The Radeon RX 7900 XT(X) Owners Thread.

LtMatt · 14 Dec 2022 at 09:33

smeemi said:
why do you need a 4090 and a 7900 xtx? lol

Because it is important to balance out the force of the 4090 with some AMD flavour.

Only way you can truly compare is to own both, first hand experience is priceless IMO.

rare said:
Dude how the heck did you manage to get one for £999! Argh!

Another retailer was selling them at that price (they sold out quickly) but they listed them later than OcuK. I had an order in with OcuK too but cancelled before it was dispatched.

ProStreet · 14 Dec 2022 at 09:34

LtMatt said:
Because it is important to balance out the force of the 4090 with some AMD flavour.

Only way you can truly compare is to own both, first hand experience is priceless IMO.

Another retailer was selling them at that price (they sold out quickly) but they listed them later than OcuK. I had an order in with OcuK too but cancelled before it was dispatched.

Give you £999 for the 4090

LtMatt · 14 Dec 2022 at 09:35

Okay, let's get some parliamentary procedure going on here please owners.

Can all 7900 XTX / XT owners please make sure to post the stock max frequency core clock your sample comes with as shown in AMD Software > Tuning menu.

Example below, mine is 3105. I'd like to know if all have this core clock, or does yours have higher/lower?

smeemi said:
Give you £999 for the 4090

How about, no.

tommybhoy · 14 Dec 2022 at 10:07

LtMatt said:
And here we go, snagged one at £999. For the owners list please @Kaapstad.

I believe we now equal the total number of 4080 owners on OcuK forums.

It cost half the price of my 4090 and it is literally half the size.

Was the Gamerock assembled in a sandwich press?

gupsterg · 14 Dec 2022 at 10:19

LtMatt said:
Okay, let's get some parliamentary procedure going on here please owners.

Can all 7900 XTX / XT owners please make sure to post the stock max frequency core clock your sample comes with as shown in AMD Software > Tuning menu.

Example below, mine is 3105. I'd like to know if all have this core clock, or does yours have higher/lower?

You had to be first! :cry:

Oh why oh why?!

The LOLs of fresh GPU cravings! :cry:

LtMatt · 14 Dec 2022 at 10:29

gupsterg said:
You had to be first!

Oh why oh why?!

The LOLs of fresh GPU cravings!

I know right! Funny thing was I didn’t even pick an early delivery slot, not that this retailer offered an early slot this time.

gupsterg · 14 Dec 2022 at 10:32

How's whine? Just wondering is Gibbo gonna see a lot of return cos of his post

LtMatt · 14 Dec 2022 at 10:38

I am currently testing the 7900 XTX, with some tuning it is nipping at the heels of my stock 4090 in Far Cry 6 at 4K max settings, at just 335W.

Woodsta888 · 14 Dec 2022 at 10:44

LtMatt said:
I am currently testing the 7900 XTX, with some tuning it is nipping at the heels of my stock 4090 in Far Cry 6 at 4K max settings, at just 335W.

Guru3D had it beating the 4090

AMD Radeon RX 7900 XTX review

The flagship Radeon RX 7900 XTX is in the house, powered by new rDNA3 GPU architecture and paired with 24 GB of graphics memory. The card is pitted against the GeForce RTX 4080 and manages to keep up ... Far Cry 6

www.guru3d.com

LtMatt · 14 Dec 2022 at 10:48

Woodsta888 said:
Guru3D had it beating the 4090

AMD Radeon RX 7900 XTX review

The flagship Radeon RX 7900 XTX is in the house, powered by new rDNA3 GPU architecture and paired with 24 GB of graphics memory. The card is pitted against the GeForce RTX 4080 and manages to keep up ... Far Cry 6

www.guru3d.com

I don't think Guru3D have RT enabled.

My 4090 is also tuned though and has been repasted using liquid metal and is also running a 660W BIOS vs a 335W and stock paste on the 7900 XTX.

varkanoid · 14 Dec 2022 at 10:48

LtMatt said:
And here we go, snagged one at £999.

I just knew it you little tinker.

varkanoid · 14 Dec 2022 at 10:50

LtMatt said:
I am currently testing the 7900 XTX, with some tuning it is nipping at the heels of my stock 4090 in Far Cry 6 at 4K max settings, at just 335W.

Whats it like idling is this 150w idle power actually true ?

@Kaapstad WTH ?

Date 32/12/2022, Make 4080 Killer, Captain AMD, Link

gupsterg · 14 Dec 2022 at 11:01

varkanoid said:
Whats it like idling is this 150w idle power actually true ?

See this post.

TPU hit the Power Consumption Testing details:-

Multi-monitor: Two monitors are connected to the tested card, and both use different display timings. One monitor runs 2560x1440 over DisplayPort, and the other monitor runs 3840x2160 over HDMI.

varkanoid · 14 Dec 2022 at 11:30

gupsterg said:
See this post.

TPU hit the Power Consumption Testing details:-

I was after a "real world" test.

Jay-G25 · 14 Dec 2022 at 11:31

LtMatt said:
I am currently testing the 7900 XTX, with some tuning it is nipping at the heels of my stock 4090 in Far Cry 6 at 4K max settings, at just 335W.

What we really want to know is were the HUB results in MW2 real or an anomaly :cry:

I expect this will do good in Far Cry 6 as the 6900XT was trading blows with the 3090 as it prefers AMD

LtMatt · 14 Dec 2022 at 12:19

Jay-G25 said:
What we really want to know is were the HUB results in MW2 real or an anomaly I expect this will do good in Far Cry 6 as the 6900XT was trading blows with the 3090 as it prefers AMD

I'll work on that next, using the Extreme preset and Competitive settings.

I chose Far Cry 6 as the built in benchmark is quick and reliable and accurately represents in game performance.

I am running the latest build of Windows 11, with both the AMD and Nvidia drivers installed on my setup. They work perfectly in harmony too, :cry:

. My system is clean and tuned for optimal performance with minimal background apps running, aside from MSI AB/HWINFO64 and Corsair iCUE (bit of a perf hog iCue but my AIO needs it).

The 4090 is running 527.56, ReBar is at auto setting. The 4090 was run at stock settings and has been repasted using liquid metal. It therefore runs cooler by 5c+ vs normal 4090 GameRocks, the core also moves up a bin due to the lower temperatures. I am using a special performance BIOS that unlocks the power limit up to 660W (stock is 550W) and allows more performance from the 4090 vs the stock BIOS shipped with the GPU. In light of this I will set the power limit to 80% of 550W = 450W to best mimic a true stock 4090. The 4090 was run with 100% fan speed for these tests.

For the 7900 XTX, I installed the 22.12.1 driver. SAM is at auto setting. The 7900 XTX is using the stock thermal paste. The 7900 XTX is limited to a maximum power limit of 335W, it is not possible to raise it further. So the only way to extract more performance is to increase the power limit to +15% which allows up to 335W, and to then lower voltage and finally increase memory frequency. This will net you best overall increase in performance in pure % terms. The 7900 XTX was run with 100% fan speed for these tests.

Far Cry 6 is running at 4K maximum settings, however a couple of effects (blur etc) were disabled. Actual settings used see screenshots below (so you can copy my settings to validate performance if interested).

4090 GameRock OC
Stock (450W BIOS) 1.050mv

4090 GameRock OC
Overclocked (660W BIOS) 1.100v

7900 XTX MBA
Stock (335W BIOS) 0% Power Limit

7900 XTX MBA +15 Power Limit
Stock (335W BIOS)

7900 XTX MBA +15 Power Limit -50mv Voltage
Stock (335W BIOS)

7900 XTX MBA +15 Power Limit -75mv Voltage
Stock (335W BIOS)

7900 XTX MBA +15 Power Limit -100mv Voltage
Stock (335W BIOS)

7900 XTX MBA +15 Power Limit -125mv Voltage
Stock (335W BIOS)

7900 XTX MBA +15 Power Limit -150mv Voltage
Stock (335W BIOS)

7900 XTX MBA +15 Power Limit -175mv Voltage
Stock (335W BIOS)

GAME CRASHED JUST BEFORE THE END OF THE BENCHMARK

7900 XTX MBA +15 Power Limit +2598Mhz Memory -150mv Voltage
Stock (335W BIOS)

7900 XTX MBA +15 Power Limit +2698Mhz Memory -150mv Voltage
Stock (335W BIOS)

7900 XTX MBA +15 Power Limit +2798Mhz Memory -150mv Voltage
Stock (335W BIOS)

GAME CRASHED JUST BEFORE THE END OF THE BENCHMARK

7900 XTX MBA +15 Power Limit +2778Mhz Memory -150mv Voltage
Stock (335W BIOS)

Final result, 18% performance increase from the stock MBA configuration. Note, even with -150mv, we are still power limited 100% of the time. AIB cards with a higher power limit should be able to extra more performance but for MBA boards, this is as good as you can expect. A nice improvement over stock performance.

Next up, I will test Modern Warfare 2 and maybe a couple of other games. However, I'll only be testing stock and max stable overclocks in future games now I have things dialled in.

Woodsta888 · 14 Dec 2022 at 12:23

LtMatt said:
I don't think Guru3D have RT enabled.

My 4090 is also tuned though and has been repasted using liquid metal and is also running a 660W BIOS vs a 335W and stock paste on the 7900 XTX.

I guess we all know AMD haven't caught up with RT just yet, and for most, pure raster is still how we still measure performance apples to apples.

So you have the XTX on the heels of the 4090 with RT on?

Saw you FC6 benchmark the other day - ran mine and saw you had 10% over my stock scores though your CPU probably eeks a little more out than my X3D can. That a game stable bench or just stable for the bench itself? Impressive either way.

LtMatt · 14 Dec 2022 at 12:28

Woodsta888 said:
I guess we all know AMD haven't caught up with RT just yet, and for most, pure raster is still how we still measure performance apples to apples.

So you have the XTX on the heels of the 4090 with RT on?

Saw you FC6 benchmark the other day - ran mine and saw you had 10% over my stock scores though your CPU probably eeks a little more out than my X3D can. That a game stable bench or just stable for the bench itself? Impressive either way.

My 4090 is running way above stock performance to be honest due to the things I mentioned above.

Based on my 4090, it is marginally faster in FC6 at 4K max settings with RT - when overclocked. However the AIB 7900 XTX should catch it up as they will have higher power limits.

The 4090 is faster overall. I can't see how an AMD GPU could compete with a 660W 4090, but the 7900 XTX should have no trouble handling the 4080 in most things.

LtMatt · 14 Dec 2022 at 12:34

@varkanoid Both my 4090 and 7900 XTX have coil whine, they sound fairly similar. Audible with the side panel off, otherwise not too bad.

Kaapstad · 14 Dec 2022 at 12:39

LtMatt said:
And here we go, snagged one at £999. For the owners list please @Kaapstad.

I believe we now equal the total number of 4080 owners on OcuK forums.

It cost half the price of my 4090 and it is literally half the size.

Welcome and on TOL.

The Owners List.

Date 14/12/2022, Make MBA XTX, LtMatt, Link

To get on The Owners List all you have to do is post a pic with your user name on it of your Radeon RX 7900 XT(X).