Author Topic: ptm 7950 ordered.  (Read 3303 times)

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Offline tp4tissue

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ptm 7950 ordered.
« on: Fri, 08 September 2023, 09:05:46 »
Results in 2 days. /Xcite

If it's as good as they say,

"durability claim, lasts 10 years"
"anti-pump-out (no performance degradation)"
"liquid metal equivalent performance"

Then it would've been worth it. Really expensive though, 80x80mm for $25 (3x3 inch)


Purchased from amazon, it's $8 more than ebuy7 (shady site), figured, if the seller is confident enough to sell on amazon given its return policy, they're probably selling legit ptm no?



Offline Apothecarii

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Re: ptm 7950 ordered.
« Reply #1 on: Tue, 12 September 2023, 10:59:36 »
So how did it go?

Unless Amazon is the seller, you have to abide by the 3rd party's own return policy I think?

Offline tp4tissue

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Re: ptm 7950 ordered.
« Reply #2 on: Wed, 13 September 2023, 11:30:13 »
Doing it now.

Running the furmark "before" run, 10 minutes so far, will run 15. Seems to be stabilizing at 58C

Offline tp4tissue

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Re: ptm 7950 ordered.
« Reply #3 on: Wed, 13 September 2023, 12:47:35 »
OK, so "after" phase change hump goes through, it's stabilized at the same temperature as the normal paste tp4 was using.

Liquid metal is only 1-2 celcius better

So it's close yes, but Liquid metal is still the winner.

Tp4 can't test longevity in 1 day, so we'll see how it fairs down the line, 

Thankfully, regular paste's pump out behavior is really obvious on the GPU, so Tp4 should be able to notice it quite easily given some time.


Will bake it for a bit more at a lower fan speed and see if it gets any better.


So the claim is pretty close, it comes down to the longevity now.



Offline Apothecarii

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Re: ptm 7950 ordered.
« Reply #4 on: Fri, 15 September 2023, 10:04:05 »
Eliminating the pump out is what will make it worth it.....hopefully.

My order from Amazon arrived yesterday. I should be making the swap sometime this weekend. I'll post up my results too.

What was your GPU core and hotspot delta?


Offline Apothecarii

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Re: ptm 7950 ordered.
« Reply #6 on: Sat, 16 September 2023, 19:50:40 »
Here are my results with fans locked to 1900rpm on my 6900XT Toxic Air to compare:

Current paste (GELID GC Extreme)
75 core
95 junction
1056mv-1081mv

PTM7950
71 core
88 junction
1075-1112mv

I am very happy with the results. The card is running a bit more voltage due to the cooler temps and is still beating the traditional paste. Loaded up some custom power tables and I am able to push another 60watts through this card because of how much cooler the hot spot is when heavily overclocked.

Offline tp4tissue

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Re: ptm 7950 ordered.
« Reply #7 on: Sun, 17 September 2023, 07:34:41 »
Was that fresh paste from the gelid "before" test? Or a few month application?

Offline Apothecarii

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Re: ptm 7950 ordered.
« Reply #8 on: Mon, 18 September 2023, 14:51:38 »
it was about a year old at that point.

Offline tp4tissue

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Re: ptm 7950 ordered.
« Reply #9 on: Mon, 18 September 2023, 15:16:03 »
Fresh paste shouldn't differ by that much.