Wednesday, April 24, 2024

AMD RX 6950 XT vs. Nvidia RTX 3090: Flagship showdown

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AMD has a new flagship in town: the mighty RX 6950 XT. Our AMD RX 6950 XT review shows that it’s an excellent gaming graphics card that excels with its low price. Nvidia’s competing flagship, the RTX 3090, is much more expensive. We threw both cards into the ring to see if Nvidia’s premium is worth it.

Contents

  • Pricing and availability
  • Specs
  • Performance
  • Two paths

For gamers, the answer is no. If you want to do more than gaming, though, Nvidia’s GPU offers features that the RX 6950 XT just can’t compete with.

Pricing and availability

Jacob Roach / Digital Trends

Nvidia launched the RTX 3090 launched on September 24, 2020, for a list price of $1,500. Due to inflated GPU prices, cards sell for a little more than that in 2022. At the time of writing, we found cards in stock between $1,700 and $2,000 (as well as plenty of RTX 3090 Ti models around the $2,000 mark).

AMD’s RX 6950 XT is much newer, launching on May 10, 2022. It’s significantly cheaper, too. The list price is only $1,100, and we found multiple models in stock at that price. AMD’s cards haven’t seen the steep price increases that Nvidia’s have, so we expect the RX 6950 XT will continue to sell for around $1,100.

Even being generous to the RTX 3090, there’s about a $500 difference in price. At the extreme, that jumps to a $900 difference, which is enough money to build a whole new PC. Although the RX 6950 XT has some weaknesses, it’s hard ignoring the value it offers compared to the RTX 3090. It’s newer, cheaper, and more readily available, so the RX 6950 XT easily wins this section.

Specs

Jacob Roach / Digital Trends

It’s not useful comparing specs between AMD and Nvidia — they use different architectures, so core counts and clock speeds mean essentially nothing when put side-by-side. However, there are some significant differences when it comes to power and memory, as you can see in the chart below. I also included specs for the base RX 6900 XT for reference.

RX 6950 XT
RTX 3090
RX 6900 XT
GPU
Navi 21
GA102
Navi 21
Interface
PCIe 4.0 x16
PCIe 4.0 x16
PCIe 4.0 x16
CUDA cores/stream processors
5,120
10,496
5,120
Tensor cores
N/A
328
N/A
Ray tracing cores/accelerators
80
82
80
Base clock
1,925MHz
1,395MHz
1,825MHz
Boost clock
2,324MHz
1,695MHz
2,250MHz
Memory
16GB GDDR6
24GB GDDR6X
16GB GDDR6
Bandwidth
576GB/s
936.2GB/s
512GB/s
Memory bus
256-bit
384-bit
256-bit
TDP
335W
350W
300W

Starting with power, only 15 watts separate the RX 6950 XT and RTX 3090 on paper. In practice, AMD’s card rarely goes above its 335W limit, while the RTX 3090 can climb to 400W when pushed. These are both power-hungry cards, so make sure to pair them with one of the best PC power supplies.

For memory, the RTX 3090 comes with 8GB more than the RX 6950 XT, which doesn’t make a difference when gaming. The bigger difference is that the RTX 3090 uses GDDR6X memory, which is much faster and increases memory bandwidth by around 62% compared to the RX 6950 XT. That’s despite the faster GDDR6 modules on the RX 6950 XT, which boosts bandwidth over the base model by 12.5%.

That might seem like a slam dunk for the RTX 3090, but it depends on what you’re using the card for. In gaming, the extra bandwidth does effectively nothing. However, in memory-intensive tasks like complicated 3D rendering and data science, memory bandwidth means everything. In those tasks, the RTX 3090 is a clear winner.

Performance

You can see how the RX 6950 XT and RTX 3090 stack up with our average above. Overall, AMD’s card leads by about 4% at 4K in our suite of games, which is massively impressive considering its price. In raw frame rates without ray tracing, the RX 6950 XT is the pick for gaming performance.

The devil is in the details, though. In the table below, you can see that Nvidia’s card still leads in Red Dead Redemption 2 and Cyberpunk 2077. It leads massively in ray tracing, too. Nvidia has much better ray tracing performance this generation, and the RX 6950 XT doesn’t change that. The RTX 3090 also has access to Nvidia Deep Learning Super Sampling (DLSS), but it could face some competition from FidelityFX Super Resolution 2.0 (FSR 2.0) soon.

RX 6950 XT
RTX 3090
3DMark Time Spy 
18,611
17,078
3DMark Fire Strike
42,692
37,380
Red Dead Redemption 2
73 fps
75 fps
Fortnite
80 fps
69 fps
Assassin’s Creed Valhalla
68 fps
63 fps
Forza Horizon 4
165 fps
153 fps
Cyberpunk 2077
42 fps
46 fps
Cyberpunk 2077 w/ RT
12 fps
21 fps
Far Cry 6
89 fps
82 fps

It depends on the games you play and the features you want access to. Although the RTX 3090 has features like DLSS and better ray tracing, it still underperforms compared to the RX 6950 XT in the vast majority of games. And it’s significantly more expensive, running as much as $900 above AMD’s card.

Beyond gaming, the RTX 3090 shines. Nvidia cards have access to CUDA and Optix rendering, which make them much better for GPU-intensive tasks like Blender. The increased memory bandwidth on the RTX 3090 helps a lot for data science tasks, blowing away the RX 6950 XT across the board.

RX 6950 XT
RTX 3090
PugetBench for Premiere Pro
658
882
Blender Classroom
589
1,394
Blender Monster
1,144
2,826
Blender Junkshop
557
1,615

The RX 6950 XT isn’t a bad option for these tasks, but it’s clearly built for gaming first. If you’re concerned with content creation and non-gaming workloads primarily, stick with the RTX 3090.

On the other hand, gamers shouldn’t feel the need to spend up for Nvidia’s GPU. Although it wins in some benchmarks, the RX 6950 XT performs better and represents a much better value, despite its shortcomings with ray tracing and upscaling.

Two paths

Jacob Roach / Digital Trends

There isn’t a definitive winner in this comparison because there’s too much that separates the RX 6950 XT from the RTX 3090. Gamers should stick with AMD’s card due to its higher average performance and much more attractive price. However, the RTX 3090 shoots ahead with better memory bandwidth and content creation performance, even if it carries a higher price tag.

The lack of non-gaming features may be a deal breaker, and that’s what this comparison comes down to. If price is a concern, we recommend looking at the RTX 3080 Ti if you need access to Nvidia’s features but can’t stomach the price tag of the RTX 3090. For everyone else, stick with the RX 6950 XT.

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