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so in my XFX uh 5850 unboxing what I

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realized is that I didn't really go into enough depth about what are the

3
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differences between these two cards so first let's talk about the physical

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differences okay the most obvious one is the difference in length so we're going

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to measure the 5870 from the very edge of the PCI

6
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bracket here to the end of the cart is 11 oh it's like 11 and 1/8 of an inch

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and then for the 5850 the same measurement is only N9 and a oh just a

8
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hair over a half so it's about 9 and you know 5/8 of an inch okay but something

9
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that you have to factor in is that you're going to need almost another inch

10
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or so maybe 3/4 of an inch for the PCI

11
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Express connector so it actually is more like more like 10 and 1 half so you're

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only looking at about a 1 in difference between these two cards when they're

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installed in your case now they both support direct X11 and they both support

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ifinity with up to three monitors One DisplayPort and two other digital

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displays now in terms of the overall spec I'm going to cheat a little bit

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here and I'm going to look at the chart on Hardware conu because it's very very

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useful so the 5870 is clocked at 850 MHz

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on the GPU core and the 5850 is clocked at 725 the 5870 has faster memory at 4.8

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GHz whereas the 5850 is clocked at 4,000

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so just 4 GHz there are a couple other

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differences for example the Stream processors are down from 1600 stream

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processors to 1440 and then you're also

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a little bit reduced on the rops okay or sorry the texture units the

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RS are the same so what that means is

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that with the 5850 based on all the benchmarks I've seen I haven't had a

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chance to test it yet you're looking at about 10 to 15% slower but at a

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significant cost reduction so thank you for checking out my differences between

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the 5870 and the 5850 video