mesa 13.0.0: rx 470 actually an rx 480?

[iame6162013]

I'm currently using arch linux, mesa 13.0.0.
I bought an rx 470 4GiB.
I found out that lshw and lspci both show that my 'rx 470' is a "product: Ellesmere [Radeon RX 480] [1002:67DF]".
Is this a mesa/lshw/lspci/other bug or did they actually give me an rx 480?

How do I figure this out?
(If they gave me an RX 480, I'll be sooo happy!!)

[iame6162013]

Incase you want to see the full description:

id:	display
description:	VGA compatible controller
product:	Ellesmere [Radeon RX 480]
vendor:	Advanced Micro Devices, Inc. [AMD/ATI]
physical id:	0
bus info:	pci@0000:01:00.0
version:	cf
width:	64 bits
clock:	33MHz
capabilities:	pm pciexpress msi vga_controller bus_master cap_list rom
configuration:	driver = amdgpu latency = 0
resources:	irq : 43 memory : c0000000-cfffffff memory : d0000000-d01fffff ioport : e000(size=256) memory : dfe00000-dfe3ffff memory : c0000-dffff

[marek]

It's probably a naming issue. Both RX 470 and 480 are Polaris10 (=Ellesmere). 470 has fewer active compute units.

With Mesa:
R600_DEBUG=info glxgears
..
num_good_compute_units = N
..

multiply N by 64. You should get 2048 for 470 and 2304 for 480.

[iame6162013]

You are indeed correct. Which is sad.

Thank you.

[agd5f]

you need to take the pci revision into account. The Linux pci database () which is what lspci uses for the name strings only takes the device id into account. You need the pci revision id to map it to a proper marketing name. E.g., see:

https://cgit.freedesktop.org/mesa/drm/commit/?id=670f1e4fdadc197599cdc61d3104f8c27234765e

[agd5f]

Link to the pci database (http://pci-ids.ucw.cz/)