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Title: AMD APP SDK 2.7 performance? Post by: crazyates on May 27, 2012, 03:04:27 AM 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 Title: Re: AMD APP SDK 2.7 performance? Post by: Zenitur on May 27, 2012, 06:49:43 AM 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 Title: Re: AMD APP SDK 2.7 performance? Post by: crazyates on May 27, 2012, 02:03:59 PM 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? Title: Re: AMD APP SDK 2.7 performance? Post by: telegdyd on May 27, 2012, 02:16:57 PM 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. Title: Re: AMD APP SDK 2.7 performance? Post by: lueo on May 27, 2012, 02:38:19 PM I think AMD has tweak some settings toward 7970.
6970 & 6990 with Freq/Mem as 920/795
7970 with Freq/Mem as 1125/975
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? Title: Re: AMD APP SDK 2.7 performance? Post by: crazyates on May 27, 2012, 08:20:38 PM I think AMD has tweak some settings toward 7970. .... 7970 with Freq/Mem as 1125/975
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? Title: Re: AMD APP SDK 2.7 performance? Post by: lueo on May 28, 2012, 12:25:38 AM 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
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? Title: Re: AMD APP SDK 2.7 performance? Post by: imsaguy on June 05, 2012, 05:59:13 PM 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. Title: Re: AMD APP SDK 2.7 performance? Post by: Zenitur on August 18, 2012, 07:24:53 PM 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)? |