Power, Temperature, & Noise

Last but certainly not least is our look at power, temperature, and noise. If we’ve clearly established that the GTX 560-448 has more in common with the GTX 570 than the GTX 560 Ti in gaming performance, then let’s see if the operational attributes are equally close.

GeForce GTX 500 Series Voltages
Ref 580 Load Ref 570 Load Zotac 560-448 Load
1.037v 1.025v 1.000v

Looking quickly at voltage, our Zotac card is set to 1.0v. This is actually 0.025v less than our reference GTX 570 and GTX 580 cards, though it’s important to note that all of these cards have a wide VID range. Realistically speaking we expect that the GTX 560-448 would have a similar to greater VID range than the GTX 570.

It’s quite interesting to find that idle system power consumption is several watts lower than it is with the GTX 570. Truth be told we don’t have a great explanation for this; there’s the obvious difference in coolers, but it’s rare to see a single fan have this kind of an impact.

Power consumption under load shows a similar benefit. With the Zotac GTX 560-448 we’re drawing 15W less than with the reference GTX 570. Given that the performance of the Zotac GTX 560-448 is so close to the GTX 570, and this actually starts looking like a cheaper GTX 570 with lower power consumption, which is not something we would have expected to find. But at the same time this means load power consumption is still nearly 30W greater than the GTX 560 Ti, is a very distinct difference for two products sharing the same name.

FurMark is thrown in for consistency, but at this point NVIDIA’s driver throttling is so extreme that FurMark is instantly beaten back when started.

When it comes to GPU temperatures, idle temperatures straddle the difference between the GTX 560 Ti and the GTX 570. The open-air cooler is usually better for lower temperatures, but at the same time GF110’s higher idle power consumption negates some of this benefit. In any case it’s still one of the coolest high-end cards at idle.

Meanwhile GPU load temperatures are at the middle of the pack. Like all GF110 products the Zotac GTX 560-448 starts getting toasty under load (even with the open-air cooler), but it’s still noticeably cooler than the GTX 570 and GTX 580. With that said the open-air cooler means that this is going to be case-dependent, so cases with poor airflow would favor the closed coolers of the GTX 570 and GTX 580.

Finally we have our look at noise. The Zotac GTX 560-448 idles just a hair louder than most of our other high-end cards, including the GTX 570.  Under load however that open-air cooler really makes its mark among a crowd of closed coolers, leading to noise levels little above the GTX 560 Ti and remarkably quieter than the GTX 570. On a performance/noise spectrum this is fantastic, but the devil is in the details: you need a case with good airflow to make this happen. Otherwise the Zotac GTX 560-448 ramps up significantly once temperatures approach 90C.

DIRT 2, Mass Effect 2, Wolfenstein, & Compute Performance Final Thoughts
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  • Assimilator87 - Tuesday, November 29, 2011 - link

    Bad drivers are the reason I'm switching back to ATi next round. Six months to fix a very annoying F@H issue is not acceptable in my book.
  • Zed03 - Tuesday, November 29, 2011 - link

    Just keep in mind this review is from the same people that claimed GTX 560 ti is faster than 6950.

    All of these charts were selected to make the the GTX 560 448 look good.

    On the Crysis, Battleforce, and Metro page, when the 6970 has a 30% lead, they call it a:

    "With Metro 2033 we see AMD and NVIDIA swap positions again, this time leaving AMD’s lineup with the very slight edge."

    On the remainder of the reviews, when the GTX 560 448 performs 5% faster in a certain configuration, the performance is "dominating".

    Wait for a real benchmark.
  • Mstngs351 - Wednesday, November 30, 2011 - link

    You may want to drop your biased view of Anandtech and pay closer attention to the article.

    "With Metro 2033 we see AMD and NVIDIA swap positions again, this time leaving AMD’s lineup with the very slight edge." You'll notice that it states "lineup" not 560ti 448.

    You would also do well to notice that when it came to Metro 2033 the 580 was top dog at all resolutions so making the statement that AMD has a "slight edge" is, in my opinion generous.
  • DaveLessnau - Tuesday, November 29, 2011 - link

    This is purely a comment about the editing of the article. I don't know if it's a function of your word processing software or if it's something you did on purpose, but ordinal numbers like 1st, 2nd, 3rd, etc., don't superscript the alpha part. Every time I ran across your superscripted ordinals, my eyes just locked onto the word and I lost track of the article flow. If at all possible, please fix that.
  • DaveLessnau - Tuesday, November 29, 2011 - link

    Oh, and I know that Word superscripts ordinals, too. But, it doesn't put the baseline of the superscript above the top line of the regular characters.
  • Ryan Smith - Wednesday, November 30, 2011 - link

    You're correct, I am using Word to write the text for these articles. Our CMS converts Word superscript to <sup> tags, which is why you're selling the final result since HTML4 says that superscript "appears half a character above the baseline". I do like having superscript, but you make a good point in that being above the baseline is annoying, so I'll go take a look at it.
  • siberian3 - Tuesday, November 29, 2011 - link

    Who cares for such a product so late in the game when we
    are waiting Radeon HD7xxx and NV GTX6xx cards in a few months?
  • Performance Fanboi - Tuesday, November 29, 2011 - link

    If they were going with something that clumsy they should have just gone with GTX560-ClearingSiliconinAdvanceofKepler-448

    Seriously though, GTO560 for a so-called limited card at the end of the product cycle would have fit better eg: 7900GTO when they were clearing out G70.
  • nevertell - Tuesday, November 29, 2011 - link

    Have you tried unlocking the locked off cores ? This was the only incentive to buy a 465 back in the day. That's what I was hoping for anyway, when I first heard about nvidia releasing another GF100 based product.
  • Leyawiin - Tuesday, November 29, 2011 - link

    Its a very good card for a decent price if you can't wait for the next gen from both companies. Kind of amusing all the withering comments and hair-splitting over review game choices. Its a better card than the HD 6950. Period. Give it the due it deserves.

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