puzzle #34 solved in 25 seconds with 1 1070ti. (44 seconds including the generation of starting points)
https://github.com/sp-hash/Bitcrack/releases/tag/4#4 cuda 10.2 ptx With more speed.
Might work on compute 8.0 devices as well, But the default thread/block/points configuration is using alot of memory.
Figured I would run the original cubitcrack just to see how long it would take to solve.
On a 1060 card, it completed the same #34 in a total of 51 seconds:
[2021-03-24.14:48:11] [Info] Compression: compressed
[2021-03-24.14:48:11] [Info] Starting at: 0000000000000000000000000000000000000000000000000000000200000000
[2021-03-24.14:48:11] [Info] Ending at: 00000000000000000000000000000000000000000000000000000003FFFFFFFF
[2021-03-24.14:48:11] [Info] Counting by: 0000000000000000000000000000000000000000000000000000000000000001
[2021-03-24.14:48:11] [Info] Initializing GeForce GTX 1060 6GB
[2021-03-24.14:48:11] [Info] Generating 18,874,368 starting points (720.0MB)
[2021-03-24.14:48:18] [Info] 10.0%
[2021-03-24.14:48:18] [Info] 20.0%
[2021-03-24.14:48:19] [Info] 30.0%
[2021-03-24.14:48:19] [Info] 40.0%
[2021-03-24.14:48:20] [Info] 50.0%
[2021-03-24.14:48:20] [Info] 60.0%
[2021-03-24.14:48:20] [Info] 70.0%
[2021-03-24.14:48:21] [Info] 80.0%
[2021-03-24.14:48:21] [Info] 90.0%
[2021-03-24.14:48:22] [Info] 100.0%
[2021-03-24.14:48:22] [Info] Done
GeForce GTX 1060 2785 / 6144MB | 1 target 113.58 MKey/s (5,398,069,248 total) [00:00:45][2021-03-24.14:49:11] [Info] Found key for address '1PWABE7oUahG2AFFQhhvViQovnCr4rEv7Q'. Written to '34test.txt'
[2021-03-24.14:49:11] [Info] No targets remaining
C:\Users\your\Documents\VanSearch>pause
Press any key to continue . . .
On your 1070Ti it took 44 seconds. Maybe someone else with a 1070 or 1070Ti can run the original cubitcrack and compare times. But your 1070Ti at 400+ MKey/s beat my 1060 with only 113 MKey/s. Doesn't sound right, doesn't look right...to me.