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5870 or 5850

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June 14, 2010 9:54:37 PM

Do you know how to overclock?

More about : 5870 5850

June 14, 2010 9:57:05 PM

Well, to start this, I'm confused to buying either ATI 5850 or 5870. I am buying a completely new build. An AMD Phenom II x4 965 processor and probably an Asus M4A89GTD Pro/USB3 Mobo, 800 Watt PSU. Im on a budget but willing to spend $100 more for a 5870. So which should I buy?
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a b K Overclocking
June 14, 2010 10:00:19 PM

If you are inclined to overclock I would suggest a 5850 and later down the road a second one if needed. If you are going to leave the clocks at stock the a 5870 will do just fine.
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June 14, 2010 10:00:42 PM

well, i might plan to overclock if i want more fps for my FPS games, but other than that im looking for a video card thats balanced with my Mobo and CPU.
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June 14, 2010 10:08:08 PM

Either card will work just fine.

Get an HD5850, save $200 over the next few months, and crossfire it. If you don't plan on crossfiring at all, an HD5870 will do just fine.
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a c 100 K Overclocking
June 14, 2010 10:25:10 PM

What they said ^^

5850 = good. 5870=really good. 2x5850=phenomenal.
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June 15, 2010 12:23:56 AM

Yes. It just costs $200 more.
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June 15, 2010 12:25:31 AM

is it possible to crossfire 5870?
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a b K Overclocking
June 15, 2010 8:09:59 AM

What resolution do you play? Either card are good for a high resolution, if you can afford then get that HD5870, surely it will last longer until your next gpu upgrade...
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June 15, 2010 8:54:11 AM

If you want to crossfire I'd stick with 5850s. 5870 crossfire may be pushing the limits for a Phenom II 955, and you may not see much of an increase compared to 2 5850s.
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a b K Overclocking
June 15, 2010 3:26:02 PM

If you have the money now get the 5870. A single card solution is always better than 2 cards(less heat, power). In the long run 5870 is better. Plus in the future if you plan to crossfire another 5870 will be even better.

Yes you can CF 2 5870.

Its your decision.
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June 15, 2010 3:26:05 PM

are HD5850 CF are better then HD5870..? If not why they suggest HD5850 CF why not suggest HD5870 CF...? :-O
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a c 100 K Overclocking
June 15, 2010 3:35:28 PM

dinkle85 said:
are HD5850 CF are better then HD5870..? If not why they suggest HD5850 CF why not suggest HD5870 CF...? :-O


CF 5870s are better, but it's also at least $200 to $300 more. I'm running CF 5850s and seriously, it's all anyone needs right now. The only game to not let me run absolute maximum settings is Metro 2033, the choice is either AAA+DOF (DX11) or 4xMSAA+No DOF. DOF is basically the feature that brings things into focus and blurs the rest, but it does it anyway with DOF off just maybe a little less... sophisticated? I don't know, but with Very High 4xMSAA, DX11, Tesslation on, Depth of Field off, 16x AF the game runs smooth over 50fps except for very few places it drops down but 80% of the game it's over 50fps most tunnels are 60fps. And just fyi AAA vs 4xMSAA the difference is that AAA doesn't do vertical and horizontal lines well, but it's good with curved or diagonals (I don't know why) so some objects you can tell where the AAA isn't working very well. 4xMSAA everything looks smooth and awesome.

Anyway, it all comes down to budget. If you can afford CF 5870s then do it. If you want still amazing performance and save a few hundred bucks go with CF 5850s. If you don't want to crossfire right now but maybe down the road, the 5870 will be a better card and maybe you can CF it later... it's all up to the OP.
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June 15, 2010 4:48:57 PM

I agree with wolfram23, I'm also running cf 5850's on a crosshair 3 mobo with 955 be cpu, my gpu's are at stock speeds and still I get great gaming results, I'd go with the 5850's unless you have no budget concerns, most benchmarks will show you only a marginal difference in cf 5850's and cf 5870's
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a b K Overclocking
June 15, 2010 7:08:35 PM

I have a single 5850 normally OC'ed to about 1000/1275 1.24v & x4 B50 @ 3.8Ghz mainly to play BC2 and Warhead and I am getting ridiculous frames @ 1680x 1050. Of course all settings maxxed out w/o any AA or AF (Warhead), I could only imagine what dual 5850's would offer, I would have to upgrade my screen/res before I do that.

Would be nice to know the res and what games the OP plays...
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June 15, 2010 7:48:19 PM

wolfram23 said:
CF 5870s are better, but it's also at least $200 to $300 more. I'm running CF 5850s and seriously, it's all anyone needs right now. The only game to not let me run absolute maximum settings is Metro 2033, the choice is either AAA+DOF (DX11) or 4xMSAA+No DOF. DOF is basically the feature that brings things into focus and blurs the rest, but it does it anyway with DOF off just maybe a little less... sophisticated? I don't know, but with Very High 4xMSAA, DX11, Tesslation on, Depth of Field off, 16x AF the game runs smooth over 50fps except for very few places it drops down but 80% of the game it's over 50fps most tunnels are 60fps. And just fyi AAA vs 4xMSAA the difference is that AAA doesn't do vertical and horizontal lines well, but it's good with curved or diagonals (I don't know why) so some objects you can tell where the AAA isn't working very well. 4xMSAA everything looks smooth and awesome.

Anyway, it all comes down to budget. If you can afford CF 5870s then do it. If you want still amazing performance and save a few hundred bucks go with CF 5850s. If you don't want to crossfire right now but maybe down the road, the 5870 will be a better card and maybe you can CF it later... it's all up to the OP.

I noticed in your system specs it says gt240 physx ppu, what is this for?
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a c 100 K Overclocking
June 15, 2010 7:55:23 PM

jijoslin said:
I noticed in your system specs it says gt240 physx ppu, what is this for?


There's about 11 games out right now that allow GPU accelerated PhysX for some extra bells and whistles. The GT240 was on sale for $65 so I figured I'd give it a try. It definitly adds cool effects, you can easily YouTube some comparison videos for Batman: AA, Mirror's Edge, Metro 2033, Dark Void, and Cryostasis. I wouldn't really recommend anyone doing this for just the few games that really use it right now, but it looks like the Bullet physics engine is also finally going to allow GPU acceleration so maybe in the next year or two we'll see a lot more support for it.

(btw PPU = physics processing unit)
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a b K Overclocking
June 15, 2010 7:55:59 PM

physx ^^
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June 15, 2010 11:11:44 PM

do you need a third pci-e slot if your already using a crossfire setup for this,and does ati and nvidia support this?
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a c 100 K Overclocking
June 15, 2010 11:23:58 PM

jijoslin said:
do you need a third pci-e slot if your already using a crossfire setup for this,and does ati and nvidia support this?


Yes, an extra PCIe slot is required. Mine is only running at 4x lanes and it's sufficient. From what I can tell using FluidMark stress test the PPU can't go over 83% usage (I think due to being on 4x PCIe lanes) but the highest stress it's ever had was in Batman AA at 50%. Every other PhysX game has been no more than about 15%.

PhysX is a propietary thing for Nvidia. And they do not support hybrid set ups (ATI+Nvidia). In fact they have it written in their drivers to disable their GPUs if it's in a system that also has an ATI card. There's an easy patch to get around it called the GenL PhysX Mod (V1.03 is the newest). PhysX can not and will not run on an ATI card due to hardware differences. You can still run it off the CPU sometimes but it's nowhere near as fast as off a GPU (due to the significant amount of stream processors vs a few cores)
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June 16, 2010 1:05:05 AM

Okay so if I'm understanding you correctly, when your running a physx game your only using the gt240? or all three of your cards, thanks for the info and kudos to your configuration!
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a c 100 K Overclocking
June 16, 2010 1:34:15 AM

jijoslin said:
Okay so if I'm understanding you correctly, when your running a physx game your only using the gt240? or all three of your cards, thanks for the info and kudos to your configuration!


All of them, the 5850s are doing all the rendering and the PhysX card is only doing the special effects. With Nvidia cards, on the midrange ones, if you run PhysX it can horribly reduce your FPS so it can be worthwhile to run a dedicated PhysX card. Since I have ATI cards, I wouldn't even have access to PhysX at all but now I get all the little eye candy additions lol. If you youtube some videos for Batman AA, Cryostasis, Mirror's Edge, Dark Void and a few others you can find comparisons of PhysX on and off to see what sort of effects it adds. Mostly it's things like realistic smoke that doesn't just sit there looking pretty as in most games, but that you can actually move and it swirls around as you move through it. Also adds very good cloth movement and tearing effects and other particle effects.
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June 16, 2010 2:21:57 AM

sounds cool, too bad my mobo don't have another slot, so how do you enable physx in ccc?
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June 16, 2010 3:43:04 AM

Thanks for the info thats a good link, will just any card work for physx? could you recommend one?
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a c 100 K Overclocking
June 16, 2010 4:12:13 AM

Well imo a gt240 or equivalent is about perfect so maybe a 9600gt. Anything better is great but like I said the gt240 doesn't get over 50% stressed... No sense spending a lot for wasted power. Plus the 240 runs off mobo power and only uses like 60w max.
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June 16, 2010 4:22:18 AM

I think the gt240 is a good bet, since it runs off board power, what do you think of this mobo?MSI 890FXA-GD70 AM3 AMD 890FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard?
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a c 100 K Overclocking
June 16, 2010 4:38:49 AM

Looks like a pretty sick mobo. I went with intel so I only know about p55 chipsets but that one has some great features it looks like. And lots of pcie slots.
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June 16, 2010 5:07:06 AM

I bought my system off a guy for like $600.00 it had a bad crosshair 3 mobo, I replaced it, re-configured everthing and now everything works fine, so I wound up having a cf hd5850 set-up for like $800.00, otherwise I may have went with intel, Thanks for all the info!!
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June 16, 2010 5:12:41 AM

Have you ran 3dmark vantage/ what was your score? you have a stronger cpu, and your gpu's should yield better results due to overclocking, I'm just trying to get a reference for what to strive for when I get my cards clocked at similiar speeds my overall score was P17771, and gpu 20652
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June 16, 2010 5:49:24 AM

The test are very informative, thanks for the info!!
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August 6, 2010 10:53:44 PM

wolfram23 said:
What they said ^^

5850 = good. 5870=really good. 2x5850=phenomenal.

I just got a gt240 for physx and I already have crossfired hd5850's is the 512mb sufficient? and how do I set it up?
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