CPUs will be very slow compared to GPUs and most people don’t own an Xeon or i7 processors.
Pretty soon GPUs will be hitting 100Sol/s which is like 5x i7.
2nd generation i7 (2600) is 21 Sol/s. 3rd generation (3770) is 23.5 Sol/s. i7-6700k is already 40 Sol/s according to nicehash. Maybe similar improvements can be made with CPUs?
im only hitting 30 sols on average with the i7 6700k with a 4.4 ghz overclock using nhminer
Yes, I saw yours and another’s post on i7-6700k. I don’t know why you’re slow. I’m 23.5 on i7-3770 which is AVX but not AVX2, and if you have 2 or more DDR4 2133 cards installed you are 35% faster on memory bandwidth. My GHz is 3.4, turbo is 3.9. Your chip is 3 years newer and uses 25% more watts (35% with the overclock?), so unless Moore’s law officially stopped in 2012 instead of 2015, something seems amiss. Do you see an improvement if you try 10 threads instead of 8?
I assume you are using xenoncat instead of tromp. From the nicehash github release page
very fast CPU implementation (up to 40 Sol/s on i7-6700K CPU @ 4.00GHz), based on xenoncat solvers;
yea i’m using xenoncat
What’s your DDR type? Let’s us know if you do better with 10 threads.
I don’t think he’s alone. I’m running kost/nheqminer with the latest Xenoncat AVX2 solver on a liquid cooled (steady 60c) i7-6700k (regular full 4.2GHz turbo speeds on all cores) w/ dual channel DDR4 2400 RAM (w/ XMP timings) and it doesn’t break 25 sol/s and consumes 120W from the wall when running CPU-mining only. I also have an i7-3770s running at 3.5GHz w/ the AVX1 solver that runs 20 sol/s at 80W from the wall - 20% more efficient!
I couldn’t tell you why, I’m just as mystified as you are.
Here’s my i7-3770, 8 GB DR3 1600 getting 23.5 Sol/s, the last few seconds (nanopool).
Nanopool says this $215 (up to $330 on ebay) desktop at 90 W gave me 25.5 Sol/s the last 6 hours. I don’t know how they figure that. [edit: it seems they have a lot of variability in the calculation for some reason]
Intel(R) Core™ i7-3770 CPU @ 3.40GHz
[05:17:40][0x00007fc4da16c700] stratum | Accepted share #437
[05:17:47][0x00007fc4dbd16740] Speed [300 sec]: 12.51 I/s, 23.3433 Sols/s
[05:17:57][0x00007fc4dbd16740] Speed [300 sec]: 12.5133 I/s, 23.3633 Sols/s
[05:18:01][0x00007fc4da16c700] stratum | Received new job #1478251081
[05:18:07][0x00007fc4dbd16740] Speed [300 sec]: 12.5033 I/s, 23.3367 Sols/s
[05:18:17][0x00007fc4dbd16740] Speed [300 sec]: 12.5067 I/s, 23.4067 Sols/s
[05:18:27][0x00007fc4dbd16740] Speed [300 sec]: 12.49 I/s, 23.3567 Sols/s
[05:18:37][0x00007fc4dbd16740] Speed [300 sec]: 12.49 I/s, 23.35 Sols/s
[05:18:44][0x00007fc4da16c700] stratum | Received new job #1478251124
[05:18:47][0x00007fc4dbd16740] Speed [300 sec]: 12.4567 I/s, 23.26 Sols/s
[05:18:57][0x00007fc4dbd16740] Speed [300 sec]: 12.4667 I/s, 23.22 Sols/s
But that’s not my most efficient which is i5, 3rd generation. 3 of them are 15 to 17 range and one is 18 Sol/s at 50 Watt from the wall to the desktop measured by killowatt. That would be 50 Sol/s at 140 Watts if it were a GPU, for $10 Sol/s. I need to see what’s going on with that machine, 15% better than its twins. All running desktop Ubuntu 14.04 in non-gui mode (made no difference). The i7-3770 is running in gui mode.
What the heck is happening 1.5M jump in 24hours?
Yes i saw, hang in there
This happens often. Hashrate is growing a lot latly so: