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Radeon 4890 vs 2X Radeon 4890

Tags:
  • Radeon
  • Crossfire
  • Graphics
Last response: in Graphics & Displays
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December 21, 2009 8:55:33 PM

I have a Sapphire Radeon 4890 1GB 256-bit video card. It has great performance, I just need a little bit more.

I was hoping to find a benchmark of the 4890 in single mode vs 2 4890's in crossfire mode for some of the more popular and graphically demanding games, such as Crysis Warhead and Call of Duty Modern Warfare 2. I need this information to see if it would be logical for me to purchase another card for Crossfire.

I have a Biostar T-Series AMD motherboard with 2 PCI-Express 2.0 16x slots. My board in dual PCI-E mode for crossfire is 8x instead of 16x. I hope that wouldn't be a problem performance wise.

Can anyone clear some of this up for me? and hopefully find a benchmark comparison for single mode vs crossfire mode..

Thanks!

More about : radeon 4890 radeon 4890

December 21, 2009 9:46:32 PM

If you can refund the 4890 you could get a 5870 for more performance.
2 4890's best a 5870, but it's very powerhungery.
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December 21, 2009 10:04:08 PM

yeah a 5870 will be better, a single chip gpu should have better min fps.

PCI-E 2.0 @ 8X should be the same as PCI-E 1.0 @ 16X.

And if you need only a little more than a 4890 then a 5870 should do the trick and you'll get DX11 as well, less heat and less power usage.

If you can't get a refund for your 4890 you could always sale it on ebay for example and then get a 5870.

If you decide to crossfire your 4890 you'll need to see if your PSU can power 2*4890.
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December 21, 2009 10:07:44 PM

My PSU is crossfire certified, so yes.

I didn't get a Radeon HD 5 series because I'm running Win 7 64-Bit and the driver support is HORRIBLE.

So can you find me a 2x benchmark for the Radeon 4890?

Thanks.
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December 21, 2009 10:21:04 PM

jared_l said:
My PSU is crossfire certified, so yes.

I didn't get a Radeon HD 5 series because I'm running Win 7 64-Bit and the driver support is HORRIBLE.

So can you find me a 2x benchmark for the Radeon 4890?

Thanks.


The Win 7 64-Bit drivers work great for me, once I learned one major issue that has an easy work around.

You simply have to use ATI Overdrive, set the timings slightly different than stock, which can let you OC the card if you like, and the issues are non existant.

There is another work around if you use two monitors, unless you do, there is no need to look further.
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December 21, 2009 11:40:27 PM

Well.. I already bought the card..so I'm sticking with it for now. I just need to see a visible difference from 1 card to 2 cards.
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December 22, 2009 12:46:45 AM

Base on todays games & apps...2x4890 is better than OC 5870. If you want to look at the other aspect and its merits to consider refer to the benchmark on the path below.

http://www.tomshardware.com/reviews/powercolor-5870-lcs...

You can make the decision base on what is important to you. The benchmark numbers are clear.
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