AMD Radeon RX 6900 XT vs NVIDIA GeForce GTX 1080 11Gbps

VS

AMD Radeon RX 6900 XT

NVIDIA GeForce GTX 1080 11Gbps

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XT and 8GB VRAM GeForce GTX 1080 11Gbps to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XT 's Advantages

Released 3 years and 6 months late

Boost Clock has increased by 30% (2250MHz vs 1733MHz)

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (512.0GB/s vs 352.3GB/s)

2560 additional rendering cores

NVIDIA GeForce GTX 1080 11Gbps 's Advantages

Lower TDP (180W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XT +159%

23.04 TFLOPS

GeForce GTX 1080 11Gbps

8.873 TFLOPS

Radeon RX 6900 XT

VS

GeForce GTX 1080 11Gbps

Graphics Card

Oct 2020

Release Date

Apr 2017

Navi II

Generation

GeForce 10

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1825 MHz

Base Clock

1607 MHz

2250 MHz

Boost Clock

1733 MHz

2000 MHz

Memory Clock

1376 MHz

Memory

16GB

Memory Size

8GB

GDDR6

Memory Type

GDDR5X

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

352.3GB/s

Render Config

80

Compute Units

-

SM Count

20

5120

Shading Units

2560

320

TMUs

160

128

ROPs

64

-

80

RT Cores

-

128 KB per Array

L1 Cache

48 KB (per SM)

4 MB

L2 Cache

2 MB

128 MB

L3 Cache

-

Theoretical Performance

288.0 GPixel/s

Pixel Rate

110.9 GPixel/s

720.0 GTexel/s

Texture Rate

277.3 GTexel/s

46.08 TFLOPS

FP16 (half)

138.6 GFLOPS

23.04 TFLOPS

FP32 (float)

8.873 TFLOPS

1440 GFLOPS

FP64 (double)

277.3 GFLOPS

Board Design

300W

TDP

180W

700 W

Suggested PSU

450 W

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

Outputs

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Navi 21

GPU Name

GP104

Navi 21 XTX (215-121000167)

GPU Variant

GP104-410-A1

RDNA 2.0

Architecture

Pascal

TSMC

Foundry

TSMC

7 nm

Process Size

16 nm

26.8 billion

Transistors

7.2 billion

520 mm²

Die Size

314 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

6.1

6.5

Shader Model

6.4

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