AMD Radeon RX 6800M vs AMD Radeon RX Vega M GH

VS

AMD Radeon RX 6800M

AMD Radeon RX Vega M GH

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 6800M and 4GB VRAM Radeon RX Vega M GH to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800M 's Advantages

Released 3 years and 3 months late

Boost Clock has increased by 101% (2390MHz vs 1190MHz)

More VRAM (12GB vs 4GB)

Larger VRAM bandwidth (384.0GB/s vs 204.8GB/s)

1024 additional rendering cores

AMD Radeon RX Vega M GH 's Advantages

Lower TDP (100W vs 145W)

Score

Benchmark

FP32 (float)

Radeon RX 6800M +234%

12.24 TFLOPS

Radeon RX Vega M GH

3.656 TFLOPS

Radeon RX 6800M

VS

Radeon RX Vega M GH

Graphics Card

May 2021

Release Date

Feb 2018

Mobility Radeon

Generation

Vega

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

IGP

Clock Speeds

2116 MHz

Base Clock

1063 MHz

2390 MHz

Boost Clock

1190 MHz

2000 MHz

Memory Clock

800 MHz

Memory

12GB

Memory Size

4GB

GDDR6

Memory Type

HBM2

192bit

Memory Bus

1024bit

384.0GB/s

Bandwidth

204.8GB/s

Render Config

40

Compute Units

24

-

2560

Shading Units

1536

160

TMUs

96

64

ROPs

64

-

40

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

3 MB

L2 Cache

1024 KB

96 MB

L3 Cache

-

Theoretical Performance

153.0 GPixel/s

Pixel Rate

76.16 GPixel/s

382.4 GTexel/s

Texture Rate

114.2 GTexel/s

24.47 TFLOPS

FP16 (half)

3.656 TFLOPS

12.24 TFLOPS

FP32 (float)

3.656 TFLOPS

764.8 GFLOPS

FP64 (double)

228.5 GFLOPS

Board Design

145W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Navi 22

GPU Name

Polaris 22

Navi 22 XTM

GPU Variant

VegaM XT (C7398773)

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

7 nm

Process Size

14 nm

17.2 billion

Transistors

5 billion

335 mm²

Die Size

208 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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