Right now my dad has a computer with the following stats: *Intel i7 3930K Hex Core CPU *64GB DDR3 System Memory *ZX5 Dual ATi Eyefinity 7970 GPUs *240GB Intel 520 Series SSD System Drive + Dual 2TB Automatic Backup Data Drives in RAID 1 I was thinking of investing in a 25 GH/s Bitcoin Miner So my question is what else would I need for bitcoin mining? How much should I expect power usage to be? and I assume I'd be putting out 25,000 MHash/s...? I'm real new at this but I'm figuring since I already have a solid CPU rig it wouldn't be too much more of an investment to start earning with bitcoin mining? or am I completely off-base with that?
Prices include shipping and discounts when available.
Edit: Forgot to add the optional mesh side panel with 4x 120mm fans I already have the motherboard, processor, storage and power supply. Remembering that these are Australian prices, how does this build look for a general purpose workstation / folding / gaming rig? It's main goal is for 120FPS on 120Hz monitors in eyefinity (Once you've gone 120Hz you can never go back), and compute (fold/mine) like a mofo, but I also work on it. (Autodesk suite, Premiere, 3DSM, SolidWorks, Inventor and more) I would have liked to have gone a little further here and there, but I have to draw the line somewhere. To be specific where I would have liked to not cut corners:
I really wanted to watercool the whole setup but I haven't decided on phase change or conventional radiators. Additionally, the waterblocks alone come to $660 ($165 each) before you factor in anything else, and while I'd love to spend the time planning the water loop, case mods and chiller, I can't delay putting this rig off much longer, so I'm leaving water for 'Stage 2' when I have the time and effort to modify the case.
On the SSD I would have liked a couple of units like the Corsair Force GT series but they're simply too expensive right now and the SanDisk extremes bench very well and are on a promotional offer that is too good to pass up.
Additional storage would be nice to have but right now I don't need it and I can buy it later when the time comes.
Additional RAM would be nice for having a large RAMDisk but the motherboard and excess cost force me to limit myself to 16GB which should still allow for a small RAMDisk. The Corsair Dominator GT series has that aesthetic appeal but not worth the cost in my opinion.
Individually sleeved PSU cables look gorgeous but the stores here only stock the ones for AX-650/750/850. The AX-1200 set is $106 + shipping and not necessary so I've left it out. I may get them anyway.
Speaking of the case, I really did want the Lian Li PC-X2000F as it just looks absolutely phenomenal to me but I can't justify spending $700 on a case. Secondary choice was the CoolerMaster Cosmos II but the bulk, lack of window and price has me choosing elsewhere.
The power supply will be pushed to its limit while running benchmarks overclocked (apparently can draw in excess of 1500W from the wall or 1200W system draw during Furmark/Prime95) but it's one of the best units on the market and is designed to handle even higher peak wattage (if only slight). I got a really good deal on it while I was planning for trifire and don't see a good enough reason to go to the effort of selling it for a higher rated SilverStone ST1500G when the Corsair unit is only going to be pushed near its designed limit in certain scenarios, and never past it. I have the equivalent of a Kill-A-Watt for Australia and if the unit proves inadequate I can still exchange it later. Downsides are I' going to have to use four of the peripheral power outputs adapted to 6-pin PCI-E as I'm two short. As a bonus, it looks really nice in the 650D.
The motherboard is fairly low-end but I already purchased it for a different build and may as well use it. I had planned for an Asus Rampage IV Extreme that I will go into detail below.
The quadfire dilemma I had not originally planned to go for quad 7970s, the aim was just trifire to push me near that 120FPS for eyefinity, well beyond in the most intensive games for a single monitor and reduce microstuttering. I did not like the idea of the cards trying to peel hot air off the PCB on its sibling card like they were suffocating and suffering from asthma, so I planned on using an Asus Rampage IV Extreme, using slots one, four and seven to allow a one expansion slot gap between each card, in a Raven RV02 (non evo). Then my buddy (who also does Bitcoin mining) pointed out that if I kept the gigabyte board I would only spending an additional $0~ to $200~ (depending if I sold the Gigabyte board) by NOT purchasing the much more expensive Asus board and getting a fourth 7970 instead. We worked out the math and the extra card's Mhash/s would pay for itself in two months. Noise and heat aren't a huge issue as it's only temporary until I sort out the water loop. I'll also be getting a bit more gaming performance (when it works) and my general workstation tasks like rendering (V-Ray RT, SW etc.) will also be happy with the extra GPU compute power. Displays I have a HighGrade triple 24" stand and had to return the monitor I just bought, and am still yet to decide 100% on which displays but I am leaning towards three BenQ XL2420T 24" 120Hz 1080P monitors. Unlike the 120Hz Samsungs, they have VESA mounts and unlike the 120Hz Asus monitors, I'm not paying a premium for Nvidia 3D Vision that I'm not going to use. Really looking for suggestions/recommendations here! The case The 650D can fit a thin 280 rad in the top & 120 on the rear. With the HDD cage removed, 200 in the front or 240 on the floor, perhaps a combination of both with some modification (though unlikely, I enjoy a challenge). I could make it nice and neat, but I think I still prefer a chiller under my house with lines routed through the floor. Thinking of using a quality 1/4HP or 1/10HP Aquarium chiller for the job (only a couple hundred more than a good radiator setup). I'm still not 100% set on the 650D and open to other case suggestions. I appreciate the functionality of the Switch 810 but I do not like its aesthetics or size at all. Caselabs are too expensive once optioned and shipped to Australia. Very open to suggestions here also. Thanks!
Why do more expensive GPUs have worse MH/s rates than less expensive GPUs and graphics cards?
For example, on this page of mining hardware from the sidebar, the NVidia Tesla K20 gets 134.8 Mhash/s and costs over $3,000.00, while an ATI 7970 gets 825 Mhash/s and costs about $380.00. Presumably the NVidia has a higher flop rating than the ATI, so why doesn't the more powerful NVidia have a higher mining rate? Is it that the NVidia simply isn't made for the kind of computing involved in bitcoin mining? EDIT: The ATI card has the following specs
3.79 TFLOPS Single Precision compute power 947 GFLOPS Double Precision compute power 2048 Stream Processors
The NVidia Card has the following specs:
CUDA cores 2496 Peak double precision floating point performance 1.17 Tflops Peak single precision floating point performance 3.52 Tflops
So the Flops are comparable overall, and the NVidia card has more cores. I don't understand how the ATI gets over 6 times the Mhash/s than the Nvidia does.
I'm using a 7970 with CGMiner at intensity of 9 and Core Clock at 1100. I run between 670-700 mhash/sec. I'd recommend CGMiner if I were you. Luckily my space has A/C included so I just keep it at 64 degrees F and have no worries about overheating. Runs at right around 80 C. My last 24 hour average was 660 Mhash/sec. That was with a short ... You are here: Home / Mhash Bitcoin / Bitcoin Performance 7970. Bitcoin Performance 7970. zSprawl's zApps October 6, 2014 – 17:56. This is a very specific article meant to target a very small subset of geeks out there. Sure, there are many of us geeks, and a large number have heard of this craze the last few years called Bitcoin. After Bitcoin became popular, like tv news popular, a number of ... Bitcoin mining » advice on 7970 sapphire for mining; Advertise with us (we do not endorse any site advertised) « previous next » Print; Pages:  Go Down. Author Topic: advice on 7970 sapphire for mining (Read 1986 times) 0 Members and 1 Guest are viewing this topic. qwerty55. Newbie; Joined: Apr 2013; Location: Manila; Posts: 16; Country: Karma: +1/-0; Gender: Bitcoin Address: ... Bitcoin 7970 hash rate. DIAMOND Radeon HD 7970. DIAMOND Radeon HD 7970 hash rate for Bitcoin (SHA-256) and Litecoin (Scrypt) can be seen in the table below. GPU Hash Rate SHA-256 Hash Rate Scrypt Core Clock Mem Clock V Locked P. Factor Price Rating; DIAMOND Radeon HD 7970: 760 Mh/s. Top 5 Submitted Hash Rates; 760Mh/s; Votes:1 . 498 Kh/s. 760Kh/s; 630Kh/s, Core Clock: 1175, Memory Clock: 1600 ... I’m sure most of you have heard of Bitcoin, Litecoin is similar to Bitcoin and is just another form of Digital Currency. I’m writing this with the assumption that you are familiar with “mining” and that you are here because you have a 7970 you are trying to mine with. I’ve spent some time trying to get a decent hash rate out of the PowerColor HD7970 V3 I bought a couple of weeks ago ...
Selling this card. Used it for BTC Mining before the difficulty got too hard. Now I've just been using it for gaming until I just recently upgraded to a XFX R9 290, so I don't need this guy ... 6 Mhash /s bitcoin litecoin mining rig. 4x R9 290 1x R9 280oc. 1x Hd7950 3x 7970 CHECK OUT COINCHAT (EARN BITCOIN) http://coinchat.org - mingle in the social chat with other crypto currency users and miners CAUTION: Trying this at home co... Bitcoin Mining Rig 4X 7970 Watercooled - Duration: 6:40. joshv06 50,115 views. 6:40. How To Scrypt Mine Litecoin Tutorial - LiteCoin For Beginners - Part 1 - Duration: 15:29. ... This is just an intro to my bitcoin mining rig, it's a quad 7970 watercooled rig hashing at ~2.6Ghash.