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Dasa

Radeon VII (VEGA 20)

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Posted (edited)

No heat pipes as the Heatsink has a vapor chamber over the core. That is just the edges of the HBM and the core seem to be a little higher than the center.
Apparently there is a epoxy resin coating over the lot that is supposed to make it flat and protect the chips.

radeon-vii-teardown-2.jpg

AMD_Radeon_VII_Vega20_GPU-54366d75a0a42a

 

Edit:

I clicked post via startrack by mistake when ordering instead of express post so I paid $4 extra for something that will take a day longer as they dropped it in to the post office today to travel the last half the journey.
But it could be worse as in the past they have just left items sitting in there local depot 100k away for over a week.

Edited by Dasa

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New card is installed here is a quick run at stock

20 844 with AMD Radeon VII(1x) and Intel Core i7-6700K Processor
Graphics Score 28 464

http://www.3dmark.com/fs/18620818

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Noted the "Graphics driver is not approved", that the new driver released?

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Posted (edited)

Yes the they have rushed out a few small fixes since the release driver this is 19.3.1 which was released yesterday.

 

Timespy

8231 with AMD Radeon VII(1x) and Intel Core i7-6700K Processor

Graphics Score 8886

http://www.3dmark.com/spy/6500306

Short test so GPU temp only hit 65c and 97c junction with fans topping out at 3000RPM at which they do make a bit of noise.

 

22-40% faster at stock than my 1070 on water with a powertune vmod and unstable.

https://www.3dmark.com/compare/spy/6500306/spy/5308339

 

Safe to say it is a snug fit

radeon%20vii.jpg

Edited by Dasa
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Posted (edited)
47 minutes ago, SceptreCore said:

Are those scores good? i don't benchmark anymore.

Gambles best GPU scores in firestrike

1080Ti 29,124
2080 27,563

Founder 2080 ti at stock
~35,000

 

My Radeon VII

Stock 28,464
Undervolted from 1136mv to 1001mv 28,623
Best score so far 31,715
at
2005 core (Stock 1800) <cant get it to run 2010+ even with extra v.
1126mv (Stock 1136mv)
+20 Power
1200 mem  (Stock 1000) 1200 is the max setting allowed

100% fan
J max 97c
Ambient ~25c

 

I see someone has hit 35K with a Radeon VII using stock HSF lapped with a custom BIOS.

Edited by Dasa
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12 hours ago, SceptreCore said:

You've forgotten the most important thing Dasa

Which is?

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Im gonna guess putting it under water?  

But man I can't believe you got that in there after seeing the pic!   

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Unfortunately the local metal work shop only has a plasma cutter which would warp the 2mm steel needed for a new mount plate and the closest laser cutter needed for making a new plate is 100k away and it will probably cost over half as much as the block itself just to draw it up on on the PC ready to be made.

So I have run into a bit of a delay.

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Posted (edited)

A bit of data somebody put together from others results.

 

Quote

Average stock voltage: 1084 mV
Median stock voltage: 1080 mV
Lowest stock voltage: 1018 mV (66 mV below avg.)
Highest stock voltage: 1149 mV (65 mV above avg.)

Average undervoltage (for those who undervolted at least 1 mV): 91 mV

 

So it looks like they test what is a stable V then add almost 100mV more just to be sure.

 

Edit: Some tests with the Radeon VII under a full cover block.

 

attachment.php?attachmentid=259692&d=155

Edited by Dasa

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