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Fernandobnu
Bronze

DELL Inspirion 5675 - Radeon RX 570 or RX 470?

Hello Dell,

I recently bought an DELL Insprion 5675 with AMD Ryzen 7 1700x and Radeon RX 570, but checking AIDA 64 and GPU-Z, I found that the RX 570 is, in fact, an RX 470. I explain:

RX 570 - realese date Apr 18th, 2017
https://www.techpowerup.com/gpudb/2939/radeon-rx-570
GPU Clock: 1168 MHz 
Boost Clock: 1244 MHz
Memory Clock: 1750 MHz 
7000 MHz effective
Pixel Rate: 39.81 GPixel/s
Texture Rate: 159.2 GTexel/s
Bandwidth: 224.0 GB/s

RX 470 - realese date Aug 4th, 2016
https://www.techpowerup.com/gpudb/2861/radeon-rx-470
GPU Clock: 926 MHz
Boost Clock: 1206 MHz
Memory Clock: 1650 MHz 
6600 MHz effective
Pixel Rate: 38.59 GPixel/s
Texture Rate: 154.4 GTexel/s
Bandwidth: 211.2 GB/s

Now look to the GPU-Z results of RX 570 that comes with Dell 5675:

Boost Clock: 1206 MHz = RX470
Memory Clock: 1650 MHz = RX470
Pixel Rate: 38.59 GPixel/s = RX 470
Texture Rate: 154.4 GTexel/s = RX 470 
Bandwidth: 211.2 GB/s = RX 470

Realese Date: Aug 4th, 2016 = RX470

Now look the Gpu-z of an ASUS RX 570:


Does DELL really think it's a RX 570? 
RX 570 of DELL was released at 2016 year, but the true RX570 was released only this year.

I bought this cpu waiting to receive true hardware, not an RX470 with the name modificated to RX570.

What will be the politic of DELL on this case? Will DELL send me the true RX570?

Greetings from Brazil!
Fernando

 

13 Replies

RE: DELL Insprion 5675 - Radeon RX 570 or RX 470?

They are both RX 570.  Different makers set clock speeds and voltages to different settings.  Some may under clock.  Some may over clock depending on power requirements and the cooling systems they use.

If you installed the 2 cards you show results for in the same system you would see almost no difference in game play.  Maybe a frame or 2.  I am guessing the reason the Dell card is set the way it is is to keep it cooler and more stable.

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Fernandobnu
Bronze

RE: DELL Insprion 5675 - Radeon RX 570 or RX 470?

It's not only memory clocks that are equal to RX470, but the release date, pixel rate, texture rate and bandwidth too. Weird, don't you think?

New pics from AIDA. AIDA identifies the GPU as an RX470 or RX570, depending of what you select on Display:

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RE: DELL Insprion 5675 - Radeon RX 570 or RX 470?

There is same problem here.

All indicates there is a RX470 with a replacement of bios to change the name of the GPU to RX570.

That was riddiculous, instead, Dell support on Facebook ask for wait 7 days to analise the case.

Add this to the fact that the motherboard doesn't work at 16x PCI-E, and we have a minimal of 15% loss performance compared what the Inspirion 5675 suppost to be.

I really want to know, what Dell will do to fix it.

Mafiotecano
Copper

RE: DELL Insprion 5675 - Radeon RX 570 or RX 470?

I'm also impacted by this "mistake" from Dell.

I bought the same Inspiron 5675 version of @Fernandobnu, and I can confirm the same symptoms. The VGA is presented as a RX570, but everything points to be a RX470 with BIOS mod, to deceive the customers.

Here in Brazil, we pay a very high price for hardware parts, the minimum what we expect is get exactly what we bought.

Could anyone from Dell explain what is happening here?

LostSavage
Bronze

RE: DELL Inspirion 5675 - Radeon RX 570 or RX 470?

The AMD RX 470, 480, 570 and 580 all use the same graphics chip.  The only differences are how many compute units are enabled, core clock speeds, memory speeds and memory amounts.  AMD does not define minimum speeds so slapping a 500 series name on an older design is 100% fine. The best thing you can do is download a copy of MSI Afterburner and overclock your core and memory speeds to match what they should have been (no guarantees on stability).

As for the dual 8x PCIe slots it is noted in the AMD x370 specs.

www.amd.com/.../am4

The part I do fault Dell is this should have all been clearly shown in the system specs.

If you need one more thing to be mad about your processor might be defective.

en.community.dell.com/.../20025483

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RE: DELL Inspirion 5675 - Radeon RX 570 or RX 470?

X370 works on 1x16/2x8 (AMD Ryzen™). So, they have to work in 16x speed (like the specification that Dell sell us in the marketplace), this is not a trouble at all, an update bios can solve.

RX5xx séries use to be Polaris 20, not Ellesmere. They're selling us this:

gaming.radeon.com/.../

Instead that

gaming.radeon.com/.../

Seems to be a little diference, but we don't pay for RX470. On techpowerup review, the diference between the cards reach 15% in some cases.

skubaturbo
Copper

RE: DELL Inspirion 5675 - Radeon RX 570 or RX 470?

same "issues" here. Is there ANY part of this computer that hasn't "unadvertised downgrades" or blocked functions? Smiley Indifferent

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LostSavage
Bronze

RE: DELL Inspirion 5675 - Radeon RX 570 or RX 470?

Polaris 10, Polaris 20 and Ellesmere are all the same chip.

en.wikipedia.org/.../Graphics_Core_Next

The X370 chipset can be wired 1x16 or 2x8.  To support both at the same time would require an additional logic chip that I don't think Dell included.  The problem is x16 can mean both physical support or transfer rate.  The computer does have physical support for two x16 cards.

Also I wouldn't expect a BIOS update to add support for the Ryzen 2 processors coming out Q1 2018.

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krking111
Bronze

RE: DELL Inspirion 5675 - Radeon RX 570 or RX 470?

I have the same issue with my Inspiron 5675 which included the RX580. It seems the specs are the same as the RX480. Also, in 3DMark, it tested as about 15% slower than most other RX580's and is identified as an RX 480 in some screens. Looks like they went as cheap as possible to ensure I never purchase a Dell again.

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