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Helios1234 Posts: 2570 Joined: 2009-02-17 |
#24806 Posted on: 24.04.2012 20:03:27
Awesome stuff, that's some serious horsepower there. I remember when using SLI GTX580 that sometimes the cards wouldn't perform at 100% gpu usage. I wonder if this was the case here as it explains why SLI scaling is worse than XFIRE. To get 100% gpu usage from both Nvidia cards needed much higher settings so both cards could be stressed which lead me to think that Nvidia effectively reduce the performance of the cards under less stress and thus making it less comparable to AMD's method through Crossfire. It would be interesting to see a graph comparing scaling at 1920x1080 and 2560x1600. One note I'd like to make is the last set of graphs. Rather than doing it the way you have, you should have the single gcards at 100% and then multi-card performance relative to the 100% base value. It makes it much easier to visualise and work out the results/performance benefits. |
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PCplod Posts: 759 Joined: 2011-10-13 |
#24811 Posted on: 25.04.2012 00:03:22
Wow, super comparison mate! well done Something I've been interested to see in a while, nobody else has bothered to take the time and effort to do it. IMO as it stands the 680 is best for single screen and 1080p, then the 7970 looks better for high resolutions with multiple card set ups. The price its at nearly £100 cheaper plus a bunch of free games I think the 7970 is very good value indeed atm, hopefully Nvidia drop the prices on the 680's as its very much needed and Im not buying one untill they do |
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Tammyplanet VTZ Newbie Posts: 7 Joined: 2011-11-25 |
#24816 Posted on: 25.04.2012 02:41:16
wow! that's just insane! Never seen a Quad SLI and Quad Crossfire before. LOL. |
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BurningFeetMan VTZ Newbie Posts: 104 Joined: 2012-01-06 |
#24818 Posted on: 25.04.2012 07:04:07
nice review mate, got to play with a lot of monies worth there Those 7970 really do scale well! I think with future driver updates the 680 could scale just as well which could alter the results somewhat. As it stands a 680 seems the best choice for single gpu and 7970 for multi card setups. I would of been interested to see a small review on 3d on those 680s, doesn't seem many people review 3e.g. |
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w3bbo Posts: 606 Joined: 2011-04-21 |
#24819 Posted on: 25.04.2012 07:36:34
Cheers for the feedback guys. I'd like to say it was a pleasure reviewing the two setups but in all honesty it was bloody hard work. I toasted a windows install thanks to the 1200W PSU giving up during overclocking. Couldn't for the life of me figure out why SLIx4 wouldn't work (4th card was set to PhysX!!) and to top it all off both AMD and NVIDIA drivers are very sketchy and unpredicatable when all cards are installed making getting predictable results very difficult indeed. I wanted to do a line graph to show scaling but whicever way I did it, it just didn't look right. I see what Helios is saying though and will throw some samples up with the other editors too see what they think. I'm working on getting some more screens including 3D and Eyefinity but these don't come cheap. I expect criticism by using 'older' NVIDIA drivers but I was in a no win situation here. Use the latest drivers and people will moan that PCIe 3.0 is not enabled for NVIDIA and claim bias. Use older ones (with PCIe 3.0 enabled) and people moan that they are out of date. The only way you can correctly review two product lines is to use the same setups. While the differences between PCIe 2.0 and 3.0 are minute at present, using PCIe 3 one one card and PCIe 2 on another you may as well use two different motherboards which is not the way it should be done. |
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BurningFeetMan Posts: 104 Joined: 2012-01-06 |
#24820 Posted on: 25.04.2012 07:59:40
what do you mean you can't afford 3 30" 3d monitors It's obvious your in a no win situation with drivers mate, don't think anyone could criticise you |
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PCplod Posts: 759 Joined: 2011-10-13 |
#24822 Posted on: 25.04.2012 08:09:18
Yeh must have been a good bit of work, but its much appreciated |
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Helios1234 Posts: 2570 Joined: 2009-02-17 |
#24823 Posted on: 25.04.2012 08:15:58
Quote:
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w3bbo Posts: 606 Joined: 2011-04-21 |
#24825 Posted on: 25.04.2012 08:35:45
Quote:
Like I say - no win |
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w3bbo Posts: 606 Joined: 2011-04-21 |
#24827 Posted on: 25.04.2012 09:27:51
Yeah sadly my wages won't stretch to that mate. Maybe I could sell a kidney ....hmmm |
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Mishima Administrator Posts: 4323 Joined: 2009-07-28 |
#24828 Posted on: 25.04.2012 09:59:27
I'd buy one! Great review mate and no matter which way you go with drivers there will always be comments made 'for' and 'against'. Very well written and comprehensive. Looks like I'm best to go with 680 for my own personal rig, will wait for more custom cards to arrive I think! |
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Helios1234 Administrator Posts: 2570 Joined: 2009-02-17 |
#24830 Posted on: 25.04.2012 11:02:30
Quote:
Personally, I think you might be right in your choice, after all I very rarely saw significant performance boosts going from release drivers to the first official release but then I would always check if that was actually the case. |
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Essexraptor Administrator Posts: 323 Joined: 2010-09-27 |
#24852 Posted on: 26.04.2012 08:16:51
A lot of hard work Webbo - thanks Unfortunately ..... I think your own conclusion summed it up... a waste of time and far to costly for very little gain. It's the domain of idiots with very deep pockets quite frankly or a stack of freebies sitting around in a review office. I'm still not convined about setups beyond a single powerful GPU give significant % benefits to the end user. AMD GPU's have the edge in the ability to run more than 2 screens on a single unit. Why the hell Nvidia still have not gone this route is beyond me? Keep up the good works |
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PCplod Administrator Posts: 759 Joined: 2011-10-13 |
#24853 Posted on: 26.04.2012 08:40:06
Quote:
And about Nvidia cards only outputting to a max of 2 screens, they have with the new 680 made it so it can output multiple screens just like the AMD cards |
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Essexraptor Administrator Posts: 323 Joined: 2010-09-27 |
#24854 Posted on: 26.04.2012 08:49:05
Yup... Nvidia catching up but only on the most expensive flagship model You really going to shell out £450 - £600 for the pleasure when a 5, 6 or 7 series AMD can and has been able to power 3 screens easily for many years? at a fraction of the cost? clear case of "no brainer" |
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PCplod Administrator Posts: 759 Joined: 2011-10-13 |
#24855 Posted on: 26.04.2012 08:53:02
Im pretty sure Nvidia have this for all their 6** series cards, better late than never hey! We've always known that Nvidia cards couldn't so that the only option was AMD if you wanted 3+ screens on one card, but now you have more options because Nvidia has finally enabled it on there cards, so from that perspective it is only good, you cant really moan about the past |
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Essexraptor Administrator Posts: 323 Joined: 2010-09-27 |
#24858 Posted on: 26.04.2012 09:19:08
We just should be more responsible and beat it into our computer techie brethern that you have to scale these things realistically. Fine if you want to run dual, triple or quad GPU's but the bottom line is that if your running a single 24 - 27 " screen... more fool you. Just consider the practical side of things when running say ... a single 30" monitor. How far do you have to sit away from it to make it comfortable for more than 30 mins at a time? Does that exrta 5 - 8%, or whatever the nice data graphs show, actually make you a better gamer... if that's your bag? I suggest NOT !!! Running 3 (24") screens myself off a single 5970 it's actually more comfortable to play windowed on center screen and run other programs, mail, skype, TS3 etc, on the outside screens. O... and I'm still c... at gaming |