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[xbit labs] MSI lightning 7970OC vs GTX 680 DC2 TOP OC head to head - Page 8

post #71 of 137
6/17/12 at 7:51am
I'd like to see some 1.3ghz benches from both cards. I've never actually seen a comparison done at that high an overclock.


That hexus review that tests the 7970 at 680 speeds is worthless. Number one because 1006 isn't what *any* 680 actually runs at and number two because the 7970 has better overclocking headroom.
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post #72 of 137
6/17/12 at 7:52am
Quote:
Originally Posted by MACH1NE View Post

any eta on nvidia cards which will enable voltage control?

EVGA gtx680 classified. needs some add-on board or something and will have 4GB of vram and retail for $650+.
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post #73 of 137
6/17/12 at 7:54am
Quote:
Originally Posted by dph314 View Post

And who said the 680s don't run cooler? In SLI @ 1285mhz mine have no problem staying below 70C.
I did. Reference Kepler runs hotter at stock settings:

46461.png
load%20temp.png
gpu-temps.gif

People consistently say that Kepler is faster, consumes less power, runs quieter and runs cooler than Tahiti. This is not true. The very reason why it runs quieter is the same reason it actually runs hotter -- AMD runs a more aggressive fan curve. Is it faster overall while consuming less power? Yes. But it does not run cooler at stock.
Edited by Homeles - 6/17/12 at 7:58am
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post #74 of 137
6/17/12 at 7:55am
Quote:
Originally Posted by 3930K View Post

Id have accepted the hexus review if the 7970 was at the 680s average boost clock. But no. It's in it's base clock.
Sent w/ a 670.
Quote:
AMD Radeon HD 7970 @ GTX 680 speeds 1,058
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post #75 of 137
6/17/12 at 8:07am
Quote:
Originally Posted by cold2010 View Post

Quote:
Originally Posted by 3930K View Post

Id have accepted the hexus review if the 7970 was at the 680s average boost clock. But no. It's in it's base clock.
Sent w/ a 670.
Quote:
AMD Radeon HD 7970 @ GTX 680 speeds 1,058

I'm sure any gtx600 owner will tell you that the cards only ever clock to that low boost speed in cpu intensive rpgs or games that can run at 60fps on a console. Every single game in these charts would have the gtx600's running ~1100mhz boost at least. Mine does 1229mhz to 1293mhz out of box in most of these.
Warning: Spoiler! (Click to show)
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post #76 of 137
6/17/12 at 8:09am
Quote:
Originally Posted by Benchmarksli View Post

The 7970 lost EVERY bench except AVP. rolleyes.gif I'm still not seeing the "few others" you saw in this review. (The Hexus review)

You can get your benches from a site which just throws out bar charts or you can get one from a site which does a 10 min fraps runthrough and posts the exact fraps graph for a better understanding. I would trust the latter. biggrin.gif

http://www.hardocp.com/article/2012/04/10/sapphire_hd_7970_oc_edition_video_card_review/7
http://www.hardocp.com/article/2012/05/21/asus_geforce_gtx_680_directcu_ii_top_gpu_review/4
http://www.hardocp.com/article/2012/06/04/galaxy_geforce_gtx_670_gc_video_card_review/4

BF3 2560 X 1600 Ultra 4X MSAA

Sapphire HD 7970 (1280) - avg 50.7 min 34
ASUS GTX 680 (1291) - avg 51.3 min 30
Galaxy GTX 670 (1280) - avg 48.4 min 28

Skyrim

From the ASUS GTX 680 TOP review
"The AMD Radeon HD 7970's SSAA option is much more demanding than NVIDIA's option". "The level of SSAA for AMD video cards is based off the level of MSAA that is selected."

here they mean AMD SSAA (8X) is more demanding than Nvidia TR SSAA 8x

2560 x 1600 8X AA + FXAA + SSAA + 16 AF
Sapphire HD 7970 OC (1280) - avg 66.2 min 27

2560 x 1600 8X AA + FXAA + 8X TR SSAA + 16 AF
ASUS GTX 680 (1291) - avg 54 min 32
Galaxy GTX 670 (1280) - avg 56.5 min 29

The Galaxy 670 OC did better than ASUS 680 OC because it did better on memory overclocking. It makes it very clear that the GTX 600 cards are running short on bandwidth.

The fraps graph shows the HD 7970 OC (1280) goes below 30 fps once for a small fraction and remains above 50 fps throughout and dipping below 50 fps once.

The GTX 680 and 670 also get close to 30 fps once . but they can't maintain higher fps especially in the second half of the fraps run wrt HD 7970 OC.

Here is the raw power and bandwidth of the HD 7970 making a difference in skyrim with SSAA which requires lots of bandwidth smile.gif
Edited by raghu78 - 6/17/12 at 8:13am
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post #77 of 137
6/17/12 at 8:52am
Quote:
Originally Posted by WizrdSleevz View Post

If you feel that way & have a older model 7970.. only 1 thing you can do.. OVERCLOCK it thumb.gif

I've been doing it since day 1. thumb.gif The 7970 is a card designed to be overclocked and needs to be overclocked. Anything less is selling yourself short.

Those benchmarks are pretty impressive. Clock for clock they perform very similarly.
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post #78 of 137
6/17/12 at 9:01am
Quote:
Originally Posted by Sapientia View Post

This argument is entirely ridiculous. Why is the 680 called mid range? Mid range implies there's something above it-- there isn't. The fabled GK100 never came to market, and may have never even seen the light of day. The decision to make GK104 the flagship Geforce card was made long before Nvidia knew of Tahiti.
As for AMD releasing the Ghz edition, I don't see how they're ripping off their customers. The 28nm process is simply maturing, and they're able to make higher clocked cards now than they were in December of 2011. Intel and AMD release new steppings of CPUs all the time, but no one seems to make an argument against it. Because pushing more mature fab processes just makes sense.

This has been discussed over and over again. The end result is always the same though, the consumer loses and Nvidia wins.

From the point of consumers GK104 is high end with the price tag, marketing, nothing higher end being available etc. But for Nvidia GK104 is mid range since it's the same size as their mid range chips, it's cheap to make, it has mid range specs etc.
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post #79 of 137
6/17/12 at 9:14am
Quote:
Originally Posted by raghu78 View Post

You can get your benches from a site which just throws out bar charts or you can get one from a site which does a 10 min fraps runthrough and posts the exact fraps graph for a better understanding. I would trust the latter. biggrin.gif
Since you basically post the same replies in every thread you show up in, I'll go ahead a post my reply to you over a month ago...

Exhibit A:
Quote:
Batman Arkham City 2560 X 1600 FXAA high
HD 7970 (1280) - avg 62.2 min 36
GTX 680 (1291) - avg 55.6 min 37

Batman benchmark taken from the SAME review with both cards tested...AMD Shill FAIL!
GTX 680 1228MHz 55.7=30min
HD 7970 1260MHz 56.2=26min

325

The AMD card is clocked higher and loses in this bench due to minimum fps.
Quote:
10% min fps. I consider that significant
-Raghu78

Exhibit B
Quote:
:Battlefield 3 Single player 2560 x 1600 Ultra 4x MSAA
HD 7970 (1280) - avg 50.7 min 34
GTX 680 (1291) - avg 51.3 min 30
HD 7970 has > 10% min fps. I consider that significant

Again, comparing numbers from different reviews is not an honset way to go about it.

Here is a more accurate representation

GTX 680 1228MHz
HD 7970 1260MHz
326

Exhibit C:
Quote:
Elder Scrolls Skyrim 2560 x 1600 MSAA 8X + FXAA
From the Sapphire HD 7970 OC review
"At 2560x1600 with 8X MSAA and FXAA enabled, the Overclocked Sapphire HD 7970 OC Edition had an average FPS in the mid 80's."
HD 7970 (1280) - 85
GTX 680 (1291) - 70.4

This is a PRIME example of patch work benchmark posting. According to that quote you "assumed" that it averaged 85 fps with MSAA enabled ,eventhough they don't have a graph showing that anywhere during the review.

But here is a graph showing performance overclocked vs the GTX 680

GTX 680 1228MHz
HD 7970 1260MHz
327

Even without MSAA enable it failed to reach 85 fps while highly overclocked.

To be fair, I'll also post the Deus EX benchmark that the HD 7970 shines in....well sorta.
327

And since you like pulling quotes, I'll go ahead and pull a few of my own.

Quote:
The GeForce GTX 680 represents a tremendous piece of technology that any gamer should love to have in his rig. The GeForce GTX 670 represents what is easily the best value in enthusiast PC gaming GPUs. Pick your poison.



Kyle and I have both been running Radeon HD 7970 configurations in our primary gaming machines for months now and been happy with these solutions. Both of us are now going Green once again.
-HardOCP

The 7970 was clocked higher in this test but only pulls ahead in Deus Ex. I would like to bench my 1300Mhz agaisnt a 1300MHz 7970 to compare. I'm sure the performance will be very comparable
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post #80 of 137
6/17/12 at 9:17am
Quote:
Originally Posted by Wattser93 View Post

I've been doing it since day 1. thumb.gif The 7970 is a card designed to be overclocked and needs to be overclocked. Anything less is selling yourself short.
Those benchmarks are pretty impressive. Clock for clock they perform very similarly.

Not really. The MSI HD 7970 Lightning clocks of 1165 Mhz in the xbitlabs review are quite low for high end overclocking. The GTX 680 was doing 1277 - 1290 Mhz boost speeds. So the comparison might look a bit better for GTX 680. Sapphire HD 7970 OC and Gigabyte HD 7970 OC have been the best of custom HD 7970 cards when it comes to overclocking.

http://www.hardocp.com/article/2012/04/10/sapphire_hd_7970_oc_edition_video_card_review/3
http://www.hardocp.com/article/2012/02/08/gigabyte_radeon_hd_7970_oc_video_card_review/3

Many users have the ref HD 7970s running at 1300 Mhz on custom air coolers like accelero or water cooling.

When compared across a wide range of games clock for clock HD 7970 is faster. Period.
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