Google software engineer @Osvaldo Doederlein has just discovered that AMD Radeon RX 7900 XTX cards lose nearly half of their scores when using the latest version of 3DMark for Time Spy testing.

UL / 3DMark developers have confirmed that about 3% of users may currently be affected by the issue, but the company was unable to reproduce the problem internally. AMD appears to have internally reproduced the issue, which is presumably a driver issue, so now affected gamers will have to “roll back to a previous version or wait for a future driver fix”.

3DMark officially also gave an example, as shown in the figure below. From the results, the Ryzen 9 5900X with RX 7900 XTX can run 24587 points under the old version of the driver, but only 12861 points after the upgraded driver, which is nearly 48% less.

▲ 3DMark Time Spy with Radeon RX 7900 XTX (old and new drivers), source: 3DMark / Osvaldo Doederlein

Of course, the 3DMark running score bug does not seem to be a common problem at present, and most players will not run smoothly, so it does not need to be too urgently fixed for the time being, but it is definitely something that Radeon users should pay attention to.

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The document is published by the Korean National Radio Research Institute, but the manufacturer is listed as “ATI TECHNOLOGIES ULC”. Most likely in order to delay public notification of the discovery, AMD acquired ATI Technologies more than 20 years ago.

The model numbers listed on the new RRA are shown in the screenshot below:

"Two model numbers have been confirmed, the D702 and D704, to be the AMD Radeon RX 7900 XTX and Radeon RX 7900 XT respectively. AMD hasn't confirmed anything new, so we can only guess at the rest of the models."

Considering that there are seven graphics board IDs, these may be brand new RDNA 3 products. So far, AMD has only launched its high-end Navi 31 GPU, which means that desktop users will see Navi 32 and Navi 33 products later this year. While AMD didn’t confirm any new variants beyond the laptop lineup utilizing the Navi 33 SKU, it’s possible we could get a range of GPUs in the RX 7800, RX 7700, and RX 7600 models.

New laptops based on AMD’s new graphics chips will be released soon, and they will take advantage of the Radeon RX 7600 and 7700 GPUs, corresponding to the Navi 33 GPU. It is also possible that one of the models listed may be for a mobile platform or an enterprise model. Now AMD really needs to provide some new cards in the mainstream field, because the RTX 40 series of the biggest rival NVIDIA is getting better and better.

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The AMD Radeon RX 7900 XTX and Radeon RX 7900 XT graphics cards are based on the Navi 31 GPU of the RDNA 3 architecture, with a single GCD of 48 WGPs, 96 computing units, 12 SAs, and 6 SEs. 7399 CNY.

Scott Herkelman, senior vice president and general manager of AMD Radeon Graphics, previously stated that there are only a few Radeon RX 7900 XTX graphics cards with radiator storage problems, but many players simply don’t believe it, and said that the problem is bigger than what he said. severe and extensive.

According to an internal report obtained by Igor Wallossek, AMD Partners on the Board (AIB) said that 9% to 11% of users have now requested the recall. Additionally, information from system integrators (SIs) and finished PC makers seems more concerning, with more than 10% of graphics cards in their inventory affected.

In addition, Wallossek also shared a letter from AMD indicating that it is currently unable to honor all RMA recall requests, although Herkelman previously made it clear that replacements are always available to users.

"We can feel your desire to replace the RX 7900 XTX. However, we are currently unable to provide you with a replacement as we have completely run out of stock in our warehouse. We'll start the RMA process as soon as it restocks, but unfortunately we don't have an exact arrival date at this time.

If you would like a refund, we can process it for you immediately and will provide you with a return label so you can send the card back."

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According to reports, the driver released by AMD last month is optimized for the power consumption of the RX 7900 series when playing video. Before optimization, the RX 7900 XT consumes 71W to play YouTube videos, and the RX 7900 XTX GPU consumes 81W. After optimization, the power consumption of the two cards is reduced to 46W and 54W respectively, which is still not as good as the RTX 4080 (34W) or the Radeon RX 6900 XT (30W).

In addition, foreign media ComputerBase found that the game power consumption of the RX 7900 under the new driver has also been optimized, but only in scenes where the frame rate is limited.

As shown above, in the Doom Eternal game at 1440p resolution, the RX 7900 XTX is 57% more efficient (down 90W) and the RX 7900 XT is 34% more efficient (down 57W) with the new driver when the frame rate is limited to 144fps. When the frame rate is not limited, there is no significant change in power consumption between the two cards under the old and new drivers.

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To recap, a few weeks ago we heard that some AMD Radeon RX 7900 XTX MBA (Made By AMD) reference models (public versions) were experiencing thermal issues involving the GPU heating up, with sensors reading up to 110 degrees Celsius.

der8auer wanted to discover the cause of the high temperatures, so he purchased four Radeon RX 7900 XTX cards to perform some tests. It turned out that the mounting orientation had an effect on the test results, with horizontal mounting increasing the temperature by 20 degrees, but the overheating problem reappeared only a minute after the burn-in test began.

The overclocker also investigated factors such as the heatsink’s weight and gravity to see if they affected the high temperatures. He used a specially designed brace to confirm that these factors were not part of the problem. Mounting pressure was also ruled out by removing the radiator, removing the support bracket and shortening the standoffs by 1.5mm.

That leaves one theory: a problem with the heat pipe, which could be related to the material choice or a design flaw, might be preventing water from returning to the other end after condensation. He didn’t have time to disassemble the cavity for further investigation but may do so in a future video.

Overheating didn’t affect every single Radeon RX 7900 XTX reference card. However, a defect within the heat pipe could mean the problem is more widespread than initially realized, and could affect more users than NVIDIA’s melted 16-pin 12VHPWR adapter issue.

AMD said last week that it was aware of an issue with its RX 7900 XTX reference cards. It advises users who experience accidental bumps into temperature walls to contact AMD support services.

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In the previous report “Radeon RX 7900XTX users asked for a refund on the grounds that the temperature exceeded 110°C, AMD refused: the temperature is normal”, the user requested a refund on the grounds that the temperature exceeded 110°C, but AMD believes that this temperature is Normal, no refund.

On the Reddit community, another netizen recently applied for a replacement with the same problem, but AMD’s reply was to provide a refund, but not to support the replacement, which may be due to the shortage of this graphics card.

In the press release, AMD only asked affected users to contact after-sales service but did not give a specific solution.

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The configuration of the test platform is:

Intel Core i9-13900K

2x 16GB DDR5-6000 CL36

AMD Radeon RX 6800 XT

AMD Radeon RX 7900 XTX

Solidigm P44 Pro 2TB PCIe 4.0 SSD

Microsoft Windows 11 Pro 22621

Ubuntu 22.10 (Linux kernel version 6.2-rc1)

The games tested in this test include:

Hitman 3

Left 4 Dead 2

Portal 2

Quake II RTX

Strange Brigade

Flight simulation game “X-Plane 12”

testing software:

GravityMark 1.72

Unigine Heaven 4.0

Unigine Superposition 1.0

As the picture shows, there is a large performance gap between Ubuntu and Windows 11 on the newer Radeon RX 7900XTX graphics card. In this case, the Windows 11 PC was about 11.1% faster than the Linux one. Meanwhile, on the 6800 XT PC, Microsoft’s operating system was about 6.27 percent better.

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It appears that the entire AMD GPU is activated when running these tasks, not just the media engine block and the display processing block. Or maybe there’s something wrong with the processor performance state.

Today, AMD released the latest WHQL adrenaline driver version 22.12.2, which fixes the high power consumption issue with video playback, but the high power consumption issue with multiple monitors remains.

The issues fixed in this release are.

Problems could be encountered when using Virtual Super Resolution with multi-monitor configurations.

A system crash could occur when changing display modes in a 4-monitor configuration.

When loading Marvel’s Spider-Man: Miles Morales with ray tracing settings enabled, an application crash or driver timeout could occur.

Improved power consumption during hardware-accelerated video playback, with further power efficiency improvements planned for a future release.

In the meantime, the following issues are known.

High idle power was sometimes observed when using selected high-resolution and high-refresh-rate displays.

Intermittent application crashes or driver timeouts may occur when using Radeon Super Resolution and some extended monitor configurations.

Video lag or performance degradation may be observed during gaming and video playback with some extended monitor configurations.

Stuttering may occur during the opening of Mysterious Seas 4: A Thief’s End games.

Application crashes or driver timeouts may occur when playing Valheim with the Vulkan API. Anyone who may experience these issues should choose the DirectX API as a temporary workaround.

Some virtual reality games or applications may perform below expectations.

Users can download the new 22.12.2 driver from AMD’s website.

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Judging from the renderings, the graphics card has a complete non-princess board design with three 8-pin power connectors. This is a common trait of all the premium RX 7900 XTX models we’ve seen so far. In addition, there is a dual BIOS switch, but there is no complete specification information on the graphics card at present.

Gigabyte is still preparing a Gaming OC graphics card. The graphics card is relatively affordable in terms of price, 2.5 slots thick, with a triple-fan heatsink and dual 8-pin power connectors. Interestingly, this model will also get a dual BIOS feature. Gigabyte will launch the Gaming OC series of RX 7900 XTX and RX 7900 XT graphics cards.

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