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1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsShort answer: the Radeon RX 7900 XTX is AMD’s stronger high-end choice for traditional rasterized gaming, large texture-heavy workloads and DisplayPort 2.1/AV1 media features. The RX 7900 XT delivers the same RDNA 3 platform at a lower launch price, but with fewer compute units, less VRAM and lower performance. Both cards are markedly less competitive when ray tracing is the priority: Tom’s Hardware’s December 2022 launch testing found Nvidia’s GeForce RTX 4080 substantially faster in DXR games.
RX 7900 XTX vs. RX 7900 XT: the essential differences
AMD launched both cards on December 13, 2022, positioning the XTX as the flagship and the XT as the less expensive model. The specifications show where the price gap comes from.
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| Specification | Radeon RX 7900 XTX | Radeon RX 7900 XT |
|---|---|---|
| Compute units | 96 | 84 |
| Memory | 24 GB GDDR6 | 20 GB GDDR6 |
| Memory interface | 384-bit | 320-bit |
| Launch total board power | 355 W | 300 W |
| U.S. launch SEP | $999 | $899 |
| Availability announced by AMD | December 13, 2022 through AMD.com; board partners followed in mid-December | December 13, 2022 through AMD.com; board partners followed in mid-December |
The XTX’s extra 12 compute units, 4 GB of additional VRAM and wider memory bus give it more headroom for demanding raster workloads. The XT remains a full-size high-end GPU, but its 20 GB memory pool and narrower 320-bit interface are the first compromises to appear when comparing the two.
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What RDNA 3 adds
Chiplet-based GPU design
AMD describes RDNA 3 as a chiplet-based architecture rather than a single large monolithic die. Both cards include hardware ray-tracing acceleration and support AMD’s FidelityFX technologies and Radeon Super Resolution for image upscaling and reconstruction.
#1 Best Overall
- Flagship Gaming Performance, AMD Radeon RX 7900 XTX GPU with 2615 MHz boost clock and 24GB GDDR6 memory for elite 4K gaming
- Advanced RDNA 3 Architecture, 96 compute units with RT+AI accelerators and 96MB AMD Infinity Cache technology
- Premium Cooling Solution, Phantom Gaming 3X Cooling System with Striped Ring Fans and reinforced metal frame
- High-Speed Memory, 24GB GDDR6 on 384-bit memory bus delivers exceptional bandwidth for 4K gaming and content creation
- Silent Operation, 0dB Silent Cooling technology ensures zero fan noise during low-intensity tasks
DisplayPort 2.1 and AV1 media engines
The RX 7900 series adds DisplayPort 2.1, making the cards suitable for newer high-resolution, high-refresh displays that expose the standard’s greater bandwidth. AMD also equips the cards with dual media engines supporting AV1 encoding and decoding. That combination matters for creators and streamers who need modern codec support as well as gaming performance; it is not merely a frame-rate specification.
Gaming performance in the launch review
Rasterization is the strength
Tom’s Hardware’s December 2022 review found impressive rasterization performance from both cards. In conventional games that do not rely heavily on ray-traced effects, the XTX is the faster option and the XT follows closely enough to remain a high-end alternative. The review’s overall conclusion was positive about RDNA 3’s traditional rendering performance.
Those results are launch-review measurements from 2022, not a current comparison against every newer GPU or driver. Game patches, drivers and retail pricing can change the value calculation.
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Ray tracing is where the cards lose ground. In Tom’s Hardware’s 1440p ray-tracing suite, the RX 7900 XTX averaged 60 frames per second, while the RX 7900 XT averaged just over 50 frames per second. In the same testing, the GeForce RTX 4080 was 33% faster overall and reached advantages of roughly 50–60% in some games.
Rank #2
- System Compatibility Note: This 2‑slot card measures 249 mm (L) x 132 mm (W) x 41 mm (H) and requires a single 8‑pin power connector. Please verify available chassis clearance and ensure your power supply is rated for a recommended 550W before purchase.
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- Next‑Gen AMD RDNA 4 Architecture: Powered by the AMD Radeon RX 9060 XT GPU with 32 Compute Units featuring 3rd Gen Ray Tracing and 2nd Gen AI Accelerators, delivering exceptional 1440p gaming and AI‑enhanced performance.
- Blazing‑Fast Engine Clock: Delivers a boost clock of up to 3290 MHz and a game clock of 2700 MHz out of the box, providing the raw power for smooth, high‑framerate gameplay.
- 16GB GDDR6 Memory on 128‑Bit Bus: Equipped with 16GB of high‑speed GDDR6 memory running at 20 Gbps, offering ample capacity and bandwidth for modern game textures and creative applications.
That is a substantial architectural and software disadvantage for a buyer who expects to enable intensive DXR effects. AMD’s cards are faster at ray tracing than the previous generation, but the launch review still characterized ray tracing as a second-class area for RDNA 3. Nvidia’s DLSS ecosystem was also cited as a continuing advantage in supported games.
Power use and acoustics
AMD rates the XTX at 355 W TBP and the XT at 300 W TBP. Tom’s Hardware used Powenetics hardware and software, looping Metro Exodus and running FurMark to measure board behavior.
| Launch-review measurement | RX 7900 XTX | RX 7900 XT |
|---|---|---|
| FurMark power | Approximately 366 W | Slightly above the test’s 315 W rating |
| Noise after 30 minutes of Metro Exodus | 49.9 dB(A) | 48.7 dB(A) |
The measured FurMark figures are stress-test results, not a promise that every game will draw the same power. They do show that a suitable power supply, case airflow and cooling setup are important, especially for the XTX. The XT was marginally quieter in this particular 30-minute Metro Exodus run, but neither result should be treated as universal for every board-partner cooler.
Which card should you choose?
Choose the RX 7900 XTX when raster performance and VRAM come first
- You want AMD’s fastest RDNA 3 raster performance.
- You expect large texture budgets or other workloads that benefit from 24 GB of GDDR6.
- You need the wider 384-bit memory interface.
- You can accommodate a 355 W launch TBP and the higher measured stress-test draw.
- DisplayPort 2.1 and AV1 encode/decode are useful to your display or creator workflow.
At its $999 U.S. launch SEP, the XTX was the flagship rather than a budget product. Its value depends on the current street price and the games you play; those figures were not established by the 2022 launch review.
Rank #3
- Axial-tech fans now feature a smaller fan hub that facilitates longer blades and a barrier ring that increases downward air pressure
- Phase-change GPU thermal pad helps ensure optimal heat transfer, lowering GPU temperatures for enhanced performance and reliability
- 2.5-slot design allows for greater build compatibility while maintaining cooling performance
- Dual-ball fan bearings last up to twice as long as standard conventional sleeve bearings designs
- 0dB technology lets you enjoy light gaming in relative silence
Choose the RX 7900 XT when the $899 launch position is more important
- You want the RDNA 3 feature set but do not need the XTX’s 24 GB memory capacity.
- Your games are primarily rasterized and the XT’s lower performance is acceptable.
- You prefer the lower 300 W launch TBP.
- You can save money versus the XTX at the actual price available to you.
The XT is not simply a cut-down mainstream card: 84 compute units and 20 GB of GDDR6 still place it in the high-end class. Its main weakness relative to the XTX is the reduced performance and memory headroom, not a missing RDNA 3 feature.
Consider an RTX 4080 instead if ray tracing is central
The launch-review results make the decision straightforward for a ray-tracing-first buyer. The RTX 4080’s 33% overall lead in the 1440p ray-tracing suite, with larger advantages in some games, is difficult for either Radeon card to overcome. Nvidia’s DLSS support in the tested ecosystem further strengthens that choice where compatible titles are a priority.
Availability and how to read these results today
AMD announced availability through AMD.com on December 13, 2022, with named board partners scheduled to follow in mid-December. The specification and benchmark figures in this review belong to that launch period. Current stock, retail prices, driver behavior and performance against GPUs released later are variable and are not represented by those 2022 measurements.
Use the launch data to understand the products’ design and trade-offs: the XTX is the faster, higher-memory raster card; the XT is the lower-power, lower-price sibling; and Nvidia retains a clear ray-tracing advantage in the cited test suite.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
