I was surprised to see it worked out of the box on a FirePro V, while BOINC doesn't seem to recognize the GPU. Testing a 120000 digits number took about 6:30 minutes. For the first time ever I can hear the GPU fan...
Recently I was doing some manual testing using cllr on 20E3-30E3 digit numbers on a laptop with Ryzen 5 and they took around 8 minutes each. Proth20 took half a minute!
So I'm really looking forward to use this on a more serious GPU, it will probably blaze through the candidates. Also it should have a significant impact on Primegrid once it can be used here.
Primes: 1281979 & 12+8+1979 & 1+2+8+1+9+7+9 & 1^2+2^2+8^2+1^2+9^2+7^2+9^2 & 12*8+19*79 & 12^8-1979 & 1281979 + 4 (cousin prime)