AMD Radeon RX 6800 XT vs NVIDIA GeForce RTX 5080

VS

AMD Radeon RX 6800 XT NVIDIA GeForce RTX 5080

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 16GB VRAM GeForce RTX 5080 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 XT 's Advantages

Larger VRAM bandwidth (512.0GB/s vs 160.0GB/s)

Lower TDP (300W vs 350W)

NVIDIA GeForce RTX 5080 's Advantages

Released 4 years and 3 months late

Boost Clock has increased by 12% (2520MHz vs 2250MHz)

6144 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6800 XT

20.74 TFLOPS

GeForce RTX 5080 +161%

54.19 TFLOPS

Radeon RX 6800 XT

VS

GeForce RTX 5080

Graphics Card

Oct 2020

Release Date

Jan 2025

Navi II

Generation

GeForce 50

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

1825 MHz

Base Clock

2235 MHz

2250 MHz

Boost Clock

2520 MHz

2000 MHz

Memory Clock

2500 MHz

Memory

16GB

Memory Size

16GB

GDDR6

Memory Type

GDDR7

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

160.0GB/s

Render Config

-

SM Count

84

72

Compute Units

-

4608

Shading Units

10752

288

TMUs

336

128

ROPs

128

-

Tensor Cores

336

72

RT Cores

84

128 KB per Array

L1 Cache

128 KB (per SM)

4 MB

L2 Cache

64 MB

Theoretical Performance

288.0 GPixel/s

Pixel Rate

322.6 GPixel/s

648.0 GTexel/s

Texture Rate

846.7 GTexel/s

41.47 TFLOPS

FP16 (half)

54.19 TFLOPS

20.74 TFLOPS

FP32 (float)

54.19 TFLOPS

1296 GFLOPS

FP64 (double)

846.7 GFLOPS

Graphics Processor

Navi 21

GPU Name

GB203

Navi 21 XT (215-121000177)

GPU Variant

GB203

RDNA 2.0

Architecture

Blackwell 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

0 nm

26.8 billion

Transistors

Unknown

520 mm²

Die Size

Unknown

Board Design

300W

TDP

350W

700 W

Suggested PSU

750 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 16-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

9.1

6.5

Shader Model

6.7

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