New ccMiner Fork with Optimized Kernels for Maxwell by SP

8 Nov


This is something that will be of interest for Nvidia GPU miners that use GeForce GTX 750/750 Ti or the newer GTX 970/980 GPUs – a new ccMiner fork with optimized kernels for the Maxwell architecture (Compute 5.0 or 5.2) by SP. The ccMiner release 1.4.6.sp.Beta6 (source) is forked from tpruvot’s release supporting most of the available algorithms, but the focus here is to get the maximum performance out of the Maxwell GPUs. We have compiled a windows binary of the miner that you can download from the below, it is a 32-bit version compiled with VS2013 and with the latest CUDA 6.5 that has official support for GTX 970 and GTX 980 GPUs. Do note that archive includes a compiled binary for Compute 5.0, so it will not work on older video cards that are not based on the Maxwell architecture. Our tests have show that on a stock GeForce GTX 980 video card with no overclock we are getting about 7550 KHS for X11 up from about 6500 with the ccMiner 1.4.5-tpruvot under the same conditions and on the same hardware, X13 is up to about 6000 KHS with the SP optimized miner versus about 5300 KHS with the version from tpruvot. So definitely worth trying if you have some Maxwell hardware and you are mining with it to get the best possible performance, overclocking of course also brings the hashrate higher.

You can download the ccMiner fork by SP optimized for Maxwell GPUs for Windows OS here…

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12 Responses to New ccMiner Fork with Optimized Kernels for Maxwell by SP


November 8th, 2014 at 17:09

how much khs does 750 Ti achieve on this version?


November 8th, 2014 at 17:49

I am getting around 2% speed increase on my 750 TI mining X11

At least very nice to see someone is working in ccminer again.


November 8th, 2014 at 17:53

Our test with a non-overclocked GTX 750 Ti gets around 2500 KHS with this miner for X11.


November 8th, 2014 at 19:55

Crashes without a stratum connection (getwork/local mining doesn’t work), otherwise mines fine with 1-2% hashrate increase.
Much appreciated thanks!


November 8th, 2014 at 20:05

Correction: not 1-2% but nearly 4%


November 9th, 2014 at 05:22

How about on X13 algo?


November 9th, 2014 at 13:09

The non-overclocked GTX 750 Ti gets around 1950 KHS with this miner for X13.


November 10th, 2014 at 18:05


November 10th, 2014 at 18:21

I’m getting 6200ish with GTX 970 (Zotec variety)


November 11th, 2014 at 11:45

I hope you continue to make posts like this, I like having the latest miners (beta even), but have no idea how to compile


November 11th, 2014 at 13:42

Running a GTX 970 MSI overclocked here with custom bios.

Currently at 7500khash/s with this miner for x11


July 9th, 2015 at 02:26

From 4400kh/s to 6600kh/s! Nice works!

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