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Title: Anyone tried a VIA QuadCore for mining? Post by: Dhomochevsky on June 28, 2012, 01:59:51 AM http://www.via.com.tw/en/products/processors/quadcore/index.jsp
It seems it has hardware support for SHA256. Any idea on performance? Title: Re: Anyone tried a VIA QuadCore for mining? Post by: rjk on June 28, 2012, 02:02:23 AM http://www.via.com.tw/en/products/processors/quadcore/index.jsp Only recently did it become available on a motherboard, but I'm not interested in the formfactor that it became available on. However, the Quad Core is simply 2 Dual Core chips on one package, so testing a Dual Core should get some close numbers.It seems it has hardware support for SHA256. Any idea on performance? I do have a Dual Core (Zotac ZBOX NANO based on the VX900H chipset), so maybe I'll test it sometime. Title: Re: Anyone tried a VIA QuadCore for mining? Post by: crazyates on June 28, 2012, 03:37:56 AM http://www.via.com.tw/en/products/processors/quadcore/index.jsp Only recently did it become available on a motherboard, but I'm not interested in the formfactor that it became available on. However, the Quad Core is simply 2 Dual Core chips on one package, so testing a Dual Core should get some close numbers.It seems it has hardware support for SHA256. Any idea on performance? I do have a Dual Core (Zotac ZBOX NANO based on the VX900H chipset), so maybe I'll test it sometime. This makes it sound like it's got specific instructions or features for SHA256, sort of like SB's Quick Sync for video encoding. Title: Re: Anyone tried a VIA QuadCore for mining? Post by: goxed on June 28, 2012, 03:53:43 AM http://www.via.com.tw/en/products/processors/quadcore/index.jsp Only recently did it become available on a motherboard, but I'm not interested in the formfactor that it became available on. However, the Quad Core is simply 2 Dual Core chips on one package, so testing a Dual Core should get some close numbers.It seems it has hardware support for SHA256. Any idea on performance? I do have a Dual Core (Zotac ZBOX NANO based on the VX900H chipset), so maybe I'll test it sometime. This makes it sound like it's got specific instructions or features for SHA256, sort of like SB's Quick Sync for video encoding. The VIA Nano provides two of the most commonly used, SHA-1 and SHA-256, which are able to encrypt information at rates of up to 5 gigabits/sec. Title: Re: Anyone tried a VIA QuadCore for mining? Post by: AzN1337c0d3r on June 28, 2012, 05:06:14 AM The VIA Nano provides two of the most commonly used, SHA-1 and SHA-256, which are able to encrypt information at rates of up to 5 gigabits/sec. So that turns out to be a whopping 10 MH/s? Title: Re: Anyone tried a VIA QuadCore for mining? Post by: crazyates on June 28, 2012, 02:21:43 PM The VIA Nano provides two of the most commonly used, SHA-1 and SHA-256, which are able to encrypt information at rates of up to 5 gigabits/sec. So that turns out to be a whopping 10 MH/s? Hey, that's not bad for a CPU ;D Title: Re: Anyone tried a VIA QuadCore for mining? Post by: rjk on June 29, 2012, 01:26:15 AM The VIA Nano provides two of the most commonly used, SHA-1 and SHA-256, which are able to encrypt information at rates of up to 5 gigabits/sec. So that turns out to be a whopping 10 MH/s? Title: Re: Anyone tried a VIA QuadCore for mining? Post by: crazyates on June 29, 2012, 01:28:27 AM The VIA Nano provides two of the most commonly used, SHA-1 and SHA-256, which are able to encrypt information at rates of up to 5 gigabits/sec. So that turns out to be a whopping 10 MH/s? 27W for the full quad core. Title: Re: Anyone tried a VIA QuadCore for mining? Post by: rjk on June 29, 2012, 01:31:41 AM The VIA Nano provides two of the most commonly used, SHA-1 and SHA-256, which are able to encrypt information at rates of up to 5 gigabits/sec. So that turns out to be a whopping 10 MH/s? 27W for the full quad core. Title: Re: Anyone tried a VIA QuadCore for mining? Post by: BoardGameCoin on June 29, 2012, 01:55:48 AM So, I'm curious how fast these could go. the 10 MH/s above seems to be based on a (5 Gb/s) / (32 * 8 bits per sha256 hash) / (2 hashes per block hash)
Based on the following diff adding padlock support to openssl, it seems the instruction takes a round count. If the round count reduces memory pressure, perhaps the 2 hashes would take roughly the same time as one. This suggests that perhaps one of these quad cores could do up to 80 MH/s. http://www.logix.cz/michal/devel/padlock/kernel-sha/padlock-sha-complete.diff Of course this is all speculation. If someone has one of these to borrow I'd play around with it and see what I could get out of it. Even 80 MH/s is nothing significant. But I'm curious... -bgc |