The RX 6900 XT is the stronger gaming card, roughly 20-40% faster than the RTX 4060 Ti in raster at 1440p and further ahead at 4K, so it is the better pick for high-refresh 1440p and entry 4K if your PSU and case can handle a 300 W, 3-slot card; the RTX 4060 Ti makes more sense for compact or lower-power builds and for players who lean on DLSS upscaling and frame generation, ideally in its 16 GB version.
This comparison pits a former flagship against a current-era mid-range card. In 2026 both are mostly found used or as leftover stock, which is exactly why people compare them: a used former flagship can land in the same price range as a newer mid-ranger.
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Specifications Compared
| Spec | RX 6900 XT | RTX 4060 Ti 8GB | RTX 4060 Ti 16GB |
|---|---|---|---|
| Architecture | RDNA 2.0 | Ada Lovelace | Ada Lovelace |
| Release date | 28 October 2020 | 18 May 2023 | 18 May 2023 |
| Launch MSRP | Check on Amazon | Check on Amazon | Check on Amazon |
| Shading units | 5120 | 4352 | 4352 |
| Boost clock | 2250 MHz | 2535 MHz | 2535 MHz |
| Process | 7 nm | 5 nm | 5 nm |
| TDP | 300 W | 160 W | 165 W |
| Memory | 16 GB GDDR6 | 8 GB GDDR6 | 16 GB GDDR6 |
| Memory bus | 256-bit | 128-bit | 128-bit |
| Bandwidth | 512.0 GB/s | 288.0 GB/s | 288.0 GB/s |
| Cache | 4 MB L2 + 128 MB L3 | 32 MB L2 | 32 MB L2 |
| Interface | PCIe 4.0 x16 | PCIe 4.0 x8 | PCIe 4.0 x8 |
| Power connectors | 2x 8-pin | 1x 16-pin | 1x 16-pin |
| Length / width | 267 mm, 3-slot | 240 mm, 2-slot | 240 mm, 2-slot |
| Display outputs | 1x HDMI 2.1, 2x DP 1.4a, 1x USB-C | 1x HDMI 2.1, 3x DP 1.4a | 1x HDMI 2.1, 3x DP 1.4a |
The RX 6900 XT has a 256-bit bus, 512 GB/s and a 128 MB Infinity Cache, compared with the RTX 4060 Ti’s 128-bit bus and 288 GB/s backed by a 32 MB L2. The NVIDIA card is far more efficient, but the AMD card simply has a much larger chip to work with.
Raster Gaming: The Old Flagship Still Leads
TechPowerUp’s review data places the RTX 4060 Ti around RTX 3070 level in raster, and found the 16 GB model only 0-2% faster than the 8 GB model when VRAM is not a limit. The RX 6900 XT sits several tiers higher in the same charts. Aggregator comparisons give a range of about 12-25% in favor of the RX 6900 XT at 1440p, while review data that places the 4060 Ti near an RTX 3070 implies a gap toward the upper end or beyond. A fair summary is roughly 20-40% at 1440p, depending on the game suite, and a wider margin at 4K, where the 4060 Ti’s narrow bus becomes a real bottleneck.
- 1080p: both are fast; CPU limits compress the gap in many titles.
- 1440p: the RX 6900 XT is the clear high-refresh card; in a demanding game where the 4060 Ti averages around 60-70 FPS at High, the 6900 XT tends to sit around 80-90 FPS. Figures vary with settings, CPU and patch.
- 4K: the RX 6900 XT can handle many games at High with upscaling; the 4060 Ti is not designed for this resolution.
Ray Tracing and the DLSS Factor
Ray tracing narrows the race considerably. TechPowerUp’s launch coverage found the RTX 4060 Ti’s ray tracing performance roughly in line with an RX 6800 XT, which is just one step below the RX 6900 XT. In practice, ray-traced games run at similar frame rates on both cards, with the 6900 XT ahead in lighter RT titles and the 4060 Ti competitive or ahead in heavier ones.
Once upscaling and frame generation enter the picture, the RTX 4060 Ti has the edge in features:
- DLSS super resolution, including the DLSS 4 transformer model, generally delivers better image quality than FSR 3.1 at the same internal resolution.
- DLSS frame generation is supported on RTX 40 cards. RTX 50-exclusive Multi Frame Generation is not available, but 2x frame generation is.
- The RX 6900 XT uses FSR 3.1 upscaling and FSR 3 frame generation, plus AMD Fluid Motion Frames 2 at the driver level. FSR 4 is officially RDNA 4 only, so it is not available on this card.
VRAM: Why the 16 GB 4060 Ti Matters Here
The RX 6900 XT has 16 GB, enough for any current game at 1440p and most at 4K. The 8 GB RTX 4060 Ti can run out of memory in recent releases at High textures even at 1080p, and frame generation itself adds VRAM pressure. Because the 4060 Ti uses PCIe 4.0 x8, overflow hurts more on PCIe 3.0 motherboards. If the 4060 Ti is the choice, the 16 GB version is the one that holds up; the 8 GB model is hard to recommend against a 16 GB 6900 XT.
Power, PSU Sizing and Case Fit
This is the RX 6900 XT’s biggest drawback. Sizing as GPU TDP plus CPU plus about 150 W headroom, with a 125 W CPU:
- RX 6900 XT: 300 + 125 + 150 = 575 W, so a quality 750 W unit is the sensible target, leaving room for transient spikes typical of high-end RDNA 2 cards.
- RTX 4060 Ti: 160-165 + 125 + 150 = about 440 W, so a quality 550 W unit is plenty.
The RX 6900 XT reference card uses two 8-pin connectors and is a 3-slot, 267 mm design; many partner cards are larger. The RTX 4060 Ti reference spec lists a single 16-pin connector at 240 mm and 2 slots, although many partner 4060 Ti cards use a standard 8-pin, so check the specific model. In a small case with modest airflow, the 4060 Ti’s 160-165 W is far easier to cool quietly than 300 W.
Value Check With Used Prices
Launch MSRPs are irrelevant to buyers today. Raster value favors the AMD card; feature value and running cost favor NVIDIA. A 140 W difference over 20 hours of gaming per week adds up to roughly 145 kWh per year, a modest but real cost in high-tariff regions.
Used RX 6900 XT cards are often several years old, so check for stable clocks, fan noise and hotspot temperatures. Ex-mining cards are common in this tier.
Decision Table
| Your priority | Pick |
|---|---|
| Highest 1440p raster frame rate for the money | RX 6900 XT |
| Entry 4K gaming | RX 6900 XT |
| Small case, 550 W PSU, quiet operation | RTX 4060 Ti 16GB |
| DLSS image quality and frame generation | RTX 4060 Ti 16GB |
| Tight budget, 1080p only | RTX 4060 Ti 8GB, with texture settings managed |
| Want a warranty and current features | Consider an RTX 5060 Ti 16GB or RX 9060 XT 16GB instead |
Frequently Asked Questions
Is the RX 6900 XT faster than the RTX 4060 Ti?
Yes, in traditional raster games. Published review data puts it roughly 20-40% ahead at 1440p, with a larger lead at 4K. In ray-traced games the two are much closer.
Which is better for ray tracing, RX 6900 XT or RTX 4060 Ti?
They are close. TechPowerUp’s data places the RTX 4060 Ti’s ray tracing near an RX 6800 XT, just below the 6900 XT. With DLSS upscaling and frame generation enabled, the 4060 Ti often delivers smoother results in RT-heavy games.
What power supply does the RX 6900 XT need?
A quality 750 W unit is a safe target with a typical gaming CPU. The card has a 300 W TDP and uses two 8-pin connectors on the reference design, and it can draw brief spikes above its rated power.
Is the 8 GB RTX 4060 Ti enough against a 16 GB RX 6900 XT?
It is the weaker choice. Recent games can exceed 8 GB at High textures, which causes stutter and texture pop-in. The 16 GB RTX 4060 Ti is the version that holds up for longer.
Does the RX 6900 XT support FSR 4?
No, FSR 4 is officially limited to RDNA 4 graphics cards. The RX 6900 XT supports FSR 3.1 upscaling, FSR 3 frame generation and AMD Fluid Motion Frames 2.
