NVIDIA GeForce RTX 3080 vs AMD Radeon RX 6900 XTX

VS

NVIDIA GeForce RTX 3080 AMD Radeon RX 6900 XTX

We compared two Desktop platform GPUs: 10GB VRAM GeForce RTX 3080 and 16GB VRAM Radeon RX 6900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 's Advantages

Larger VRAM bandwidth (760.3GB/s vs 576.0GB/s)

3584 additional rendering cores

Lower TDP (320W vs 330W)

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock has increased by 42% (2435MHz vs 1710MHz)

More VRAM (16GB vs 10GB)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 +19%

29.77 TFLOPS

Radeon RX 6900 XTX

24.93 TFLOPS

GeForce RTX 3080

VS

Radeon RX 6900 XTX

Graphics Card

Sep 2020

Release Date

Unknown

GeForce 30

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1440 MHz

Base Clock

2075 MHz

1710 MHz

Boost Clock

2435 MHz

1188 MHz

Memory Clock

2250 MHz

Memory

10GB

Memory Size

16GB

GDDR6X

Memory Type

GDDR6

320bit

Memory Bus

256bit

760.3GB/s

Bandwidth

576.0GB/s

Render Config

68

SM Count

-

Compute Units

80

8704

Shading Units

5120

272

TMUs

320

96

ROPs

128

272

Tensor Cores

-

68

RT Cores

80

128 KB (per SM)

L1 Cache

128 KB per Array

5 MB

L2 Cache

4 MB

Theoretical Performance

164.2 GPixel/s

Pixel Rate

311.7 GPixel/s

465.1 GTexel/s

Texture Rate

779.2 GTexel/s

29.77 TFLOPS

FP16 (half)

49.87 TFLOPS

29.77 TFLOPS

FP32 (float)

24.93 TFLOPS

465.1 GFLOPS

FP64 (double)

1.558 TFLOPS

Graphics Processor

GA102

GPU Name

Navi 21

GA102-200-KD-A1

GPU Variant

Navi 21 XTXH (215-121000247)

Ampere

Architecture

RDNA 2.0

Samsung

Foundry

TSMC

8 nm

Process Size

7 nm

28.3 billion

Transistors

26.8 billion

628 mm²

Die Size

520 mm²

Board Design

320W

TDP

330W

700 W

Suggested PSU

700 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

1x 12-pin

Power Connectors

2x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.3

8.6

CUDA

-

6.6

Shader Model

6.5

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