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The Radeon RX 7900 XT(X) Owners Thread.

rare said:
Such a shame, it’s such a nice card dimensions wise. Really powerful for such a small card and it feels really nice, all metal. I know some of the AIB cards will offer benefits in terms of noise etc, but this is such a nice form factor…
Click to expand...

Yes and on the XT it works perfectly. The cooler / power does limit the XTX a little though but on the XT it is a superb all rounder, good size, regular 2x8-Pin and under a grand and it absolutely thrashes a 6950XT all day long.
 
This is most displeasing. With the card mounted vertically (as pictured in post #415), here's what it does after playing Quake 2 RTX for a while:
7900xtx_vertical_q2.png

It's throttling at 110°C, and sounding like a berserk vacuum cleaner.

If I tip my case over so the card is horizontal (fans facing up), then it does this:
7900xtx_horizontal_q2.png

Faster, cooler, quieter, as it should be.

This makes the card effectively unusable, which is disappointing as the reference cooler looks well designed, with large fans, unobstructed airflow and plenty of surface area, but the vapour chamber is incapable of handling gravity.
 
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eeii said:
I would RMA that if I were you.
Click to expand...
If I turn my case to a similar orientation (which is not sensible as I am using a O11 Dynamic Evo) my hotspot goes to 110c also. However, any other orientation and my hotspot stays below 90c. So I don't think an RMA will fix it in this instance. I guess something about having the GPU that way causes the high temp.
 
LtMatt said:
If I turn my case to a similar orientation (which is not sensible as I am using a O11 Dynamic Evo) my hotspot goes to 110c also. However, any other orientation and my hotspot stays below 90c. So I don't think an RMA will fix it in this instance. I guess something about having the GPU that way causes the high temp.
Click to expand...
Heat pipes usually only work in limited orientations and vertical for this card isn’t one of those clearly.
 
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Mr Evil said:
This is most displeasing. With the card mounted vertically (as pictured in post #415), here's what it does after playing Quake 2 RTX for a while:
7900xtx_vertical_q2.png

It's throttling at 110°C, and sounding like a berserk vacuum cleaner.

If I tip my case over so the card is horizontal (fans facing up), then it does this:
7900xtx_horizontal_q2.png

Faster, cooler, quieter, as it should be.

This makes the card effectively unusable, which is disappointing as the reference cooler looks well designed, with large fans, unobstructed airflow and plenty of surface area, but the vapour chamber is incapable of handling gravity.
Click to expand...
I have my 7900xtx mounted vertically on A 011D-XL.
Will give it a good run in a bit and see what the hotspot maxes out on HWInfo.
 
LtMatt said:
Mine is fine on the normal orientation or using a riser for a vertical mount, but yeah not like that. I've never seen them in that position before tbf.
Click to expand...
I spotted this just now on reddit
7900 xtx ref.
Orientations tested [avg GPU temp / hotspot temp]:

  1. I/O down (towards desk) - [54.8 / 77.9]
  2. PCIe up (Radeon text upside down) - [56 / 85.8]
  3. I/O up (ports facing ceiling) - [64.1 / 109.7]
  4. PCIe down (Radeon text correct) - [57.3 / 85]
  5. Traditional (fans facing floor) - [55.5 / 88.2]
  6. Inverted (fans facing ceiling) - [55.6 / 87.4]
 
delta0 said:
I spotted this just now on reddit
7900 xtx ref.
Orientations tested [avg GPU temp / hotspot temp]:

  1. I/O down (towards desk) - [54.8 / 77.9]
  2. PCIe up (Radeon text upside down) - [56 / 85.8]
  3. I/O up (ports facing ceiling) - [64.1 / 109.7]
  4. PCIe down (Radeon text correct) - [57.3 / 85]
  5. Traditional (fans facing floor) - [55.5 / 88.2]
  6. Inverted (fans facing ceiling) - [55.6 / 87.4]
Click to expand...
Confirmed then, good find. That backs up my testing.
 
BHS1975 said:
What's the best 3D Mark test to test the 7900xtx for stability as GPU test 2 is to light of a load according to Techspot?
Click to expand...
Which GPU test 2? TimeSpy Extreme GPU test 2 is pretty intensive.

However I find a 3DMark Stress Test (which is 20 consecutive runs) of Firestrike Ultra and Port Royal will usually sniff out any instability in GPU overclocks.
 
eeii said:
I would RMA that if I were you.
Click to expand...
I'll have to see if I can send it back and pay the difference to get one of the custom cards. I would have preferred to keep this one though, as it's smaller and uses less power.

delta0 said:
Heat pipes usually only work in limited orientations and vertical for this card isn’t one of those clearly.
Click to expand...
The wicks that modern heatpipes have in them should allow them to work in any orientation. I'm not going to dig out links now, but I've seen tests showing minimal performance difference even upside down. Vapour chambers aren't pipe-shaped though, so maybe they don't wick as effectively.
 
Mr Evil said:
I'll have to see if I can send it back and pay the difference to get one of the custom cards. I would have preferred to keep this one though, as it's smaller and uses less power.


The wicks that modern heatpipes have in them should allow them to work in any orientation. I'm not going to dig out links now, but I've seen tests showing minimal performance difference even upside down. Vapour chambers aren't pipe-shaped though, so maybe they don't wick as effectively.
Click to expand...
Depends on the wicks. It doesn’t make them work in every orientation.
 
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