"Graphics Processing Unit" - The specific component on a video card which performs active processing of images. GPUs are commonly used in Bitcoin mining as they are much more efficient at certain varieties of integer math which are a major part of the hashing process underlying Bitcoin mining.
Questions tagged [gpu]
91 questions
11
votes
6 answers
Why would someone rent hashing power?
I have seen some people on the bitcointalk forum looking for hashing power to rent (here is one example) and usually they pay more to rent the rig than they would earn by selling the mined coins at market price.
It seems to me that they are losing…
nmat
- 11,479
- 14
- 50
- 78
7
votes
4 answers
Now that my GPU mining rig will be made obsolete, where to turn?
With the return from GPU mining likely to be affected by ASICs, where can miners turn their machines? Should I become a pro gamer? Join a rendering farm for cash (do they exist?) and let Disney use my rig to make toystory 4? Donate it to SETI@HOME…
gesell
- 655
- 1
- 7
- 10
7
votes
1 answer
What OpenCL video cards (or FPGAs) are best for multiplication?
I'm benchmarking some Bitcoin related software and am looking for cards that are better at parallel multiplication vs parallel addition.
Is there any prior work that may have this information? Perhaps for mining?
What GPU features should I look…
makerofthings7
- 12,656
- 11
- 60
- 129
7
votes
1 answer
What is the most cost effective GPU mining rig?
I'm looking for specific part numbers for CPU, GPUs, motherboards, cases, etc.
Assume power doesn't matter.
Also, what sort of hash rate does it get?
Shamoon
- 2,819
- 3
- 34
- 52
7
votes
1 answer
How fast can one generate Bitcoin addresses?
Seeing as the topic of generating address conflicts comes up every now and then, I am wondering if someone looked into the problem a bit further.
Has anyone measured the speed at which Bitcoin addresses can be generated (mainly with some efficient…
ThePiachu
- 42,931
- 25
- 138
- 347
6
votes
1 answer
What is better for Bitcoin mining: More stream processors or faster clock?
I'm trying to understand the relationships between components in a video card and how it impacts Bitcoin mining.
What aspect of a video card is used during mining?
For example, I can find a Radeon 7950 or 7870 card with a price ranging from $100 to…
makerofthings7
- 12,656
- 11
- 60
- 129
6
votes
3 answers
ATI OpenCL V.S. NVidia Cuda Cores
First of all, i would like to say, i really don't want this thread to be some debate about your favorite video card manufacturer. So please just take that elsewhere.
I have heard from a lot of people that ATI & Open CL is much better for mining than…
deweydb
- 247
- 1
- 3
- 13
5
votes
1 answer
Bitcoin mining may reduce the lifespan of my video card?
I'm not using a mining-dedicated videocard, i'm using my only video card (Radeon 6850) and i'm getting around 0.11 btc/24h.
My concern is about reducing the lifespan of (or even burning) my video card with this.
Thiago Belem
- 153
- 4
5
votes
1 answer
GPU mining strategies (algorithm)
I am currently in the process of creating a fairly simple bitcoin miner for CPU and GPU (for demonstration purposes not for money earning).
However I am having a little troubling understanding how the GPU miners generally work. Now I do want a…
Jacob
- 151
- 2
5
votes
4 answers
Should I mine bitcoins or litecoins?
I don't pay for my own power, but I have two problems mining. I am CPU mining at 250 mhash/s because my AMD Radeon HD 7800 series graphics card will only produce 4.0 mhash/s (the other problem I'm having that I don't understand) but my main question…
Chizy
- 59
- 1
- 1
- 2
5
votes
6 answers
CGMiner no output (LTC GPU mining)
Here is my run command:
cgminer -o stratum+tcp://coinotron.com:3334 -u user -p pass --scrypt
the only output in my terminal I get is (and only this):
[2013-11-30 11:34:02] Started cgminer 3.7.2
if Ctrl+C it I finally get this output:
[2013-11-30…
Veles
- 153
- 1
- 1
- 5
4
votes
4 answers
When will FPGAs and ASICs 'replace' GPUs for mining?
Please explain in detail, or provide an an estimate, at least.
Marco Scannadinari
- 41
- 1
- 2
4
votes
2 answers
How can I enable more GPUs in Ubuntu for poclbm?
I have an Ubuntu set up (11.10) and 2 ATI Radeon HD 6870 cards. It detects one, but not the other for some reason when I try to run poclbm.
When I run lspci, it finds both cards.
Any help?
Shamoon
- 2,819
- 3
- 34
- 52
4
votes
1 answer
How do I know when my mining GPU has been worn out?
How do I know for sure when my mining hardware (GPU in particular) has failed?
How can I be certain that my card is at fault and not my software or overclock settings?
Example: On my rig one of my card's hashrates updates the hash/sec display very…
Sean Chapman
- 1,740
- 1
- 17
- 30
4
votes
4 answers
Start cgminer only on the second card HOW?
I have two video cards. My main card is a nvidia 650ti and my second is an AMD R9 280x. My monitor is connected to the nvidia and I use it for normal things. I want to start cgminer only on my second card - the AMD R9 280x. I tried with cgminer -d1…
user1761818
- 522
- 3
- 6
- 12