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AMD to Ditch CrossFire, New Multi-GPU Technology Possible

Maciej Borkowski

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The way that multiple GPUs was handled was either SLI from NVidia or CrossFire from AMD. Now, we see that this could possibly change. Apparently, DirectX 12 handles multi GPU setups differently, thus all DX12 games will not be using CrossFire. For example, new AMD drivers have enabled gamers to use multiple Radeon RX Vega cards inside gaming PCs. This shows that CrossFire isn’t really necessary. An AMD rep said:

CrossFire isn’t mentioned because it technically refers to DX11 applications. In DirectX 12, we reference multi-GPU as applications must support mGPU, whereas AMD has to create the profiles for DX11. We’ve accordingly moved away from using the CrossFire tag for multi-GPU gaming.

CrossFire Out, In-game mGPU Support In

While the situation might seem weird for gamers, it’s only for the best. DX12 handles mGPU stuff differently than it’s predecessors. DX12 makes in-game support of multiple GPUs a requirement for the game development team. This could make mGPU setups more versatile than they were before. It means better quality and performance, although at a greater cost for the developers. Historically, DX9, DX10 and DX11 games relied more heavily on AMD and NVIDIA to offer their respective CrossFire and SLI profiles in GPU drivers.

Crossfire

CrossFire Not Necessarily Dead For Good

AMD is going to abandon the CrossFire branding, but not support for DX11 games. Gamers can sleep without worry, since this won’t suddenly mean that they’ll have to ditch their multi GPU setups if they intend to play mostly older game titles. AMD Radeon RX Vega cards are expected to surface in October, and here is where we will see the new mGPU tech truly shine.

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43.5 MH/s

AMD RX VEGA 56 Mining Review

GPUgpuDude

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vega rx 56

The biggest quest for Ethereum miners is undoubtedly the search for a great GPU for their mining rig. There are a lot of options to choose from, and the sad fact that the GPU that comes in most computers by default just won’t do.

MINING SPECS

ETH Hashpower:

  • Power: 306 Watt
  • Hash Rate: 32.4 MH/s

ETH Hashpower (Vega 64 Flash Mod)

*Not confirmed, not tested only theory.

ETH Hashpower (modded in Bios, Blockchain Drivers)

*Claymore tested, by us, with more than 3 cards

  • Power: 160 Watt
  • Hash Rate: 38 MH/s

ETH Hashpower (dual mining NiceHash)

*Claymore tested, by us, with more than 3 cards

  • Power: 160 Watt
  • Hash Rate: 32 MH/s

ZEC Hashpower (modded in Bios, Blockchain Drivers)

*Claymore tested, by us, with more than 3 cards

  • Power: 140 Watt
  • Hash Rate: 420 Sol/s

Our Test on AMD RX VEGA 56 (testing from Sep 13, 2017)

DriversGPUMemoryPower Lim.Power C.SoftwarePoolGPU temp (C)MH/sRPMNote
Blockchain Drivers
(09/18/17)
1102 MHz950 Mhz-15%130WClaymoreEthermine74-7838400-4900unstable
Original AMD (17.9.1)Default800 Mhz0200WClaymoreEthermine74-7832400-4900unstable
Blockchain Drivers (09/18/17)902 MHz900 MHz-10%166WNiceHashNiceHash60312000-4900Stable

Vega 56 Blockchain drivers settings

*Amd Rx Vega 56 tested on 09/18/17  590 W power draw (90W system), 3 Vega 56 cards reported: 6.11 $/day with Nicehash (ETH & Library) BTC price $3950 ETH price $290.

Claymore AMD VEGA 56 ETH Mining at 38MH/s stable, same settings. (Update: 09/19/17)

Vega 56 proof 38MH/s

vega 56 claymore speed proof

 

SAPPHIRE VEGA RXAMD has started to acknowledge Ethereum miners with its latest line of Vega GPUs.

One of the most well documents problems with AMD’s Radeon Rx Vega 64 is the supply issue. Regardless. it is hardly the only AMD card available, amd a less powerful card was announced that gave users hope for access to a new GPU. The Radeon RX Vega 56 was sold out almost as soon as it hit the shelves.

Amazon had been selling the XFX and the Sapphire Vega 56 although they were quickly sold out. Gamers desperate for a new GPU and others hoping to deplete the supply and sell for a higher price after create the demand made this happen. Both the XFX and the Vega 56 sold at $399.99. The cards also went out of stock on Newegg and Ebay.

Best Buy had the XFX Vega 56 listed at $499,99, which is $100 over the MSRP. It is sold out there, as well.
AMD said that it is working hard to meet the supply demand for these two cards, just as the company said it was doing with the Vega 64. AMD said that it is working with its supply partners to get more of the cards stocked as quickly as they can.

BUY on AMAZON from $649 to $681

 

Buy on NEWEGG.COM for ($579.00)

 

The Vega 56 looks to be quite promising for gamers, and benchmark tests implied that it would be a viable alternative to the Nvidia GeForce GTX 1070. The card is also being looked upon with hope from Ethereum miners, and AMD has released new drivers intended specifically for mining. These drivers will amp up the performance of Vega10 GPUs. The Vega 56 shows a consistent 36.48 MH/s when the memory was clocked to 1900MHz.

Pros and Cons

38.48 MH/s isn’t very high, but it is still the best for 130W of consumption. The memory clock speed is promising, especially when overclocked. However, this GPU isn’t perfect and using a fan or air conditioner will help to keep it cool. Remember that the fan isn’t a one stop solution to the health of your GPU. Regardless the cooling system it uses, operating in a cooled room will be healthier for your GPU than in a hot one.

Final Thoughts on The AMD RX VEGA 56

It may be hard to get your hands on the RX Vega 56, but if you do, would you really want it? There are better cards to get your hands on for around the same price tag, and it seems that AMD has been striking out a little bit with their cards and the use for mining. However, it is nice to see that AMD is looking out for miners with mining specific drivers. As an entry level mining GPU, the RX Vega 56 could work decently enough to get your feet wet in the mining industry.

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46 MH/s

Radeon R9 295X2 Mining Review

Ali Raza

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The Radeon R9 295X2 is one of the top graphics cards for Ethereum mining. This GPU has an output of 50MH and on benchmarking tests has beaten the Nvidia GTX Titan in almost every area.

Mining Specs

Ethereum Hash Rate:

  • Power Consumption: 500W
  • Hash Rate: 46.0 MH/s

Ethereum Hash Rate (modded):

  • Power Consumption: NO Proof
  • Hash Rate: NO Proof

BUY NOW on AMAZON

The Radeon R9 295X2 keeps the internal temperatures low, even when processing 4K videos over extended periods of time. However, this is a quite expensive GPU and it does need a somewhat heavy supply of power.

AMD’s Radeon R9 295X2 is a high end multicore graphics processor that is capable of handling anything you could throw at it. The price tag is heavy, at around $1,500, largely due to the fact that his GPU is the result of the breeding of two of the fastest GPUs of our time. It has a liquid cooling system with dual fans, and is arguably one of the fastest GPUs AMD has put on the market.

It can be hard to sell multi-core GPUs for the companies that make them. Most gaming PCs have at least two slots that let multple GPUs be installed. While dual core GPUs will save a slot, the also center all of the heat onto that one slot. For this reason, multicore GPUs typically need to have great cooling systems, which, fortunately, AMDs Radeon R9 295X2 provides.

The R9 295X2 fixes many of the problems its predecessors struggled with, namely heat and noise. Forgoing the traditional radiator block coupled with a fan, this GPU features a liquid cooling system from Asetek, and each GPU has its own cooling block. A central fan pushes air over both cores, however the majority of the cooling comes from the coolant that is pumped into the radiator block. This block is designed for a top mounted fan.

Overall, this leads to a much quieter and much cooler running system.
According to AMD, the R9 295X2 doesn’t need more than 45 amps on its first 12 volt rail and 28 amps on the second. This can cause issues however, even with a high end power supply. Having a PSU that can pump out 1,200 watts doesn’t mean that a single rail can handle that load.

This card will cost an Ethereum miner around $1.44 a day to run, making it one of the most expensive cards on the market in terms of mining costs. The return, however, is around $2.23 a day, with a profit ratio of around 154%. Despite being a rather expensive card, this GPU will mine enough Ethereum to pay for itself in less than a year, around 269 days.

R9 295X2

Pros and Cons

First, let’s start with the pros. This card will rake in more per day than most of the other cards on the market. Despite its price, its profit ratio makes it easy to get a return on your investment rather quickly. It is a fast, powerful GPU that has a great cooling system.

However, this power does come at a cost, and this is one of the more expensive GPUs to use in your mining rig. Not only is the initial investment a bit heavy for a beginning mining operation, but the cost in power consumption is quite steep, as well.

Final Thoughts on The Radeon R9 295X2

I must say, despite the impressive cooling system, you owe it to your mining operation to take care of your rigs. Just because your GPU has an amazing cooling system, doesn’t mean you should run it into the ground in the hottest room you can find. Use fans and air condition to keep your mining area cool and you will get a lot more life out of your GPU. The GPU will then be able to focus more on its calculations and less on keeping itself from overheating.

The Radeon R9 295X2 may not be perfect for a new mining operation, but it definitely has profit potential.

Buy on Amazon from 900.00$ to 1200.00$

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28.2 MH/s

Radeon R9 290X Mining Review

Ali Raza

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When you are looking for a great Ethereum mining set up, it is very important that you put a lot of consideration into your GPU. Not all GPUs are created equal, and each has their own benefits and disadvantages.

For the most part, the GPU that comes with computers bought as Walmart will not suffice, unless you buy a computer specifically designed for gaming. These gaming computers have more powerful GPUs.

Let’s look at one potential GPU to use for mining Ethereum, the Radeon R9 290X from AMD.

r9 gpu reviewEthereum Hashing Rate:

  • Power
: 290 W
  • Hash Rate
: 22.0 MH/s

Ethereum Hashing Rate (modded)

  • Power: 195 W
  • Hash Rate: 28.2 MH/s

Source: EtherMining Reddit (Sep 11 2017)

Ethereum Solo Mining (Nanopool)

  • Power: 107 W
  • Hash rate: 29.5 Mh/s

Source: Youtube

The SAPPHIRE R9 290X uses modern Graphics Core Next architecture from AMD and has 2816 stream processing and an engine clock that goes up to 1040Mhz. It has 4GB of GDDR5 memory that guarantees high performance. The memory sits a 512 bit interface that offers higher memory bandwidth than its predecessor. The current price on Amazon is $373.32

PRICE HISTORY

AMD built the Radeon R9 290X on the Hawaii GPU, which was the company’s first high end GPU to be released in almost 2 years. The Radeon R9 290X uses more than 6 billion transistors, and is built on 28 nanometer process. It has more than 2000 shaders and 64 ROPs.
The Sapphire R9 290x Tri-X OC is one of the most popular R9 290X GPUs. It has increased clock speed and memory speed.

R9 290X

The R9 290X Tri-X OC goes for around $700, and has quite an impressive look to it. It has three fans that help to keep the system cool. Because of these three fans, however, it may not fit into smaller cases. The card is 31 by 12 cm, for those who are interested in knowing.
This card will take up two slots in your system. This may or may not be a sacrifice you are willing to make, for a dedicated mining rig, it is a worthy sacrifice. It also comes with two DVI ports, a DisplayPort, and an HDMI port. This is great for games who want to get some triple monitor gaming.

There are no CrossFire connectors on the card, although with AMD’s R9 290 series they started using PCI express slots to transfer CrossFire data. This card may also be paired with any R9 290 and R9 290X card.

Pros and Cons

The price is a bit steep for this card, and the card will need around 430 days to pay for itself. It costs around $0.83 a day to run this card for Ethereum mining, with around $0.92 daily return. This provides an annual return of 84% at a 111% profit ratio. It comes with a lot of unneccesary ports for Ethereum mining.

Final Thoughts on The Radeon R9 290X

The Radeon R9 290X may not be priced as an entry level mining GPU, however it does offer many benefits to miners who can afford it. Several of these GPUs can make for a great mining set up that can greatly increase your mining revenue if done right. A cool room with fans and/or air conditioning will help take the strain off of the CPU and let it have more resources to do its job without forcing it to focus on maintaining a proper operating temperature.

Watch on Amazon: Today from $375 to $490

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