Overclocking AMD Radeon R9-200 & HD7xxx, Share your OC and bencmark Scores here
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 Mar 8 2013, 12:23 AM
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#1
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Senior Member
2,141 posts Joined: Apr 2005 From: Polaris Galaxy  
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Just realized there's an OC thread for Radeon 7800/7900 series
 Here's mine: Sapphire Radeon 7870 XT 2GB Core: 1135MHz Memory: 1535MHz This is the best clocks (apart from memory since going higher gave negligible improvements) I could get on stock voltage without artifacts after 1 hour run of Valley  Kinda lousy compared to all you big boys with 7970s in CF  This post has been edited by Dreamworks: Mar 8 2013, 12:25 AM |
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Mar 8 2013, 09:54 PM
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#2
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Senior Member
2,141 posts Joined: Apr 2005 From: Polaris Galaxy
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QUOTE(shepard @ Mar 8 2013, 07:59 PM) Hmm I thought an oc'ed 7870 XT can at least scored 40FPS+..is it bottlenecked by your cpu? I've never tried single 7970 with valley though, might wanna test it at stock to compare, btw which driver version you're using now? For valley benchmark you have to install 13.2 beta 6 or beta 7.. My CPU is overclocked at 4.6GHz and RAMs at 1866MHz 9-10-9-28@1T   Is it possible that my card somehow reached 82 degrees like another forumer here and got throttled? 82 seems to be quite a low threshold number compared to CPUs at 105 degrees  Yup, now running Catalyst 13.2 beta 7. Maybe I'll rerun Valley at stock and post back  [EDIT] At stock clocks... FPS: 33.8 Score: 1416 Min FPS: 17.0 Max FPS: 64.6 This post has been edited by Dreamworks: Mar 8 2013, 10:59 PM |
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Mar 11 2013, 09:29 PM
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#3
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Senior Member
2,141 posts Joined: Apr 2005 From: Polaris Galaxy
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QUOTE(wongtheboy92 @ Mar 11 2013, 07:54 PM) Did you increase the voltage of gpu? An overclocked card with stock volt wont go that high during max-temp test like using furmark. I tried upping GPU volts all the way to 1.3V (default 1.187V), but improvements in max clock speed wasn't much... So I just settled with stock volts and pushed as far as possible without artifacts. |
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Mar 13 2013, 11:35 PM
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#4
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Senior Member
2,141 posts Joined: Apr 2005 From: Polaris Galaxy
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Just thought I'll post my overclocked/downclocked results here as well for 7870 XT in CrossFireX
 Core: 1100MHz Memory: 1400MHz (downclocked)  |
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Mar 14 2013, 10:36 PM
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#5
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Senior Member
2,141 posts Joined: Apr 2005 From: Polaris Galaxy
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QUOTE(shepard @ Mar 14 2013, 05:01 PM) Any reason why you downclock memory? Is it due to heat or instability during benchmark run? Just trying to reduce power draw as I see lowering memory clocks have no effect in Valley. But I already have it back at 1500MHz now  |
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