Bitcoin Forum

I just bought a Thinkpad with this new graphics chip, and apparently, it's OpenCL capable. Has anyone tried running a miner on it yet? If so, what are the numbers like?

specific model?  If I'm correct, all 4000 series is under 110 mhash

There's only one model, with many different clockspeeds. 16 execution units...

110 M/hash? That's pretty damn good if true.

screenshot in studio)

Based on it's OpenCL benchmarks it should be around 100MH/s for desktop HD4000 MHz speeds. However Intel has licensed Nvidia IP so I'm not sure what the actual MH rate will be. Any bitcoin miner with a 3570K, 3770K or IB notebook who could find out what the real world numbers are?

I'm getting my T430s from Lenovo in two weeks, so I'll run a miner when I get it. This has to get a better performance per watt than my GTX 560 Ti, which does only 60-80 M/hash...

It's not even a proper gpu, would be worth with 48xx with free/stolen electricity, otherwise you'll be losing money. Anything lower than that and you are also losing your time.

100 M/hash for only 25 watts of electricity sounds like a good deal to me. Especially if Intel's OpenCL drivers are up to snuff.

If you were buying FPGAS, I dont see how these cpus outprice the current fpgas on the market.

Street Price: 3570K - £179.99 3770K - £259.99 excluding motherboard/memory/psu etc. which would add between 50-100% on that per cpu usable unit for mining for only 100mh, sounds like a terrible investment.

But what if you needed a new computer and CPU anyway? Those costs would be factored in. Just electricity.

Those things aren't going to hit 100 MH/s are you kidding? Try 10 MH/s.

The integer performance of a 6770M (what I have in my laptop) far outstrips what the HD4000 is capable of and it only gets 75 MH/s.

Hmm... I think 40-50 M/hash might be more realistic, then.

But at any rate, the HD 4000 is the most power efficient mining chip out there, with the exception of FPGAs.

2 MH/J is power efficient? What? Even at the proposed 100 MH/s (4MH/J) is not all that impressive.

Pardon me, I am coming from mining on an Nvidia GPU and the numbers look impressive.

I get around 20mhash with a 3770k stock, using all cores with Ufasoft. I don't know how to mine with the HD graphics though.

I believe a kernel needs to be written for it, although you could try playing around with one of the OpenCL miners like poclbm.

Lol whoever said around 100mhash is mad.

Intel HD4000 is hardly better than Radeon HD6450 so 20mhash is max.

shit, mybad.  I thought he was talking about radeon HD4xxx series LOL

http://www.computerbase.de/artikel/grafikkarten/2012/test-intel-graphics-hd-4000-und-2500/drucken/

Has some decent OpenCL grunt, but I did say since it's based partly on Nvidia licensed IP that it will probably not perform well for Bitcoin purposes. Is there an OpenCL benchmark that can be used to gauge Bitcoin performance? Would save the trouble of trying to get an actual miner running.

When I first got my new processor, I went to see if I could mine on my Intel HD graphics 2000, the miners in GUIMiner don't even show my gpu.

Are any miners picking up your 4000?

The Intel HD Graphics 2000/3000 are not OpenCL capable. The new 2500/4000 are.

And for the record, I still don't have my Thinkpad on hand yet.

Ah, ok. What made me believe it would work though, I thought I seen something about openCL when I first installed the drivers for it.

Good to know why it was not showing up, thanks man.

With the Sandybridge CPUs they have an OpenCL driver but it is run by the CPU not the GPU. As has been said, Ivybridge has OpenCL capable graphics.

I haven't used this chip you're talking about. Considering though a GPU like 5750 hashes for about 170MH/s and the APU of AMD A8-3850 (which is 6550) does a 65MH/s, I seriously doubt this Intel chip can go up to 100MH/s.

Waiting for XX55XX to post real life results from his new laptop :)

Note sure if this has any relevance or not, but depending on the workload, the Intel HD 4000 can be faster than the A8-3850 in terms of compute:

http://www.tomshardware.com/reviews/ivy-bridge-benchmark-core-i7-3770k,3181-6.html

We'll see when I get my laptop in... two weeks. Lenovo's been having supply problems, unfortunately, from what I read.

I have a desktop with a 3770k as I said before. Isn't it not possible at the moment to run an OpenCL miner with the HD4000 gfx? Nothing comes up in guiminer.

You may need to install an additional driver...

Just got my laptop. Will test out mining tomorrow.

keep us updated

You will likely need to install Intel's OpenCL package. Also, GUIMiner -only- looks for AMD APP (SDK 2.4 or higher) before "enabling" the rest of the program. Once you have 2.4, 2.5, or 2.6 installed, GUIMiner will run normally. You will then have to configure your miner (GUIMiner is not a miner. It is a frontend. A GUI. Nothing more.) to use the Intel OpenCL platform instead, and hope it recognizes the HD4000 graphics.

I think you can use GPU Caps Viewer to analyze each OpenCL platform and compatible devices for each platform if GUIMiner is acting weird, to make sure the HD4000 is an acceptable device for Intel OpenCL.

save the trouble and try cgminer :p

It appears that Intel's latest drivers for the HD 4000 includes OpenCL drivers as well. I'll have a report for you guys back by early evening.

Anyways, my T430s has the base standard voltage Core i5 processor - 3320M, I believe?

Okay, about to install Bitcoin and GUIMiner. Should have a report back in about an hour.

Okay, results are just abysmal.

4.3 M/hash per second on average on the Intel HD 4000.

I'm going to install Intel's overclocking utility to see what I squeeze out...

Also, any flags I should try to improve performance? This is even worse than the NVS 4200M on my T420, which got 10 M/hash per second on average.

Wonder if it is actually running off the CPU? That's how OpenCL worked with the HD3000 but the HD4000 is supposed to work.

GUIMiner identified the HD 4000 correctly. Plus, the CPU is only being pegged at 8% usage, so obviously the GPU is doing some work.

I suspect Intel's drivers may need some tuning...

Shame Intel licensed shader tech from Nvidia and not AMD. =S

Frankly I'm not surprised. You know what they say about Intel video...

It's not that bad at gaming, though.

Oh well, maybe Haswell will be the godsend many of us are looking for. I was using the Windows 8 beta drivers, so that might be it.

Not surprised by this one bit, once I saw the specs of the GPU.
Keep trying Intel :)

Well HD4000 is over HD6450 in terms of 3D performance, there is some other problem over there, maybe similar to the nvidia one.

That's not a problem, an HD 6450 only has 160 stream processors. It's not the godzilla of the graphics world. My 3870K APU has 400 stream processors and OC'd to 900Mhz I get 98MH/s. pretty much inline with half a 6770 with 800 stream processors.

That chip with the HD 4000 is performing pretty much where it should.

Actually ive seen the HD4000 beating HD6550D on most of the game bechmarks.

But, gaming and mining are two diferent things anyway.

I don't really think so. It can't beat it stock and it sure can't beat it overclocked - and these aren't small margins, so where that information came from is beyond me. The difference is even more serious in graphics intense games like Diablo III.

Basically the difference we see gaming and mining is quite equal.

http://www.bit-tech.net/hardware/2012/05/28/intel-hd-4000-investigation/1

100mh/s... not bad for a $100 CPU.

Granted it's only ~1.5BTC a month, but it's better than a single core Sempron 140 that you can barely sell for $10 used.

Which can be unlocked to dualcore athlon II. Steal for such price.
 http://forums.overclockers.com.au/showthread.php?t=806576