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4870 1GB CF Vs. 5850

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Last response: in Graphics Cards
February 14, 2010 9:59:26 PM

Sum of FPS Benchmarks 1920x1200 with anti aliasing, 8AA (High Quality)
• ATI Radeon HD 4870 (1024 MB) - 162.60
• ATI Radeon HD 5850 (1024 MB) - 224
ATI Radeon HD 4870 CF (2x512 MB) - 252.70
• ATI Radeon HD 5870 (1024 MB) - 259.50

Okay, so all over the forums I keep reading people recommending a 5850 over adding a second 4870 in CF. I'm really here to figure out WHY this is the case?

The way I see it, assuming I'm starting off with a 4870 1GB in the system already, all things being average:

(My results will probably be a bit higher as my cards are 1GB cards)

$149.99 = 56% Increase (+1 4870 1GB)
$299.99 = 38% Increase (5850 1GB)
$409.99 = 59% Increase (5870 1GB)

With these numbers, I can't see why people are touting DX11, low power usage and Eyefinity support for what on average will be double the cost for nearly half the performance boost in most of today's games.

Am I really missing the mark on this or am I being logical?

My monitor is 2048x1152 and I usually run games at native res when possible.

System Specs
Intel E8500 @ 3.6Ghz
3GB DDR3
750w PS

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"I'd rather be saving the princess..."

More about : 4870 1gb 5850

a b U Graphics card
February 14, 2010 10:17:17 PM

Those are the things that you have to take into account. Yes, adding another 4870 will increase your performance more than getting a 5850 for less but not everyone has corssfire capabilities. And things like DX11, eyefinity, low power use all add up and it is ultimately up to the buyer what is the best.
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February 14, 2010 10:20:44 PM

Sum of FPS Benchmarks 1920x1200 with anti aliasing, 8AA (High Quality)
• ATI Radeon HD 4870 (1024 MB) - 162.60
• ATI Radeon HD 5850 (1024 MB) - 224
• ATI Radeon HD 4870 CF (2x512 MB) - 252.70
• ATI Radeon HD 5870 (1024 MB) - 259.50

Okay, so all over the forums I keep reading people recommending a 5850 over adding a second 4870 in CF. I'm really here to figure out WHY this is the case?

The way I see it, assuming I'm starting off with a 4870 1GB in the system already, all things being average:

(My results will probably be a bit higher as my cards are 1GB cards)

$149.99 = 56% Increase (+1 4870 1GB)
$299.99 = 38% Increase (5850 1GB)
$409.99 = 59% Increase (5870 1GB)

With these numbers, I can't see why people are touting DX11, low power usage and Eyefinity support for what on average will be double the cost for nearly half the performance boost in most of today's games.

Am I really missing the mark on this or am I being logical?

My monitor is 2048x1152 and I usually run games at native res when possible.

System Specs
Intel E8500 @ 3.6Ghz
3GB DDR3
750w PS

---
"I'd rather be saving the princess..."
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Related resources
a b U Graphics card
February 14, 2010 10:25:10 PM

well i think why so many people reccommend it is because. I think 1 they think that you'd sell your 4870 which you might not, so then it would be just straight 299 for the 5850. But i think what they're really going after is that, for most games a high end card is going to bring game fps above your monitors's 60 hertz refresh unless of course you have a 120 or 240, then it might make a small difference.

So besides a select few games that are so straining on the gpu that it brings it below 60 fps, i mean heck the only game that brings my 275gtx below 60fps that i own is crysis, which is to be expected. So besides that one game which shouldn't be the basis of a purchase, the 5850 is going to get you that 60 fps with the added benifit of dx11, and sure low power usage is nice, but for most people not really a big deal,
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a b U Graphics card
February 14, 2010 10:25:57 PM

Do try to remember, that you are going based on the HIGHER entry series in the 5xxx line, the 5770 is on par with the 4870. So you could theoretically spend $300 and get the performance of a 5870 with the 59% increase. However what you are running now is still rather high end, I couldn't currently see a reason to upgrade any 48XX crossfire setup especially at that resolution. Just save your cash till the 6xxx or if Fermi offers better performance.
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a c 376 U Graphics card
February 14, 2010 10:26:35 PM

Yeah, if you already have an HD4870 might as well just get another. The HD5850 does have a number of advantages but you seem aware of them although you left out crossfire scaling/compatibility issues. I would probably ebay the HD4870 myself and grab an HD5850 but if your case has good airflow crossfiring the HD4870 is a bit more cost effective.
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a b U Graphics card
February 14, 2010 10:27:29 PM

Also you were currently asking about single card performance. If someone said to upgrade based on single card performance a 38% increase isn't bad. But for your situation it would be a more productive upgrade since you can, to Xfire the 48xx series.
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a c 376 U Graphics card
February 14, 2010 10:29:47 PM

ryanegeiger said:
With these numbers, I can't see why people are touting DX11, low power usage and Eyefinity support for what on average will be double the cost for nearly half the performance boost in most of today's games.

Am I really missing the mark on this or am I being logical?

What you are missing slightly it seems is that the HD5850 OCs like a mofo, over 1ghz if you are willing to up the voltage which will put it's performance higher than the HD5870.
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a b U Graphics card
February 14, 2010 10:40:46 PM

Are you not defeating your argument here with your post looking for a cooling solution. If your having temp problems your going to have to figure the cost of the cooling solution in to your performance/cost formula.
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February 15, 2010 2:01:05 PM

notty22 said:
Are you not defeating your argument here with your post looking for a cooling solution. If your having temp problems your going to have to figure the cost of the cooling solution in to your performance/cost formula.


Not actually having temp "problems" but more just an enthusiast trying to get the most cooling possible without going to water... plus either way, I'd go with an aftermarket cooling solution across the board, so the cost increase would be redundant overall.

I've just been looking at this issue for a while and with the 4870 only going for cheap on eBay, and about zero games using DX11 at this point (or even DX10 effectively for that matter) and me NOT having a plethora of monitors at my disposal, I'm trying to see the real cost-benefit to selling/upgrading to a 58XX at this point. I feel like I'm missing something. There has been such an across-the-board recommendation of spending the extra money to move to a single-card 58XX solution that I just feel like there's something I'm not aware of.
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a c 376 U Graphics card
February 15, 2010 3:05:29 PM

There are 3 games that use DX11 already actually(Dirt 2, the new Stalker and Battleforge) and a gaggle of them slated for the nearish future(Aliens vs Predator and BF:BC2 are two big ones that should be out shortly.)
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a b U Graphics card
February 15, 2010 4:05:10 PM

I think the only worthy DX11 games out now or in a month is AvP, BF:BC2, and STALKER: Call of Pripyat.
However, it goes to show you good DX11 games are already coming out, sure it may not be the level of optimization & implementation that DX9 enjoys but the speed of Windows 7 adoption + the installed Vista SP2 base means devs are going crazy for DX11.
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February 15, 2010 4:16:30 PM

sabot00 said:
I think the only worthy DX11 games out now or in a month is AvP, BF:BC2, and STALKER: Call of Pripyat.
However, it goes to show you good DX11 games are already coming out, sure it may not be the level of optimization & implementation that DX9 enjoys but the speed of Windows 7 adoption + the installed Vista SP2 base means devs are going crazy for DX11.


With a HUGE userbase of gamers STILL running Windows XP, do you really think in this current generation that DX11 is really worth spending so much money to upgrade to without a signifcant FPS/Performance increase?
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a b U Graphics card
February 15, 2010 4:20:34 PM

Crytek didn't make Crysis by thinking about the HUGE base of XP.
A new DX isn't about performance (though DX10.1 & DX9.0c did) it's about visuals.

You are an idiot, even a 5450 supports DX11 so it doesn't take too much money to have it, a 5850 is like the 8800GTX when DX10 came out.
You can get a 5850 for $289 with DX11 or a GTX 285 for $389 with DX10, less performance, & more power-consumption.

I am saying, if you already have a good DX10 system it's not worth it to upgrade, but if you building a new system it's not SO MUCH MONEY over a competing DX10 system.
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a c 376 U Graphics card
February 15, 2010 4:21:04 PM

Well it will certainly be adopted faster and wider than DX10 which was locked into just one rather unpopular OS. Plus it includes the advancements of DX10.1 which never took off at all as Nvidia ignored it but they should be onboard with DX11 shortly.
As for a performance increase that usually isn't the point of a new directx but that said both Stalker and Battleforge do actually see a decent increase in performance from DX11 compared to DX10.
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a c 376 U Graphics card
February 15, 2010 4:23:17 PM

sabot00 said:
if you building a new system it's not SO MUCH MONEY over a competing DX10 system.

For $150 and above the DX11 cards are actually the best performance for the money even ignoring the other advantages.
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February 15, 2010 4:28:07 PM

sabot00 said:

You are an idiot, even a 5450 supports DX11 so it doesn't take too much money to have it, a 5850 is like the 8800GTX when DX10 came out.


Wow, sorry if I offended you...

So I did a little research and found this:

http://en.wikipedia.org/wiki/List_of_games_with_DirectX...

And from what I can see, so far it's not that widespread as of yet. Plus, with most PC games now being ported from consoles (Read: MW2, AC2, etc.), do you really think developers across the board are going to pour more money into DX11 support until the next generation of consoles come out?

In case you misunderstood me, I didn't say it was expensive to get into a DX11 solution, but expensive to get into a DX11 solution of equal processing power of 2 4870's in CF. So... again, sorry if I offended you.
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a b U Graphics card
February 15, 2010 4:32:23 PM

Sorry if I overreacted but check when DX9/DX10 came out (5 months after they were released), check out their list.
DX11 is getting adopted faster than any other in recent history.
DX11 cards over $150 are actually the better deal right now in terms of performance.
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a c 376 U Graphics card
February 15, 2010 4:34:39 PM

It's expensive if you already have an HD4870. If not an OCed HD5850 will do the trick and is cheaper.
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