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7850 vs 6850

Last response: in Graphics & Displays
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May 31, 2012 10:55:26 AM

Some reviews between these two cards show benchmarks that are so close the newer 7850 only just beats its older 6xx counterpart in most performance tests. These same reviews also said the 7850 flat out wins for power consumption.

But for fullscreen games at 1920x1080 would it be able to outperform the 6850 in titles such as Star Trek Online with max settings and AA at 4x (and AF at max)? What about the new Battlefield 3? Or would the performance margin be too small to justify upgrading?

I don't plan to do Crossfire/CrossfireX but I'm leaving my options open. I'm usually a single-card gamer.

My current OS is Windows 7 Pro (32-bit) and recently I've been considering the upgrade because sometimes my games CTD with an unsual "pinkified"/ugly Desktop. It also forces me to reboot to "fix" this situation, hinting my card or MB was failing. And if they are, I'll have to either get a new 6850 or upgrade. My MB already failed in a power surge this past March. If I'm replacing one part I may as well ask if I should change graphics cards as well or stay with the same model (just replaced with a new one).

More about : 7850 6850

May 31, 2012 11:08:46 AM

It's quite a bit more powerful. Around 20%.



However, if you own an HD 6850 already, I would not bother upgrading. You will not notice a huge improvement.
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May 31, 2012 11:43:18 AM

So its 20% better than the 1GB GDDR5 HD 6850?

I noticed that in fullscreen with the previously mentioned settings my FPS drops form 48 to about 23. I would have to switch to windowed mode at approximately 1680x1050 to get it back up to 48 FPS. I believe it is a frame buffer bottleneck issue (the CPU is a quad core Phenom II, so it would have to be a frame buffer bottleneck). Would that problem still exist with a 7850?
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May 31, 2012 12:23:23 PM

Which game are you talking about that fps drops from 48 to 23? How does this drop occur? Like 10 minutes after gameplay start?
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May 31, 2012 12:46:39 PM

MarkusFox said:
So its 20% better than the 1GB GDDR5 HD 6850?


No. It is ~30% faster and is using a bit less energy.
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May 31, 2012 1:00:09 PM

Hd 7850 is definitely faster and by a big margin
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May 31, 2012 1:03:50 PM

rmpumper said:
No. It is ~30% faster and is using a bit less energy.


Benchmarks say it's ~20% :) 
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May 31, 2012 1:07:53 PM

rmpumper said:
No. It is ~30% faster and is using a bit less energy.


Well the reviews did say it would do that yes. But in performance does it make the 7850 worth it over the 6850? So far the answer seems to be no.

Sunius said:
Which game are you talking about that fps drops from 48 to 23? How does this drop occur? Like 10 minutes after gameplay start?


Star Trek Online. High Quality (customized) graphics settings with AA off, maxed AF, bloom on low, reflections on high, most detail settings maxed out. And in fullscreen at 1920x1080. The effect is immediate. See, it ran fine at 1680x1050 on an older monitor in fullscreen with an FPS of about 48~56. But that monitor died so I ended up with this high-res one. Soon as I readjusted the game's internal Fullscreen Resolution setting and Aspect Ratio to fit my monitor, the FPS dropped to 23~28 (even if I play it right off a fresh system reboot). But when I run it in windowed mode close to 1680x1050, the FPS goes back up (making me think the framebuffer of my Radeon HD 6850 just couldn't handle it in true fullscreen. Smaller seems to equal better for this card, but then it gets easier to accidentally drag the mouse outside the game window).
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May 31, 2012 1:29:12 PM

How big is your new monitor (resolution wise)? If you're getting 25 fps now, with HD 7850 you'd get around 30-32.
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May 31, 2012 1:39:15 PM

Sunius said:
How big is your new monitor (resolution wise)? If you're getting 25 fps now, with HD 7850 you'd get around 30-32.


Old monitor: 1680x1050
New (current) monitor: 1920x1080
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May 31, 2012 1:42:36 PM

Hmm that fps drop is really strange and I doubt it's due to monitor size increase. I suspect a driver problem, would you mind reinstalling them? Because if it was a monitor problem, the fps would drop around 16.6% (due to 20% increased resolution). Seems like you experienced a 50% drop.
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May 31, 2012 2:06:01 PM

Sunius said:
Hmm that fps drop is really strange and I doubt it's due to monitor size increase. I suspect a driver problem, would you mind reinstalling them? Because if it was a monitor problem, the fps would drop around 16.6% (due to 20% increased resolution). Seems like you experienced a 50% drop.


In my OP I mentioned I was considering an upgrade since I have to replace my motherboard before I can do anything with the computer. A storm in march caused a brownout which in turn made some popping noises in the case which in turn (again) made me check the innards which led to "trace damage" that the mobo manufacturer refuses to help with.

I'm replacing the affected parts one at a time as my very tight budget allows. First the motherboard, then I can test the driver thing. But on the thread topic would you still say to stick with my 6850?
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May 31, 2012 2:17:08 PM

I would stick with it. As I said, upgrade to HD 7850 would barely be noticed. Also, the fact that you're replacing your motherboard doesn't mean you should also change your graphics card. Instead, you should save the money and invest it in the future, when an upgrade will really be noticeable and beneficious (like you cannot play a a new game you would like to).
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May 31, 2012 4:33:46 PM

Sunius said:
I would stick with it. As I said, upgrade to HD 7850 would barely be noticed. Also, the fact that you're replacing your motherboard doesn't mean you should also change your graphics card. Instead, you should save the money and invest it in the future, when an upgrade will really be noticeable and beneficious (like you cannot play a a new game you would like to).


Alrighty then. Stay with my 1GB 6850. I'll talk to XFX (the people I bought it from) after I get a new Mobo if the FPS issues (and the wonky pink glitched desktops after a CTD) persist after a full driver wipe/reinstall.
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May 31, 2012 4:46:11 PM

Okay. Make sure to tell us how it goes!
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June 3, 2012 8:45:15 PM

Sunius said:
Okay. Make sure to tell us how it goes!


The new mobo came in so I hooked it up. After some jiggering to get the PSU to stay stable (the 110/220 voltage switch in the back wasn't locking in place like it should) I got into my stuff and started some maintenance.

Updated the video drivers (since the mobo issues started in March, I haven't been able to update them obviously) to the current Catalyst drivers from XFX. Fullscreen FPS is approximately 45-47. In windowed mode the approx FPS goes up to 54-58. This represents some improvement. Still prefer it in windowed mode since its "faster" that way.
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June 4, 2012 5:08:02 PM

Best answer selected by MarkusFox.
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June 14, 2012 9:49:32 AM

7850 one of the best bangs for the buck out there for a decent video card. I just upgraded from a 5850.
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June 14, 2012 1:02:33 PM

7850 is noticeably better
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October 12, 2012 10:19:34 PM

These people don't know what they are talking about. I have a 6850 and my friend has a 7850. He can get 60fps co-op on bf3 and I get 30 on ultra 1080p. I would guess it has something do do with the extra vram. Now I don't know if I should get another 6850 or not because of vram.
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October 12, 2012 10:21:08 PM

Although that could be because I have FX 8120 and he has one of the worst non overclockable i7s I think 2nd gen sandy.
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February 11, 2013 11:24:48 AM

-.- i know that i am pretty much necroing this, but i just had to correct the math.

If the 7850 is at 85% and the 6850 is at 59%, the 7850 is 44% faster than the 6850.

85/59 = 1.4407, in other words, you have to multiply the 6850 by 1.44 to achieve the result of the 7850.

That is VERY significant
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