Radeon HD 7970 vs HD 6990 - GPUBoss

[Build Help] Dedicated Rig with 4x 7970 or 4x 7950 for Bitcoin Mining. [x-post from /r/bitcoin]

Hey Guys,
I built my first rig using the advise you guys gave me - a GTX680 gaming rig. It is however extremely inefficient for mining Bitcoins and other cryptocurrencies.
I wish to build a great ATI rig and put together two different set ups which essentially come down to a 4x7950 vs 4x7970. (it's almost impossible to get a 6990 let alone 4 of em).
Here are the tentative builds here. (I used pcpartpicker)
4x7970: [2] http://pcpartpicker.com/usedracodraconis/saved/1snT 4x7950: [3] http://pcpartpicker.com/usedracodraconis/saved/1sqM
Note that while the 7950 setup would have a lower hash rate, it also uses about 200W less power overall. I suppose, this may have a net benefit on electricity savings in the long run.
I am willing to spend a good amount of cash in pursuing this but want to be prudent about it as well. Would there be any way to optimize either build even further? I.e. cost savings/performance boost etc?
Also, is there a need for a riser card with my specific mobo? Will there be any notable difference in performance with/without it? If so, is there a particular brand I should get?
For reference values on bitcoin hash rates, see here: [4] https://en.bitcoin.it/wiki/Mining_hardware_comparison
It might seem like a pity to hook this up to a monitor and game on it, so I might do that at some stage :)
Here is the thread on /Bitcoin
Also, do you guys know of any video tutorials which show how to set up a 4way CrossFireX system? :D
Thanks for this guys, and apologies for the long post! Cheers!
submitted by badboyant to buildapc [link] [comments]

Radeon HD 7970 vs Radeon R9 280X Detailed Comparison (1080P; 1440P) NVIDIA GTX 690 vs GTX 680 vs GTX 590 VS Radeon HD 7990 vs HD 7970 vs HD 6990 (FPS) 7970 and r9 280x crossfire benchmarks. gta V на hd 6990 Benchmarks - (2012)AMD HD 7970 VS (2016)Nvidia Gtx 1080

Hello everyone Radeon 6990 vs Nvidia 680. Archive View Return to standard view. from March 2012; to April 2012; last updated – posted 2012-Apr-1, 8:20 pm AEST posted 2012-Apr-1, 8:20 pm AEST User #448061 946 posts. danielevitt. Whirlpool Enthusiast reference: whrl.pl/Rc8wTW. posted 2012-Mar-30, 12:38 pm AEST edited 2012-Mar-30, 12:47 pm AEST. ref: whrl.pl/Rc8wTW. posted 2012-Mar-30, 12:38 pm ... 4x 7970 or 4x 7950 build for bitcoin mining + other considerations in view of BTC + LTC fluctuations. Hey Guys, It seems like my post didn't get any love on the generic [1] r/litecoin subreddit, so hopefully you guys will be able to help me out. I wish to build a great ATI rig and put together two different set ups which essentially come down to a 4x7950 vs 4x7970. (it's almost impossible to ... Benchmarks Real world tests of Radeon HD 7970 vs HD 6990. Bitcoin mining Data courtesy CompuBench. Radeon HD 7970. 447.28 mHash/s. Radeon HD 6990. 265.3 mHash/s. Face detection Data courtesy CompuBench. Radeon HD 7970. 49.05 mPixels/s. Radeon HD 6990. 17.28 mPixels/s. Ocean surface simulation Data courtesy CompuBench. Radeon HD 7970 . 261.64 frames/s. Radeon HD 6990. 840.45 frames/s. Particle ... Genesis Mining, responding to falling bitcoin mining rewards for its customers, is offering a discount to help customers withstand the I'm sorry, but people transferir bitcoin a xapo who abuse the return policies Video Gaming Software That Mines For Altcoin My Coin Balance Genesis Mining bug the shit out bitcoin by coin of me. 7970 2048: 6850 960: 6870 1120: 6950 1408: 6970 1536: 6990 (6970x2 ... I currently have an HIS 6990 4GB GPU paired with i7 980X (OC'd to 4.1GHz) and 16GB 1600MHz RAM. Both GPU and CPU are being watercooled at the moment. I want to switch from AMD to nVidia and was wondering what card I should get. Anyone know what a good upgrade (or substitute) on the nVidia...

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Radeon HD 7970 vs Radeon R9 280X Detailed Comparison (1080P; 1440P)

GPU Wars: AMD 6990 vs Twin 7970 Video Cards in Crossfire - Benchmarks & Performance - Duration: 2 ... Overclocked AMD Radeon HD 6990 Vs R9 290 - Duration: 3:56. Bang4BuckPC Gamer 31,594 views. 3 ... i7 3960x DDR3 24GB 2133MHz NVIDIA GTX vs Radeon HD. NVIDIA GTX 690 vs GTX 680 vs GTX 590 VS Radeon HD 7990 vs HD 7970 vs HD 6990 (FPS) GPU Wars: AMD 6990 vs Twin 7970 Video Cards in Crossfire *Note* For the 7970 Video cards we used both XFX and Sapphire. CHECK THESE OUT: PRODUCT SPOTLIGHT: The Intel Next Unit of Computing (NUC ... Hey guys, today I display crossfire benchmarks for the 7970 and the r9 280x. I recently got myself a sexy new GTX 1080 which is a huge upgrade for me, having been running a HD 7970 for nearly 5 years now. Specs:- Windows 10 Intel i7 - 5820k Overclocked to 4.2GHz 32gb Ram ...

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