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Title: Why does everyone use AMD when using 2+ cards? Post by: kripz on July 03, 2011, 02:00:38 PM http://www.tehnoveikals.bit2u.biz/cache/product_images/big/20110323/mb_h61_s1155_matx_ga-h61m-d2-b3_giga-byte_1118356_425_0_425null.jpg
+ http://fl1.shopmania.org/files/photo-images/16071/intel-pentium-g620-skt-1155-retail~16070513.jpg + http://thumbs2.ebaystatic.com/m/mrrwgb9q9iagr_HywRieBCw/140.jpg Not bashing AMD. Purely discussing cost effective parts. CPU (Intel G620) is the same price as a cheap AMD (X2 260). Mobo can fit 4 cards for 2-3x less than a high end AMD board. Everything else is the same (DDR3, Sata HDD or USB Flash etc). 1x slot has no effect on the cards performance. Title: Re: Why does everyone use AMD when using 2+ cards? Post by: mrb on July 03, 2011, 04:30:12 PM The question of AMD or Intel platforms basically doesn't matter. But AMD almost always comes out a few bucks cheaper, and Bitcoin miners are tightwads, so that's one reason they favor it :-)
Also, the cheapest AMD processors ($38 Sempron 140, or half the price of your Intel G620) can be used in both entry-level motherboards with x1 slots (for someone who wants to connect his GPUs with PCIe extenders) as well as high-end motherboards with 4 or more x16 slots (for someone who doesn't want to mess with extenders). On the other hand, Intel artificially segment the market: the cheap motherboards typically take LGA775 processors, whereas high-end ones require more expensive processors. AMD's more flexible upgrade path is definitely one more aspect favored by miners who frequently rebuild/upgrade their GPU farms, as they can re-use the same processors and RAM. Title: Re: Why does everyone use AMD when using 2+ cards? Post by: dinzy on July 03, 2011, 04:49:24 PM Intel treats it's process engineers like shit. Don't buy from them if you can avoid it.
Title: Re: Why does everyone use AMD when using 2+ cards? Post by: CyberPhunk on July 03, 2011, 05:30:09 PM Maybe because for the price of just the processor/MB you posted I can get an AMD sempron, a full size ATX MB, 2GB ram AND a PSU?
Title: Re: Why does everyone use AMD when using 2+ cards? Post by: Jack of Diamonds on July 03, 2011, 05:53:14 PM That board can only house one GPU.
If you want to use more you will have to spend on 3 riser cables and a chassis that can lift-mount the GPU's because they wont be able to function next to each other. There isn't even a guarantee the mobo can supply power to 4 GPU's, it's only specified for one. X1 lanes on cheap boards are primarily for sound cards, ethernet cards etc. that take next to no wattage at all. Drawing 225W 24/7 will probably kill them. Title: Re: Why does everyone use AMD when using 2+ cards? Post by: kripz on July 03, 2011, 11:37:07 PM That CPU is 1155. More upgradeable than AMD unless you get an AM3+ motherboard (which at low end, i dont think they are).
Most dedicated rigs dont even use a case or will use a custom made one. Board works fine, if you really are worried about power get a riser cable and mod it (I didnt mod my 4 and it works fine). Not that 16x gives out any more power than 1x: http://pinouts.ru/Slots/pci_express_pinout.shtml, extra power is drawn from the 6 and 8 pin connectors. These slots are PCI-E compliant. I dont think any motherboard can space the cards properly with 4 cards. Quote Maybe because for the price of just the processor/MB you posted I can get an AMD sempron, a full size ATX MB, 2GB ram AND a PSU? Which one? I couldnt find one readily available and that could fit 4 cards, riser or not. Title: Re: Why does everyone use AMD when using 2+ cards? Post by: airdata on July 05, 2011, 12:05:57 AM It's a cost thing unless you go with a used 775 set up.
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