 The drivers tested in this analysis are a tiny bit too old, just before the Crossfire Frame Pacing fix was released.Reply
Could we see this performed again with Catalyst 13.8?
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cleeve 11356019 said:The drivers tested in this analysis are a tiny bit too old, just before the Crossfire Frame Pacing fix was released.
Could we see this performed again with Catalyst 13.8?
See page 2:
"You'll notice that we're using the Catalyst 13.6 Beta 2 driver instead of Catalyst 13.8 Beta, which adds a frame pacing feature for smoother, more consistent output. AMD tells us that the new driver does not affect Dual Graphics configurations. It only works with multiple discrete GPUs. Rest assured that the configuration we're presenting is as up to date as possible."
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Calculatron Despite the bad news, I think this article was just what a lot of people needed. It helps clears up a lot of confusion and hearsay about AMD Dual Graphics options, like the being able to enable the Radeon HD 7750, or if GDDR5 makes any difference or not. More importantly, it shows how important software optimization is for product performance, and hopefully AMD strives to eliminate similar issues in the future.Reply
As this issue unfolds, I hope there are as informative follow-ups to accompany them. Good job! -
rpgplayer Well, now I see that my Llano box I built for a media center 2 years ago will be completely rebuilt rather than getting an add in card. If AMD's next gen APU will use the FM2+ boards as well I may go that route. If not, I'll probably wind up dumping AMD all together and go with an Intel rig.Reply -
If only AMD spent more of their time and their resources on software optimization rather than on those competition-bashing ads. Seeing some silly ads or reading about some flip/flopping (I now get paid by a different overlord) salesman, bashing Intel or nVidia products, does not instill the confidence in buying AMD products, specifically their APUs and (professional) GPUs. I really do want to buy your stuff AMD; less marketing more software development...pleeease.Reply