AMD Radeon RX 6800M vs AMD Radeon RX 580 Mobile

VS

AMD Radeon RX 6800M

AMD Radeon RX 580 Mobile

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 6800M and 8GB VRAM Radeon RX 580 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800M 's Advantages

Released 4 years and 1 months late

Boost Clock has increased by 122% (2390MHz vs 1077MHz)

More VRAM (12GB vs 8GB)

Larger VRAM bandwidth (384.0GB/s vs 256.0GB/s)

256 additional rendering cores

AMD Radeon RX 580 Mobile 's Advantages

Lower TDP (100W vs 145W)

Score

Benchmark

FP32 (float)

Radeon RX 6800M +146%

12.24 TFLOPS

Radeon RX 580 Mobile

4.963 TFLOPS

Radeon RX 6800M

VS

Radeon RX 580 Mobile

Graphics Card

May 2021

Release Date

Apr 2017

Mobility Radeon

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

2116 MHz

Base Clock

1000 MHz

2390 MHz

Boost Clock

1077 MHz

2000 MHz

Memory Clock

2000 MHz

Memory

12GB

Memory Size

8GB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

256bit

384.0GB/s

Bandwidth

256.0GB/s

Render Config

40

Compute Units

36

-

2560

Shading Units

2304

160

TMUs

144

64

ROPs

32

-

40

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

3 MB

L2 Cache

2 MB

96 MB

L3 Cache

-

Theoretical Performance

153.0 GPixel/s

Pixel Rate

34.46 GPixel/s

382.4 GTexel/s

Texture Rate

155.1 GTexel/s

24.47 TFLOPS

FP16 (half)

4.963 TFLOPS

12.24 TFLOPS

FP32 (float)

4.963 TFLOPS

764.8 GFLOPS

FP64 (double)

310.2 GFLOPS

Board Design

145W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Navi 22

GPU Name

Polaris 20

Navi 22 XTM

GPU Variant

Polaris 20M XT

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

7 nm

Process Size

14 nm

17.2 billion

Transistors

5.7 billion

335 mm²

Die Size

232 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.2

-

6.5

Shader Model

6.4

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