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i5 3570k and crossfire 7870 bottleneck?

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January 12, 2014 5:42:26 PM

Hello, I just recently purchased a second 7870 and this one is a sapphire ghz and my first one was a gigabyte 7870ghz. I've been playing a lot of games with it maxed out and seems to get a constant 60fps. The cpu is running at stock 3.4ghz but I've noticed that crossfire doesn't get any good fps on Battlefield 4. So is my i5 bottlenecking these two cards? Also the graphics cards are running at matching speeds

More about : 3570k crossfire 7870 bottleneck

a b à CPUs
January 12, 2014 5:47:32 PM

Sounds like you have vsync turned on.
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January 12, 2014 5:54:10 PM

Yes I do and the fps goes all over the place in battlefield 4 from 100 to 30 or 40 and even if I'm not looking at explosions or anything.
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a b à CPUs
January 12, 2014 5:56:16 PM

Try turning off Vsync, or not using battlefield 4 as a benchmark as it is still full of bugs. Have you tried using valley or heaven at all?
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Anonymous
January 12, 2014 5:56:27 PM

your cpu is fine for 2x7870's prob fine for 2x780ti so I wouldn't worry about cpu being a bottleneck
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a b à CPUs
January 12, 2014 5:58:07 PM

no the 3570k isn't a bottleneck at all
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Anonymous
January 12, 2014 5:59:14 PM

and frame rates will be skittish in all games just that bf4 is buggy so probs a little worse
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January 12, 2014 5:59:46 PM

Devballs said:
Try turning off Vsync, or not using battlefield 4 as a benchmark as it is still full of bugs. Have you tried using valley or heaven at all?


No I have not but I'm downloading valley right now.
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Anonymous
January 12, 2014 6:01:10 PM

large spikes tend to point to what they call micro stutter have you tried running game with crossfire disabled see if its smoother

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Anonymous
January 12, 2014 6:05:07 PM

when I used crossfire with some games I had to disable crossfire or it played game worse..
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a b à CPUs
January 12, 2014 6:05:35 PM

yes bf4 is a buggy mess, don't remind me that I wasted my money on it at launch as well as premium for it :( 

turn vsync off, and you have the newest beta drivers for the cards? A few updates ago they fixed crossfire stuttering supposedly
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January 12, 2014 6:09:15 PM

WhiteSnake91 said:
yes bf4 is a buggy mess, don't remind me that I wasted my money on it at launch as well as premium for it :(  turn vsync off, and you have the newest beta drivers for the cards? A few updates ago they fixed crossfire stuttering supposedly


Yes I payed for premium and the digital deluxe preorder and am still mad I payed this much for the game. The drivers I have are 13.12 drivers
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a b à CPUs
January 12, 2014 6:11:51 PM

it's probably just the buggy game itself then...I can play it 60fps no problem with my single 7950 on ultra, but it would randomly crash, or crash and tell me my gpu needed to be upgraded to one with at least 512mb memory....when the 7950 has 3gb, it's utterly ridiculous lol.
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a b à CPUs
January 12, 2014 6:12:02 PM

Without V-sync, and using a real benchmarking tool and those drivers I am positive you will see good results.
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Anonymous
January 12, 2014 6:13:29 PM

don't think you find AMD fixed micro stuttering, more like made it less ? lol sozz about edits its late n I should get sleep lol
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January 12, 2014 6:29:45 PM

Unigine Valley Benchmark 1.0

FPS:
65.8
Score:
2752
Min FPS:
25.3
Max FPS:
130.6
System

Platform:
Windows 7 (build 7601, Service Pack 1) 64bit
CPU model:
Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz (3502MHz) x4
GPU model:
AMD Radeon HD 7800 Series 13.251.0.0 (2048MB) x2
Settings

Render:
Direct3D11
Mode:
1920x1080 8xAA fullscreen
Preset
Extreme HD
Powered by UNIGINE Engine
Unigine Corp. © 2005-2013
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a b à CPUs
January 12, 2014 6:34:37 PM

Looks pretty good to me for those cards!
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a b à CPUs
January 12, 2014 7:02:31 PM

I've got 2x 7850s (OC) and they weren't bottlenecked by an 8350 (the i5 is marginally faster than the 8350) and I was never bottlenecked. I would say the i5 is fine and you probably have an issue with drivers or maybe vsync is enabled. First try Vsync. Then try the drivers (as Battlefield 4 is relatively new and older drivers may make it run slow).
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a c 95 à CPUs
January 12, 2014 10:55:01 PM

crossfire = poo
BF4 = poo
so theoretically, and I'm no expert mathematician, but....
crossfire + BF4 = poo poo

But as always, update to latest drivers, remove AA in game settings will help too.
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Best solution

Anonymous
January 14, 2014 3:22:04 AM

iam2thecrowe said:
crossfire = poo
BF4 = poo
so theoretically, and I'm no expert mathematician, but....
crossfire + BF4 = poo poo

But as always, update to latest drivers, remove AA in game settings will help too.


lmfao... I found crossfire fun to experiment with, but in the long run when I built my first Quadfire system 4 x HD3870's it was probs the biggest waste of money I ever spent, although it didn't stop from crossfire'n 2 x 4870's later, it was grate when it worked or games it did work with but still money would of been better of spent on a good 1 x graphics card based system .. I don't bother with crossfire or sli any more. but if ya new to it, then it can be fun tech to have.


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