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Thread: Performance issues on BF3
18-08-2013, 12:04 AM #1
Performance issues on BF3
I have an ongoing issue: I'm not getting adequate performance out of Battlefield 3. Even though I meet recommended requirements, I still need to run at 720x480, minimum settings to get an adequate frame rate.
Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz
6.1 GB RAM
Microsoft Windows 7 Enterprise Edition Service Pack 1 (build 7601), 64-bit
AMD Radeon HD 7470 w/ 1GB RAM
EDIT: Apparently, the power of AMD cards is determined by the last 3 numbers instead of the overall number. Hubwah?
Last edited by Pengwertle; 18-08-2013 at 12:36 AM.
18-08-2013, 01:59 AM #2
Both nVidia and AMD start off their card numbers with the series. So, the 7000 series, 600 series etc. As you say, the last numbers are really the most important. For AMD, you'd want something in the 7800 or 7900 bracket (I'd need to check, but I think the 7750 might be usable as well). For nV, you basically don't want anything lower than X50, where X is the series number.
18-08-2013, 02:44 AM #3
Yeah... 6100 is worse than 5700 by several marks for example. Its a horrible ugly standard, but system builders are mostly used to it. I generally try and get a reputable benchmark site, try Toms Hardware or BitTech.
First number(the thousand) merely denotes the series, while a 6600 is better than a 5600, a 5700 might beat a 6600. Remember that each of these might have variations in ram amounts and some will have X( or XL, LX or GTI or some other crap) appended to the name and make it different than the one without the letters.
Last edited by Heliocentric; 18-08-2013 at 02:46 AM.
18-08-2013, 07:42 AM #4
18-08-2013, 11:41 AM #5
The 7470 is just an old GPU from the 6000 or 5000 series with a new number slapped on so people will keep buying it under the assumption that it's new and therefore good.
It seems to be the same GPU as the 6450, which performance-wise would also place it somewhere between the 5450 and 5550. It has 160 shaders. By comparison, the top GPU of the 5000 series has 1600 shaders. So this is a tenth of a high-end GPU from 2009. No longer such a mystery that performance sucks, right?
18-08-2013, 12:10 PM #6
Along with the GTX 650 it's the cheapest stuff that should be purchased with any sort of "real" gaming in mind (BF3 for example). And if at all possible, you should step up to something like the 7770 instead.
For the record, the 7730 has 384 shaders, the 7750 has 512, and the 7770 has 640. These are higher-performance shaders than the ones in the 7470, so the 7730 is probably significantly more than twice as powerful. And the 7770 about twice as powerful as the 7730; performance differences are substantial from one low-end GPU to the next (which is why the bottom rung ends up sucking so much).
18-08-2013, 12:12 PM #7
18-08-2013, 02:48 PM #8
Alright then, I need some help. What graphics card should I aim for if I'm trying to get the most bang for my buck? Nvidia or AMD? What card in particular? Basically, any card that can run Battlefield 3 at 1680x1050 at 60 FPS.
18-08-2013, 03:37 PM #9
With High settings and no AA, a Radeon HD 7770 should do the trick. If you want to add AA, you'll need a little more oomp - 7850, 7870, GTX 660 or 650 Ti Boost (not the non-Boost version). I wouldn't recommend anything more expensive since your CPU at some point becomes the limiting factor anyway.
Now, these graphics cards all draw more power than the one you have, and all require either one or two 6-pin PCIe power connectors from the power supply. So you need to check your power supply and confirm that it has the capacity and quality to reliably deliver the extra power, and the requisite connectors.
18-08-2013, 04:33 PM #10
Thanks for the reply. I think I'll go for a 7770; I don't know why someone would pay twice as much just to make their perfectly good display look slightly blurry.
18-08-2013, 04:42 PM #11
Enjoy your jagged edges.
19-08-2013, 08:04 AM #12
Just make sure you know what your PSU can do (IE if it has an 6x pin power connector) before you buy that 7770 - if it doesn;t (which is highly unlikely this day and age), get the 7750.
19-08-2013, 10:52 AM #13
21-08-2013, 03:00 PM #14
Also, what site are you people using to benchmark how these different cards will perform?
21-08-2013, 05:00 PM #15
Tom's Hardware, Anandtech, and so on.
22-08-2013, 01:27 PM #16
isnt 7850/7870 still the optimum bang for buck? havent checked in a while