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AMD Radeon RX 6900 XT 16GB vs NVIDIA GeForce RTX 2080 Super 8GB

The Radeon RX 6900 XT delivers 3% more FP16 throughput than the GeForce RTX 2080 Super (46 vs 45 TFLOPS dense). The Radeon RX 6900 XT also carries 8 GB more memory (16 GB vs 8 GB).

Radeon RX 6900 XT: RDNA 2, 2020 GeForce RTX 2080 Super: Turing, 2019
FP16 dense lead
+3%
Radeon RX 6900 XT: 46 vs 45 TFLOPS
Memory
16 vs 8 GB
8 GB more for the Radeon RX 6900 XT
Bandwidth
512 GB/s vs 496 GB/s
Radeon RX 6900 XT moves data faster
TDP
300 W vs 250 W
GeForce RTX 2080 Super draws 50 W less
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AMD Radeon RX 6900 XT 16GB vs NVIDIA GeForce RTX 2080 Super 8GB

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AMD Radeon RX 6900 XT 16GB

Leads on FP16 Full specs →

What is the AMD Radeon RX 6900 XT?

The Radeon RX 6900 XT is a GPU from AMD on the RDNA 2 architecture, an accelerator for AI training, inference and high-performance computing. It is a PCIe add-in card, so it fits standard servers and workstations. Radeon RX 6900 XT full specifications →

Can I rent the Radeon RX 6900 XT in the cloud?

Flopper is not tracking any live rental listings for the Radeon RX 6900 XT yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the Radeon RX 6900 XT compare with other accelerators?

This page sets the Radeon RX 6900 XT against the GeForce RTX 2080 Super. The Radeon RX 6900 XT is the newer generation of the two. This is a cross-vendor matchup, AMD against NVIDIA, and both ship as a PCIe card, so they fit the same class of system. The compare tool builds the same comparison for any two parts in the catalogue. All GPU comparisons →

Where do the Radeon RX 6900 XT figures come from?

Every Radeon RX 6900 XT figure on this page traces to AMD's own datasheet or specification table. How Flopper verifies specifications →

NVIDIA GeForce RTX 2080 Super 8GB

Full specs →

What is the NVIDIA GeForce RTX 2080 Super?

The GeForce RTX 2080 Super is a GPU from NVIDIA on the Turing architecture, an accelerator for AI training, inference and high-performance computing. It is a PCIe add-in card, so it fits standard servers and workstations. GeForce RTX 2080 Super full specifications →

Can I rent the GeForce RTX 2080 Super in the cloud?

Flopper is not tracking any live rental listings for the GeForce RTX 2080 Super yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the GeForce RTX 2080 Super compare with other accelerators?

This page sets the GeForce RTX 2080 Super against the Radeon RX 6900 XT. The GeForce RTX 2080 Super is the older generation of the two. This is a cross-vendor matchup, NVIDIA against AMD, and both ship as a PCIe card, so they fit the same class of system. The compare tool builds the same comparison for any two parts in the catalogue. All GPU comparisons →

Where do the GeForce RTX 2080 Super figures come from?

Every GeForce RTX 2080 Super figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

Specifications

Radeon RX 6900 XT
GeForce RTX 2080 Super
Architecture
RDNA 2Turing
Launch Year
20202019
Form Factor
PCIePCIe
Memory
16 GB8 GB
Memory Bandwidth
512 GB/s496 GB/s
TDP
300 W250 W
Process Node
7nm12nm

Performance (TFLOPS)

Radeon RX 6900 XT
GeForce RTX 2080 Super
No verified data available0.3 TFLOPS
23 TFLOPS 11 TFLOPS
No verified data available No verified data available
No verified data available No verified data available
46 TFLOPS 45 TFLOPS
No verified data available No verified data available
FP6
No verified data available No verified data available
No verified data available No verified data available
No verified data available178 TOPS

Figures are dense. Where a vendor publishes a figure it sits under the dense one and never decides a winner. Hover any precision for its definition, or read the GPU glossary.

FLOPS by Precision

What actually differs

The Radeon RX 6900 XT is the newer part: RDNA 2 (2020) against the GeForce RTX 2080 Super's Turing (2019).

The Radeon RX 6900 XT carries 8 GB more memory (16 GB against 8 GB), so larger models fit on one GPU before you shard. Bandwidth is 512 GB/s against 496 GB/s, which sets the ceiling on decode speed.

Power is 300 W against 250 W, and at FP32 the Radeon RX 6900 XT does more work per watt. Weight the FP8 and FP16 rows for LLM work and the FP64 row for HPC.

New to the terms? The glossary explains FP64, FP32, FP16, INT8, Sparsity and TFLOPS. For how the generations relate, see NVIDIA architectures explained.

Frequently asked questions

Is the Radeon RX 6900 XT faster than the GeForce RTX 2080 Super?

At FP16 precision the Radeon RX 6900 XT reaches 46 TFLOPS dense against 45 TFLOPS for the GeForce RTX 2080 Super. The performance table on this page lists every published precision for both GPUs.

Which should you choose, the Radeon RX 6900 XT or the GeForce RTX 2080 Super?

Choose the Radeon RX 6900 XT for training and high-throughput inference: it has 3% more FP16 throughput than the GeForce RTX 2080 Super. It also carries 8 GB more memory, so larger models fit on one GPU before you shard. The Radeon RX 6900 XT draws 50 W more power, so budget for cooling and power delivery before you commit.

Which has more memory, the Radeon RX 6900 XT or the GeForce RTX 2080 Super?

The Radeon RX 6900 XT carries 16 GB of memory versus 8 GB for the GeForce RTX 2080 Super. Memory bandwidth is 512 GB/s for the Radeon RX 6900 XT and 496 GB/s for the GeForce RTX 2080 Super.

How much power do the Radeon RX 6900 XT and the GeForce RTX 2080 Super draw?

The Radeon RX 6900 XT is rated at 300 W TDP and the GeForce RTX 2080 Super at 250 W. On FP32 throughput per watt, the Radeon RX 6900 XT is the more efficient part.

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