Mining Performance of Sapphire NITRO+ AMD Radeon RX 470 8GB

8 Aug


We’ve managed to get our hands on an AMD Radeon RX 470 video card and not just any, but the best out there – the 8GB Sapphire NITRO+ AMD Radeon RX 470, so we’ve had to put it to a test to see how good it will perform for mining Ethereum (ETH) and other popular crypto currencies using different mining algorithms. The Sapphire NITRO+ 8GB model of RX 470 is probably the best you can get in terms of mining performance among other RX 470 offerings because it comes with memory clocked at 2000 MHz (8 GHz) or with other words the same memory frequency as the reference design RX 480 GPUs.

This faster video memory makes it interesting especially for mining Ethereum, but there are other good points to that video card as well such as the 8-pin PCI-E power connector, the good cooling solution and the 1260 MHz boost clock of the GPU. The only drawback is that the price of the Sapphire NITRO+ AMD Radeon RX 470 8 GB should pretty much be the same as the price of 8 GB reference design RX 480s. The 4 GB models of RX 470 are apparently equipped with slower memory, so as far as Ethereum mining goes they will perform slower than the 8 GB NITRO+ version, though i other algorithms they may not be much slower.


The hashrate that the Sapphire NITRO+ AMD Radeon RX 470 8GB manages to provide out of the box for mining Ethereum is about 24.5 MHS or almost much what the reference design Radeon RX 480 manages to deliver mining ETH. Again this is because of the 8 GHz video memory used on that model from Sapphire, other RX 470 cards with 4 GB come with 7 GHz or 6.6 GHz video memory and that will for sure result in a slower hashrate for Ethereum. The Sapphire NITRO+ manages to keep just fine the GPU boosted to the maximum 1260 MHz is supports all the time, though for Ethereum mining you can lower that frequency by reducing the power limit below 100% on the Power Target as ETH does not benefit much from the higher GPU frequency and you can reduce the power usage without a hit in performance.

What we did not like much is the default fans profile that try to keep the rotations per minute at a low value maintaining a silent operation of the GPU, but with it working at higher temperature. While mining Ethereum the RX 470 wanted to keep the fans in the 30-ies as percentage or about 1300 RPM and as a result the temperature spikes above 70 degrees Celsius, so manually increasing the cooling temperature curve or setting a fixed higher percentage is a good idea to keep the GPU cooler while mining, especially if you mine coins that use more GPU intensive algorithms unlike the one used by Ethereum that is more memory dependent. Also the default power usage of the Sapphire NITRO+ can definitely use some tweaking as it seems to be slightly higher than that of a reference design RX 480


Overclocking the Sapphire NITRO+ AMD Radeon RX 470 8GB has left us a bit disappointed. We kind of expected to be able to push the 8 GHz video memory to at least 8.8 or 9 GHz like you can on most reference design RX 480. Unfortunately we ended up with up to 8.2 GHz (2050 MHz) maximum limit from AMD’s WattMan and maximum 8.4 GHz with the use of the ASUS GPU Tweak II tool. We are still somewhat short on options for overclocking tools for the new AMD RX series of GPUs, so this forced overclocking limit has left us disappointed. We are not sure if it was forced because the GDDR5 memory chips from Samsung are not capable of working at higher frequencies without problem or as a safety measure so that the RX 470 turns out slower than RX 480 even when overclocked.

The result of the limited video memory clock is important only for Ethereum mining as the result is slower maximum hashrate. At the maximum of 8.4 GHz (2100 MHz) for the video memory we were able to get just about 25.8 MHS mining Ethereum or with other words just about 1.3 MHS more than the stock clocks hashrate. We are yet to see how the 4 GB models of the RX 470 will perform with Ethereum due to their lower default video memory clocks as well as how much it will be possible to overclock them.


When the AMD Radeon RX 480 was released there was an issue with the drivers that prevented users from successfully mining many of the crypto currencies that used sgminer as the miner just crashed with an error. Since the RX 480 was actually a new architecture there was no way to just get back to older video drivers and have no trouble running sgminer, however it seems that the situation has improved significantly since then, though it is still not perfect for some algorithms and miners. Since at that time most people were using RX 480 for Ethereum mining where no problems with the miners were present that was not much of an issue, but due to various reasons a lot of people have since moved to other alternative coins. Above you can see the hashrates for many of the more popular algorithms supported by Nicehash and tested with their dedicated mining solution that bundles multiple miner programs in a single package.

You can see some benchmarks of the AMD Radeon RX 480 using the NiceHash miner here and note that quite a few of the algorithms back then reported 0 MHS hashrate. At the moment it seems that only Neoscrypt, WhirlpoolX and Blake256r14 are still problematic and are reporting 0 MHS hashrate. That is of course only for the listed algorithms supported by NiceHash and there are quite a few others as well. It is important to note that the Sapphire Nitro+ RX 470 8GB is getting pretty close in terms of performance to a stock RX 480 with 8 GB and in some cases the results are even slightly better (due to further optimizations) and in the others the performance is not behind by much. Still the presence of a little more Stream Processors in the RX 480 gives it an advantage in the more GPU intensive algorithms compared to the RX 470. Unfortunately the GPU frequency of the RX 470 cannot be pushed much higher like on the RX 480, so hoping to compensate the difference with higher OC will just not do.

Just to add information about some more algorithms, the LBRY sgminer crashes the video driver, so we could not get a result in terms of hashrate. As for the SiaCoin sgminer, it has managed to provide us with 906 MHS hashrate mining on the Siamining pool using Stratum, so there were no problems with that miner. Hopefully the issues with some miners and some algorithms not working with the new AMD RX series of GPUs will be resolved as AMD is probably already preparing the faster RX 490 for a release alter this year and it is highly likely it being an interesting solution for crypto miners as well.

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21 Responses to Mining Performance of Sapphire NITRO+ AMD Radeon RX 470 8GB


August 8th, 2016 at 23:17

What’s the power consumption like? Thanks.


August 9th, 2016 at 04:58

Where to get the benchmark software? It seems useful very much. Thanks admin.


August 9th, 2016 at 11:19


August 9th, 2016 at 11:41

Do note that the RX470 uses the older GDDR5 memory vs the RX480’s HBM memory on chip.

This explains both the lack of OC potential and the higher power usage as DDR memory consumes a lot of power at higher clocks.

GDDR5 however has been proven to work reliably over years of mining whilst the newer HBM is somewhat experimental.

The 2 missing VRMs could also lead to more power usage as the other 4 are being taxed more, but I may be wrong here.


August 9th, 2016 at 13:20

@Anonymouse What are you talking about? Neither the RX 470 or 480 use HBM. Pretty sure the VRM comment is nonsense too.


August 9th, 2016 at 14:10

rx470 and rx480 dont work in LBRY with windows 10 x64 .

Pls fix .


August 9th, 2016 at 14:33

And bcn mining With claymore or minergate, what hashrate will i get?


August 9th, 2016 at 15:49

Whats abaut the power consumption?


August 9th, 2016 at 17:24

Neither of the RX series cards so far – RX 460, RX 470 or RX 480 does use HBM, they all use regular GDDR5 video memory.

Th drivers for the new RX series of video cards still have some issues with some miners, so they are crashing and you are unable to mine some crypto coins using problematic algorithms, so you should be aware of that if purchasing an AMD RX GPU for mining something other than Ethereum (ETH).

The power usage of the Sapphire is apparently higher because of the high operating voltage of the GPU, it can easily hit 150W TDP.


August 9th, 2016 at 18:30

Mining Performance for RX 460?


August 9th, 2016 at 18:41

I thought TDP was 120w for the 470? Has anyone measured the power consumption to validate the 470 power use?


August 9th, 2016 at 19:16

Are they getting paid to shill higher cost cards? I’m getting my 470 today, and I’ll be posting something on it.


August 9th, 2016 at 23:55

@Enverex – correct – I apologize, I was under the impression the 480 would use HBM like the R9 fury. I just saw one without the cooler and was thinking ‘what’s with the memory chips’ when it hit me. as for my other comment – I stand by that, find a card that has a bunch of sensors and you’ll see that a few degrees more on the VRM’s can lead to power/heat growing exponentially.


August 10th, 2016 at 05:14

Why you don’t post Dual mining stats?


August 10th, 2016 at 13:30

The TDP on the Sapphire Nitro+ RX 470 8GB is higher at 150W. The card operates at higher voltage for the GPU, probably with the idea for users to be able to overclock the GPU more without the need to increase the voltage further… While mining Ethereum the video card manages to fit below the 150W TDP (about 130W), however with more GPU intensive coins such as SIA for example the Sapphire easily hits the 150W TDP and the GPU starts to drop the boost frequency.

We don’t post dual mining results as the GPU of the RX 470 is not very powerful and we’d not recommend for it to be used for Dual Mining.


August 10th, 2016 at 17:35

Dual mining Saphire RX 470 8GB – 24,7 Mhs ether & 370 Mh/s decred. The same results with nicehash as in the article. Crimson 16.7.3 installed. Claymore 5.0 beta compilation.


August 13th, 2016 at 05:14

just suggestion, why you never add watt kill meter?
i want to know more about “real power consumption..
anyway where the donate buttone? :)


August 15th, 2016 at 08:14

wtf, just bought rx 470 8gb my hashrate is 21MH/s


August 20th, 2016 at 11:01

with Ubuntu

I have tested diffrence BIOS Version:

1. the Normal Standard BIOS
24 mhs / 200 Watt (whole System)

2. the OC Standard BIOS
24 mhs / 240 Watt (whole System)

3. Change Values with the Polaris Editor
24 mhs / 190 Watt (whole System)

What values ​​do I need to change so that I reduce the power and the increasing MHS??

thx lg Martin


August 21st, 2016 at 22:33



ASRock H61Pro BTC Mainboard LGA 1155
Intel Celeron G1610, 2x 2,6GHz
Super Flower Leadex 80 Plus Platinum 8Pack Edt. Netzteil – 2000 Watt
Ubuntu 1604
Claymore’s Dual Ethereum AMD+NVIDIA GPU Miner v6.2

I measure the power consumption with a calibrated electricity meter

idel Modus Windows 70 watt , Ubuntu 63 Watt

Test 1. Normal Standard BIOS
24 mhs / 200 Watt (Ganzes System)…s/Standard.JPG

Test 2. OC Standard BIOS
24 mhs / 240 Watt (Ganzes System)…enshots/OC.JPG

Test 3. verschiedene Werte mit Polaris Editor geändert
24 mhs / 190 Watt (Ganzes System)…hots/Test1.JPG

Test 4:
27 mhs / 200 Watt (total System) – Change Timing from 1750 -> 2000

Test 5:
27 mhs / 195 Watt (total System) – Change to 850 mV

Test 6:
27 mhs / 195 Watt (total System) – Change to 800 mV

Test 7:
24 mhs / 190 Watt (total System)

Test 8:
27 mhs / 195 Watt (total System)

Test 9:
24-27 mhs / 190 Watt – Instabil MHS Rate (total System)

Test 10:
26 mhs / 200 Watt (total System)

Test 11:
20-28 mhs / 195 Watt(total System) – Instabil MHS Rate (total System)

Test 12:
20-25 mhs / 190 Watt (total System)- Instabil MHS Rate(total System)

Test 13:
20-28 mhs / 190 Watt(total System) – Instabil MHS Rate(total System)

Test 14:
20-28 mhs / 190 Watt(total System) – Instabil MHS Rate(total System)

Test 15:
20-28 mhs / 195 Watt (total System)- Instabil MHS Rate(total System)

Test 16:
24-28 mhs / 195 Watt (total System)- Instabil MHS Rate(total System)

Test 17:
27,8 mhs / 195 WatT (total System)- almost stable

Test 18
16 mhs / 174 Watt (total System)- TIming von 1650

Test 19
27.6 mhs / 192 Watt(total System) stable


September 2nd, 2016 at 19:27

I tried the GPU Tweak tool referenced here and it does not appear to allow me to change the gpu clock or memory. In the article you stated you were able to tweak the memory with the Asus GPU Tweak. Can you share how you did that? When trying to apply the new settings it just flips right back to the defaults. I get the same behavior in the Sapphire Trixx app.

So far it appears that a bios hack is the only way to improve the performance profile of these cards.

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