The Radeon HD 5970: Completing AMD's Takeover of the High End GPU Market
by Ryan Smith on November 18, 2009 12:00 AM EST- Posted in
- GPUs
Thanks to AMD’s aggressive power optimizations, the idle power of the 5970 is rated for 42W. In practice this puts it within spitting distance of the 5800 series in Crossfire, and below a number of other cards including the GTX 295, 4870X2, and even the 4870 itself.
Once we start looking at load power, we find our interesting story. Remember that the 5970 is specifically built and binned in order to meet the 300W cap. As a result it offers 5850CF performance, but at 21W lower power usage, and the gap only increases as you move up the chart with more powerful cards in SLI/CF mode. The converse of this is that it flirts with the cap more than our GTX 295, and as a result comes in 69W higher. But since we’re using OCCT, any driver throttling needs to be taken in to consideration.
Looking at the 5970 when it’s overclocked, it becomes readily apparently why a good power supply is necessary. For that 15% increase in core speed and 20% increase in memory speed, we pay a penalty of 113W! This puts it in league with the GTX series in SLI, and the 5870CF, except that it’s drawing all of this power over half as many plugs. We’re only going to say this one more time: if you’re going to overclock the 5970, you must have a very good power supply.
Moving on, the vapor chamber cooler makes itself felt in our temperature testing. The 5970 is the coolest high-end card we’ve tested (yes, you’ve read that right), coming in at 38C, below even the GTS 250. This is in stark opposition to previous dual-GPU cards, which have inhabited the top of the chart. Even the 5850 isn’t quite as cool as a 5970 at idle.
At load, we see a similar but slightly different story. It’s no longer the coolest card, losing out to the likes of the 5850 and GTX 285, but at 85C it hangs with the GTX 275, and below other single and dual-GPU cards such as the 5870 and GTX 295. This is a combination of the vapor cooler, and the fact that AMD slapped an oversized cooler on this card for overclocking purposes. Although Anand’s card failed at OCCT when overclocked, my own card hit 93C here, so assume that this cool advantage erodes under overclocking.
Finally we have our look at noise. Realistically, every card runs up against the noise floor, and the 5970 is no different. At 38C idle, it can keep its fan at very low speeds.
It’s at load that we find another interesting story. At 63.8dB it’s plenty loud, but it’s still quieter than either the GTX 295 or 5870CF, the former of which it is significantly faster than. Given the power numbers we saw earlier, we had been expecting something that registered as louder, so this was a pleasant surprise.
We will add that on a subjective basis, AMD seems to have done something to keep the whine down. The GTX 295 (and 4870X2) aren’t just loud, but they have a slight whine to them – the 5970 does not. This means that it’s not just a bit quieter to sound meters, but it really comes across that way to human ears too. But by the same token, I would consider the 5850CF to quieter still, more so than 2dB would imply.
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kilkennycat - Thursday, November 19, 2009 - link
Er, have you noticed the "Not in Stock" or "Pre-order" when you have gone to order one. You might get a 5850, but try finding a 5870 without having to psy a jacked-up premium over MSRP. Best of luck.mrdaddyman - Wednesday, November 18, 2009 - link
Since the 5870 seems to be in such great supply, I would like for someone to post a link where I can actually buy one of these. I have been trying to buy one for a month and haven't been able to find one.rennya - Thursday, November 19, 2009 - link
Does it has to be online?Here, I have many options for 58xx and 57xx models in retail stores. Which is more applicable for me because Newegg doesn't ship to my place.
Well, if you insist of finding online links, plenty of them at http://flaturl.com/eb0">http://flaturl.com/eb0 or http://flaturl.com/YmU">http://flaturl.com/YmU or http://flaturl.com/pAU">http://flaturl.com/pAU or http://flaturl.com/q15">http://flaturl.com/q15 or http://flaturl.com/5av">http://flaturl.com/5av and many more.
These are just some of the sellers in my place who sells those so-called mythical ATI cards online (doesn't include the gazillions others sold in retail). You may want to argue that they won't ship to you in United States, but then again the likes of NewEgg doesn't ship here too.
If you are desperate enough, I can help you obtain one of those cards. Want to take the offer?
Alexstarfire - Wednesday, November 18, 2009 - link
And this is the 5970 that we are talking about. Not the same thing.MamiyaOtaru - Thursday, November 19, 2009 - link
by saying "another paper launch" you were implying that the previous launches were paper. So you were talking about the 5870. As they are and have been available, they were not paper launches. So even if the 5970 is a paper launch (it isn't) you can't very well call it another onetajmahal - Wednesday, November 18, 2009 - link
No link yet for the 5850 or the 5870? That's a surprise.lloyd dd - Wednesday, November 18, 2009 - link
would using 3 monitors in portrait orientation sort out the aspect ratio in eyefinity?JarredWalton - Wednesday, November 18, 2009 - link
It would be closer. 4800x2560 would end up at a 1.875 AR, compared to 1.78 for 16:9 and 1.6 for 16:10. I think that 16:9 content stretched to fill 4800x2560 should look fine (about the same as 16:10 stretched to fill a 16:9 monitor).Of course, the more difficult question is how to put three 30" LCDs into portrait mode. You would need a different base stand -- none of the 30" LCDs I've seen allow you to rotate the display into portrait mode, probably because the LCDs are two feet wide.
yyrkoon - Wednesday, November 18, 2009 - link
Hey Jarred,Why not be inventive, and make a stand to hold 3 x 30" LCDs ? I do not mean you specifically of course, but whomever would want to have one. It really is not that difficult . . . just a little planning, and the ability to work with steel ( heavy ) or quality aluminum. Now if someone did not have the skills to make brackets etc, they could even draw something up, give it to a local fabricator, and be on their merry way . . .
Personally, I like the first option mainly because I enjoy working with materials as such ( metals, wood, plastics, etc ). Not to mention the fact that it can cost far less doing it yourself.
JarredWalton - Thursday, November 19, 2009 - link
I understand it's entirely possible. My point is merely that it's yet another expense. I don't think 3x30" with EyeFinity is going to be anything but a very, *VERY* niche product. LOL.5970 = $600
3 x 30" = $3000 (minimum)
3 x Stands = $120 to $600
So besides having the money, you need the space (and possibly time). I'd say $4000+ just for the GPU and LCDs is where the costs start, and naturally you would want a killer system (i7-920 with overclocking, or i7-975). But hey, you want the best of the best, there you have it. Until the next big thing comes along.
Speaking of which, what about 30" LCDs with 120Hz and 3D Vision? LOL.... (No, I'm not saying that's out or coming soon, but it could be.)