Sapphire 5870 2gb Toxic PSU

The new Sapphire 5870 2gb Toxic card that I'm going to get says it requires 600W for single and 900W for crossfire.

I wasn't expecting the power to be so much, so I was going to order an 850W Corsair HX for a single and then crossfire for the future. Should I rethink that now and either, stick with one card and grab a 750W unit? Or grab a 1000W PSU? Or will I be good enough with 850?
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  1. 850W will be fine. 750 would probably be fine, as I'm aware of a few Crossfire HD4890 owners who have 700W PSU's, and stock 4890's suck down almost just as much power as stock 5870. Guidelines like those are safety nets, and are often exaggerated due to the lack of power distribution standards in PSU manufacturing and their various levels of actual build quality.

    The main thing to watch out for is how much overclocking you intend to do. If you intend to OC both your CPU and GPU heavily, then getting a more powerful PSU would be a wise decision.

    Here's a link to a great PSU calculator that allows you to adjust for such things as overclocking, extra fans, different HDDs, and many other factors that can affect your selection.

    Also, here's another helpful link to charts that map power reqs for video cards.

    Using the two should help you figure out exactly how to plan your build.
  2. Agreed with Razbery, a 750W would be just fine (especially if Corsair), but an 850W would allow for much more OC'ing headroom between the GPUs and CPU.
  3. Thanks for the replies, looks like I'll be going with the 850HX from Corsair for the efficiency and headroom.

    Didn't see the need to make another thread, but I've been pondering over getting that Sapphire Toxic 5870, Asus 5870 Matrix, or possibly a GTX 470. Would it be worth it to save about 100 dollars and have a single GTX 470 for now with quite possibly an SLI set up in the nearer future due to price differences? Would the driver maturity over time increase the GTX 470's individual and SLI performance over the stock or those two named 5870's?
  4. Well, since you're considering both ATI and nVidia camp cards, is it safe to assume you also intend to build an i7-9XX system on an X58 motherboard?

    nVidia prices are thru the roof, currently. The price premium is driving their price/performance ratio so far beneath that of it's ATI rivals, it's almost nuts to even consider them. Plus, the 470 doesn't match the performance of the 5870. It's more akin to the 5850, but bounces between the two depending upon the game in question.

    Out of the cards you've mentioned, I'd go with the ASUS Matrix. You get a knock-out of a stock card with lots of overclocking headroom, as well as factory support for over-volting, which in turn leads to even more overclocking potential. And don't forget, you could always CrossFire a pair of 5870's, or 5850's for that matter.

    One thing to keep in mind with the 2GB versions of the 5870 is that all 6 of their display output ports are DisplayPort. No DVI, no HDMI, and certainly no VGA. So, if you don't have a DisplayPort monitor, you're going to need to spend a little extra cash on a DisplayPort adapter. And unfortunately, you'll need one for each non-DisplayPort monitor you intend to use.
  5. Look at that link again, it has standard ports. It's just a 5870 with 2GB RAM and 925 clock speed. The one from Sapphire. Also, I don't really plan on over-volting for overclocking. Perhaps just raising the clocks a little is all I'd plan on doing. And yes, I'm getting an i7-930 with the ASUS P6X58D-E mobo. Also, I'm planning on buying another video card in the fall. So, I do plan on CF/SLI in the nearer future rather than later. So, you're saying driver maturity probably won't up the perfomance of the 470 enough for consideration?
  6. If you get an HD5870, then an HD5970 later, you'd have a killer TriFire setup that would outperform any nVidia SLI for some more dough. The 5870 beats the 470, but loses a bit to the 470SLI because of scaling. But it seems that an HD5970 + 5870 in TriFire would beat 3x GTX470.
  7. Alright, do you guys think it's worth the extra cash to buy the 490+ special overclocked/cooled/2gb versions of the 5870? Not the Eyefinity 6, but the Vapor-X/Toxic/Matrix verisons? Or should I just stick with the $400 stock ones?
  8. Anybody know what the performance boost is compared to the normal 5870 1gb?

    I havnt seen any benchmarks for it yet.
  9. It's about a 5% increase in performance, not much tbh. Saw it on Tweaktown, but they didn't have many games up for challenge.
  10. So do you think a 50-80 dollar increase is worth the extra 5%? And unless I'm just plain wrong, if these Toxic/Matrix versions are limited time, would I be able to grab a stock 5870 and crossfire it with those versions in the future?
  11. You could, but the VRAM wouldn't add up. If you're not planning on going multi-monitor, then don't bother with the 2GB.
  12. I see, thanks a bunch, so which sounds better? Sapphire HD 5870 for 400, Sapphire HD 5870 Vapor-X for 440, or the Asus 5870 v2 for 430? I know I've been asking a bunch of questions, but this will probably be my last for this thread.
  13. If you're not into OC'ing, grab this card. It's a VERY nice factory overclock.

    This one comes with great cooling for the standard $400 pricepoint.

    For that $440, the Vapor-X version is nice. Though it only has 1 fan, which is confuzzling. MSI Lightning edition is known to be nice as well.
  14. Thing is, if I wanted to pay 500, I'd just get the Matrix/Toxic. Asus/Sapphire have much better quality builds than Gigabyte in my opinion. I dislike Gigabyte. So the question still stands..
  15. Gigabyte is a great brand.

    There are few good non-reference cooler-makers aside from asus/sapphire/msi. Powercolor makes a PCS+ version that's water-cooled.

    If you want the sapphire, get it. The 2GB won't help unless you're running resolutions over 2000.
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