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Author Topic: AMD APP SDK 2.7 performance?  (Read 8748 times)
crazyates
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May 27, 2012, 03:04:27 AM
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I just noticed that version 2.7 of the AMD APP SDK was released last week. I was wondering if anyone's downloaded it, and if they've seen any performance increase/decrease when mining?

I'm only using 58xx cards right now, so I doubt it'd be worth it for me to upgrade (still using 2.5). However, I plan on buying a 7970 in the near future, so I'm gonna have to upgrade when that happens, and I wonder if this is better than 2.6.

Thoughts? Speculation? Personal experience?

Here's the link:
http://developer.amd.com/sdks/AMDAPPSDK/downloads/Pages/default.aspx

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May 27, 2012, 06:49:43 AM
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Tested on Linux and ATi Radeon HD 5850. AMD APP SDK 2.7 in system with Catalyst 12.4 was installed manually. Cg Miner 2.4.1. Core Peak - 750 MHz, Memory Peak - 250 MHz.

Driver  SDK  Perfomance

12.1     2.6   301.9 Mh/s
12.4     2.7   298.5 Mh/s
11.11   2.5   307 Mh/s
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May 27, 2012, 02:03:59 PM
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Tested on Linux and ATi Radeon HD 5850. AMD APP SDK 2.7 in system with Catalyst 12.4 was installed manually. Cg Miner 2.4.1. Core Peak - 750 MHz, Memory Peak - 250 MHz.

Driver  SDK  Perfomance

12.1     2.6   301.9 Mh/s
12.4     2.7   298.5 Mh/s
11.11   2.5   307 Mh/s

I also use CGMiner. What kernel was this? Phatk? It was my impression that if you have to use 2.6 on a 58xx card, diablo was better than phatk.

The fact that it doesn't give amazing results on a 58xx cards doesn't surprise me, and it's kinda why I havn't upgraded myself. Anyone with a 7xxx card tried it out?

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May 27, 2012, 02:16:57 PM
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I'm using it at the moment. Win7 64bit, cgminer.
Sapphire 5970's, core: 785mhz memory: 503mhz. Its a bit undervolted.
i: 8

Getting 345mh/core with these settings.
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May 27, 2012, 02:38:19 PM
 #5

I think AMD has tweak some settings toward 7970.

6970 & 6990 with Freq/Mem as 920/795
DriverSDKPerformance
11.112.5410~413
12.32.6410~413
12.42.7410~413

7970 with Freq/Mem as 1125/975
DriverSDKPerformance
12.32.6660~666
12.42.7655~661

Tested on Linux and ATi Radeon HD 5850. AMD APP SDK 2.7 in system with Catalyst 12.4 was installed manually. Cg Miner 2.4.1. Core Peak - 750 MHz, Memory Peak - 250 MHz.

Driver  SDK  Perfomance

12.1     2.6   301.9 Mh/s
12.4     2.7   298.5 Mh/s
11.11   2.5   307 Mh/s

I also use CGMiner. What kernel was this? Phatk? It was my impression that if you have to use 2.6 on a 58xx card, diablo was better than phatk.

The fact that it doesn't give amazing results on a 58xx cards doesn't surprise me, and it's kinda why I havn't upgraded myself. Anyone with a 7xxx card tried it out?

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crazyates
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May 27, 2012, 08:20:38 PM
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I think AMD has tweak some settings toward 7970.

....

7970 with Freq/Mem as 1125/975
DriverSDKPerformance
12.32.6660~666
12.42.7655~661


That's what I was looking for. So even with a 7xxx series card the new version is still slower? Is this an SDK issue, or you think it's just that current kernels are not written for 2.7?

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May 28, 2012, 12:25:38 AM
 #7

I think it's tiny difference (~0.7%), and I'm still testing the stability of both drivers.

For me, stability is more important than performance.

I think AMD has tweak some settings toward 7970.

....

7970 with Freq/Mem as 1125/975
DriverSDKPerformance
12.32.6660~666
12.42.7655~661


That's what I was looking for. So even with a 7xxx series card the new version is still slower? Is this an SDK issue, or you think it's just that current kernels are not written for 2.7?

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imsaguy
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June 05, 2012, 05:59:13 PM
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Tested on Linux and ATi Radeon HD 5850. AMD APP SDK 2.7 in system with Catalyst 12.4 was installed manually. Cg Miner 2.4.1. Core Peak - 750 MHz, Memory Peak - 250 MHz.

Driver  SDK  Perfomance

12.1     2.6   301.9 Mh/s
12.4     2.7   298.5 Mh/s
11.11   2.5   307 Mh/s

Why not keep the same drivers and update only the sdk?  That'd give a better indicator.

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Zenitur
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August 18, 2012, 07:24:53 PM
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Tested on Linux and ATi Radeon HD 5850. AMD APP SDK 2.7 in system with Catalyst 12.4 was installed manually. Cg Miner 2.4.1. Core Peak - 750 MHz, Memory Peak - 250 MHz.

Driver  SDK  Perfomance

12.1     2.6   301.9 Mh/s
12.4     2.7   298.5 Mh/s
11.11   2.5   307 Mh/s

Why not keep the same drivers and update only the sdk?  That'd give a better indicator.

I doesn't tried. Do you mean Catalyst 11.11 and AMD APP SDK 2.6 or 2.7 (libOpenCL.so.1)?
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