Originally Posted by WiL11o6
Thanks for taking the time to write out your experience.
When you say the IQ is better, do you think it's a placebo effect because if it's something you notice, then it's a big deal if the 680 offers better performance AND better IQ. I did see Tom's article on how the 7970 sacrifices IQ for performance but it's super pixel peeking if it's true at all. If it was a blind comparison do you think you'd be able to tell the 680 and 7970 apart?
How are games running for you? I know it isn't a super fair comparison because you moved from CF to single 680 but when the 7970s DID work, was it smooth? These are the current games I am playing at the moment: Left 4 Dead 2, BF3, Metro, and Crysis 2. Only L4D and BF3 run flawlessly as in literally, butter smooth. Metro and Crysis 2 can't be said the same. I run a 1080p 60hz Dell U2311h and I enable vsync to eliminate screen tearing and reduce heat+fan noise because it caps my FPS at 60. These two games will 90% of the time stick at 60fps, but very frequently, it would dip to 57-59 causing a millisecond of stutter which is quite annoying, but playable. It would happen at random when nothing is stressing it. I am wondering if this is a game problem, or AMD CF driver problem. It shouldn't be a power issue as when I disable vsync, my FPS is mostly above 100 and doesn't dip into 57-59 as noted.
Does SLI 680 or single have the problems I mentioned for the games of it "stuttering" randomly? My CF has no problem with BF3 and L4D at all, but still sucks as I play these 4 games, and half are somewhat problematic.
Just keep in mind this is purely my opinion, so take it with a grain of salt.
Well, on RC11 for the 7970s I think I would be able to see the difference hands down in BF3. But if it were 12.3, I think it would be a bit harder to see. The place where I think I noticed it most was in Crysis 2, after I put in the 680 I just found myself looking at the game and thinking, wow, this looks really good. I know a lot will disagree about crysis 2 looking good (as a game), but I like that whole plastic, comic-book feel that crysis 2 has, and for me, at least, the 680 seems to provide better IQ, especially in that game. This is all purely my opinion, so please keep that in mind, and I am not basing my opinion on anything scientific, just _my_ impressions and thoughts. The IQ was just something I noticed.
As for performance, in BF3 I can say the 680 has better performance than a single 7970 did before I got the second 7970. I can completely max the game at 1080p, play online, and the 680 is able to mostly keep the frames above what my monitor's refresh rate is. Occasionally it may dip a little below during heavy firefights, but it is safe to say that I am impressed with the 680's performance in BF3. I am not playing with vsync in BF3, so there is slight tearing at times, but the mouse feels better without vsync so I leave it off...I am weird about my mouse movement... No stuttering, or stuttering that I have noticed.
Smoothness wise, I don't know if it is a fair comparison because I went straight from crossfire to a single 680. I can say that the very first thing I noticed when I started a game with the 680 was how dang smooth it was, though.
Crossfire, at least for me, had quite a bit of micro-stutter at first. Once I changed the flip queue to 0 with RadeonPro, though, it was much, much better. My crossfire was never 100% as smooth as a single 7970 was, but smooth enough that the performance boost outweighed any loss of smoothless, or so I felt. If the crossfire 7970s would have been stable, I would still be using them. The scaling with the crossfire 7970s is actually quite impressive.
Metro still feels just as choppy as it did with 7970s, I think that game is just terribly optimized because it feels equally terrible on both AMD and Nvidia. Not too impressed with metro, I didn't see quite the performance boost that I was expecting. It looks good, but not as smooth as I would expect. I think this is more of an issue with the game itself.
Blackops runs well with the 680, I have actually been playing that game in surround with a single 680, and the single 680 seems to have no problem with 5760x1080.
One thing I have noticed, and it may just be that I am extremely particular about my mouse movement, is that with the 680 the mouse feels more 'slippery.' It's hard to explain. It just feels almost too smooth? It's not bad, just something I am having to get used to. I snipe a lot in games, probably 80 percent of the time in online FPS I am sniping, and the mouse movement is definitely a tad-bit different than what I am used to. The only way I can think to explain it is that it feels slippery. It's fast and responsive, but really, really smooth. It sounds crazy, I know, but just thought I would mention it. So yeah, the mouse feels a little different with the 680. lol
In regard to fan noise, let's just say I tested my 7970s for a few minutes with the stock cooler before I put on a waterblock, and my significant other was yelling at me to, and I quote, 'YOU WATER COOL THAT CARD THINGIE RIGHT NOW.' With the 680, and I don't even have a waterblock yet, not one peep out of her. It's only a tad bit louder than the 4 Gentle Typhoons I have in my case when pushing the GPU at 100% usage, and that's with an aggressive fan profile. Keep in mind, I have a huge acrylic case so that may be helping dampen the sound a bit, but overall the noise is nowhere near what the 7970's fan put out.
As for SLI, I cannot really provide anything, I am only using a single 680 at the moment.Edited by svthomas - 4/12/12 at 9:36am