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AMD RX 7000 series GPU Owners' Club

GTA V is CPU bound across all resolutions. At 1080p it's completely bottlenecked, even with MSAA at 8x. At 1440p it's 20% bottlenecked with MSAA maxed out. Even at 4K it's still CPU bottlenecked until you enable MSAA. BTW, the 7900XTX cannot maintain stable 60fps with MSAA 8x at this resolution.

Efficiency figures look amazing though for 4K60 with max settings and no AA:

4k.jpg
4k60.jpg


159 W lower power draw vs. uncapped, for 52% smaller consumption. GPU temps down by 9 and 17 C. The CPU uses 21% less power on average. And the occasional stutters to which the game is prone without an fps limit are no more.

EDIT 1:
Ran the benchmark maxed out w/o AA in 8K for lolz and got 59, 50, 57, 66 and 55 fps. These numbers are about the same as 4K with max AA. Not what I'd call "high refresh 8K gaming", despite AMD's initial pretences :laugh:

EDIT 2:
Just discovered that GTA V is hard capped at 188 fps. That would partly explain the CPU bottleneck in lower resolutions.
 
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Well my 7900XT arrived today and boy am I glad I got it. For anyone that wants to know the Pulse and Nitro cards from Sapphire are both compatible with Alphacool's Nitro waterblock. That is for whatever variant between XT and XTX the only thing will be a backplate screw position missing as there is no ARGB so the screw position is not there. In terms of performance, I have not done anything really but I will be seeing what this card can do over the course of the week. I have to admit that I cannot really feel a difference between this card and the XTX. The GPU maxes out at 45 C in Gaming and the hotspot is 58 C. My memory runs hot but that might be the extra pads I placed where the memory is missing. That will be this weekend though as I will be enjoying Gaming on this beast.
 
kapone32 said:
Well my 7900XT arrived today and boy am I glad I got it. For anyone that wants to know the Pulse and Nitro cards from Sapphire are both compatible with Alphacool's Nitro waterblock. That is for whatever variant between XT and XTX the only thing will be a backplate screw position missing as there is no ARGB so the screw position is not there. In terms of performance, I have not done anything really but I will be seeing what this card can do over the course of the week. I have to admit that I cannot really feel a difference between this card and the XTX. The GPU maxes out at 45 C in Gaming and the hotspot is 58 C. My memory runs hot but that might be the extra pads I placed where the memory is missing. That will be this weekend though as I will be enjoying Gaming on this beast.
Click to expand...

If the AIB coolers with their baseplates and thermal padded backplates can't tame VRAM temps, I doubt water can either. Just looking like an inevitable fact of life for 20Gbps GDDR6.

The more I think about it, Navi31 itself runs remarkably cool, however. Even the MBA compares favourably to some much bigger coolers from last gen cards. At similar size with a very similar cooler at the same power, the 6900XT reference ran what, 15C hotter edge and 20C+ hotspot?
 
tabascosauz said:
If the AIB coolers with their baseplates and thermal padded backplates can't tame VRAM temps, I doubt water can either. Just looking like an inevitable fact of life for 20Gbps GDDR6.

The more I think about it, Navi31 itself runs remarkably cool, however. Even the MBA compares favourably to some much bigger coolers from last gen cards. At similar size with a very similar cooler at the same power, the 6900XT reference ran what, 15C hotter edge and 20C+ hotspot?
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I will see when I remove the pads. It would seem the redesign has tamed the card though I played an hour of TWWH3 including a 2x20 vs 3x20 Siege and Campaign battle and that 45 C is nice to watch at 315W average. I agree with you but my AIB card was also a higher clocked card than the MBA but the Wattage is higher by default as well. As an example I bought a 6800XT Reference card when my Nitro card blew up (EK) and that card has a max boost of 2500 while my Nitro would happily do 2700+ MHZ and 255W vs 288W on the Nitro.
 
I just started to wonder. Is 30 degrees delta between edge and hotspot something to worry about? Like I wrote before I have Gaming OC model from Gigabyte and running it at 400W. Hotspot reaches 85-87, but the edge is 57-60. It's not throttling and theoretically in spec, but I'm just wondering about the difference between the two.

EDIT

Also was wondering about mounting it vertically with Cooler Master kit (PCIE 4.0), just for the looks, but question is will it worsen the performance of cooling, it has a vapor chamber. I have NZXT H7 Flow so plenty of space between the glass and the GPU, also have 3 fans in the front and 360 AIO up top and one fan for exhaust.
 
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If you install it vertically it might go down by about 2 degrees. As for the hotspot that is totally in line with other cards. The problem is we don't know what the hot spot temp is reporting. Is it the VRM, Memory or something else. As long as your card is not throttling you will be fine.
 
kapone32 said:
The problem is we don't know what the hot spot temp is reporting. Is it the VRM, Memory or something else.
Click to expand...
Hotspot temp is always the center of the GPU chip. VRM, memory have their own separate reading.
 
3x0 said:
Hotspot temp is always the center of the GPU chip. VRM, memory have their own separate reading.
Click to expand...
If my chip is reporting 45C how can the hotspot on the chip be 30 degrees hotter if it is in the middle as 71 with the same liquid across the entire chip? Where is the technical paper stating that the I/O die is the source of the hot spot as that is what sits in the center of a 7000 series GPU chip? Where was it on Vega or RDNA2? I am well aware that in HWinfo64 they have all of those readings but I also see 3 different shader clocks in AMD software it is only GPU and Hotspot.
 
kapone32 said:
If my chip is reporting 45C how can the hotspot on the chip be 30 degrees hotter if it is in the middle as 71 with the same liquid across the entire chip? Where is the technical paper stating that the I/O die is the source of the hot spot as that is what sits in the center of a 7000 series GPU chip? Where was it on Vega or RDNA2? I am well aware that in HWinfo64 they have all of those readings but I also see 3 different shader clocks in AMD software it is only GPU and Hotspot.
Click to expand...

Radeon Software also doesn't monitor VRAM temps, or any voltage on any rail (core, soc, 2 x mem, etc). HWInfo isn't always right but like Ryzen Master, Radeon Software is sorely lacking for monitoring.

If you've ever watched any Gamersnexus CPU cooler review and their cooler pressure mapping imaging, quality control sucks and the same contact issues apply to GPU coolers. The Navi31 die might be close to flat, but the baseplate on the cooler sure isn't.

The I/O die is not in the center. The GCD is. The 6 MCDs are closer in function to the Ryzen I/O die, and flank the GCD. Each of those dies has its own hotspot reading in HWInfo.

Shader/core clocks still look a bit sus in HWInfo but I don't currently see a reason to doubt its temp readouts.

remekra said:
I just started to wonder. Is 30 degrees delta between edge and hotspot something to worry about? Like I wrote before I have Gaming OC model from Gigabyte and running it at 400W. Hotspot reaches 85-87, but the edge is 57-60. It's not throttling and theoretically in spec, but I'm just wondering about the difference between the two.

EDIT

Also was wondering about mounting it vertically with Cooler Master kit (PCIE 4.0), just for the looks, but question is will it worsen the performance of cooling, it has a vapor chamber. I have NZXT H7 Flow so plenty of space between the glass and the GPU, also have 3 fans in the front and 360 AIO up top and one fan for exhaust.
Click to expand...

Vertical mounting universally performed better in terms of the XTX vapor chamber issue, so idk why it would worsen cooling. In a case though, it's hard to make a fair comparison because you introduce additional airflow factors.

Hotspot seems to be more of a concern of Nvidia where GPU Boost starts reducing clocks at a certain temp threshold. Still not sure whether it internally uses edge or hotspot for that.

25-27° seems ok, perhaps just got a bit unlucky compared to the review samples.
 
tabascosauz said:
Radeon Software also doesn't monitor VRAM temps, or any voltage on any rail (core, soc, 2 x mem, etc). HWInfo isn't always right but like Ryzen Master, Radeon Software is sorely lacking for monitoring.

If you've ever watched any Gamersnexus CPU cooler review and their cooler pressure mapping imaging, quality control sucks and the same contact issues apply to GPU coolers. The Navi31 die might be close to flat, but the baseplate on the cooler sure isn't.

The I/O die is not in the center. The GCD is. The 6 MCDs are closer in function to the Ryzen I/O die, and flank the GCD. Each of those dies has its own hotspot reading in HWInfo.

Shader/core clocks still look a bit sus in HWInfo but I don't currently see a reason to doubt its temp readouts.



Vertical mounting universally performed better in terms of the XTX vapor chamber issue, so idk why it would worsen cooling. In a case though, it's hard to make a fair comparison because you introduce additional airflow factors.

Hotspot seems to be more of a concern of Nvidia where GPU Boost starts reducing clocks at a certain temp threshold. Still not sure whether it internally uses edge or hotspot for that.

25-27° seems ok, perhaps just got a bit unlucky compared to the review samples.
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I'm just wondering if the improvement from mounting MBA version vertically comes just from that design or is it universal to vapour chambers designs.
 
The 7900XTX cannot run Deus Ex: Mankind Divided in 4K maxed out with MSAA 8x. The built-in benchmark recorded 18 fps average, and 44 fps with MSAA 4x. Oh well, at least some gains can be had in the power consumption department, when limiting the frame rate to 60 fps without MSAA:

4k.jpg
4k60.jpg


TBP is 119 W lower for 34% power savings on average. Edge temp is 10 C down, and hotspot 15 C down. So far I'm quite impressed with the thermal performance of the reference cooler. The fans haven't gone over 1720 rpm in my testing, though admittedly my room is a cool 20 C now.
 
remekra said:
I'm just wondering if the improvement from mounting MBA version vertically comes just from that design or is it universal to vapour chambers designs.
Click to expand...

Heatpipe coolers don't just randomly suffer a penalty from vertical mounting either. I just came off a TUF and it performed the same vertically on the bench, just warmer at idle due to fan stop and a lack of case fans blowing directly at it. All coolers these days have perpendicular fins so vertical mounting encourages the air to go where it's designed to go (up)

But as vertical mounting in a case, the more pertinent question is the airflow you have. How efficiently can you get rid of the exhaust coming off the top of the card? How much clearance to the glass pane? Are you creating any stagnant areas of hot air in front of the card/below the card? Any bottom fans below the card? etc.
 
I wonder why anyone needs MSAA 8X on 4K. 4K is supposed to be the best in pixel density and clarity and wouldn't need AA at all or just a bit.
 
HD64G said:
I wonder why anyone needs MSAA 8X on 4K. 4K is supposed to be the best in pixel density and clarity and wouldn't need AA at all or just a bit.
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Ultra ultra ultra res?! Shrug, I'm glad I am not alone thinking wtaf a 4k image would need MSAA anything.

I gets no jaggies at 4k they're my nemesis too.
 
Hello!

I just received my Merc RX 7900 XTX.

I'm glad that everything work well. Fit in my case nicely (NZXT S340 elite)

https://imgur.com/rFm6IOZ


Here is my OC :

500 - 3080 Mhz
1090 mV
VRAM 2750Mhz
+15%

https://imgur.com/Ya9RwwL

Time Spy Score : 25.004
Graphic Score : 32 683
CPU : 10 725.

https://imgur.com/D6ACLpf

I'm very glad with the card.
No issues at all with drivers or anything.
It's a little bit noisy at 100% load,I have to tweak a little bit the curve.

And my CPU is not OC yet. I'm a newbi ^^'

Thank you very much to the community for your help.
 
hope you dont use your pc to make some coffe XD XFX cards are so nice. I have 6900xt and love it
 
moicestkarl said:
Hello!

I just received my Merc RX 7900 XTX.

I'm glad that everything work well. Fit in my case nicely (NZXT S340 elite)

https://imgur.com/rFm6IOZ


Here is my OC :

500 - 3080 Mhz
1090 mV
VRAM 2750Mhz
+15%

https://imgur.com/Ya9RwwL

Time Spy Score : 25.004
Graphic Score : 32 683
CPU : 10 725.

https://imgur.com/D6ACLpf

I'm very glad with the card.
No issues at all with drivers or anything.
It's a little bit noisy at 100% load,I have to tweak a little bit the curve.

And my CPU is not OC yet. I'm a newbi ^^'

Thank you very much to the community for your help.
Click to expand...
Glad that you are happy! Any coil whine? What are the temps and fan speed?

I'm still messing with my Gigabyte model. Settled on 1110mv, 500-3000MHz, +10% PL (400W) and 2700MHz on memory with Fast Timings, stable no matter what I throw at it.
But I am still not sure about fan speed. If I set it on max 65% (~2200RPM) it reaches 86-88 degrees on hotspot, but it is a little loud. With max 50% (~1900RPM) it is audible but not much but hotspot temps rises to 90-93 depending on the load. Think I'm gonna run it with 50% as 93 max is still within spec, clocks are the same, performance as well and if it breaks down the line then there is always warranty.
 
Well after exchaning to my currency those are priced similary in Europe (Poland) after of course adding 23% VAT. Is there a sales tax in Canada?

And 4xxx are well above that.
 
remekra said:
Well after exchaning to my currency those are priced similary in Europe (Poland) after of course adding 23% VAT. Is there a sales tax in Canada?

And 4xxx are well above that.
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15%
 
tabascosauz said:
holy moly these prices suck, $1600-1700 is 4080 territory

$30 shipping

What is up with RX7000 pricing in Canada? All of the deals so far have been on Amazon
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Nope Distributors know better than users what performance are. You still have to add another $200 for a 4080

www.newegg.ca

4080 | Newegg.ca

Search Newegg.ca for 4080. Get fast shipping and top-rated customer service.
www.newegg.ca www.newegg.ca

kapone32 said:
Nope Distributors know better than users what performance are. You still have to add another $200 for a 4080

www.newegg.ca

4080 | Newegg.ca

Search Newegg.ca for 4080. Get fast shipping and top-rated customer service.
www.newegg.ca www.newegg.ca
Click to expand...
The best deal is the 7900XT for $1299. The 4070Ti is about $100 cheaper.
 
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