AMD Radeon Pro Vega 20 vs AMD Radeon RX 6800M

VS

AMD Radeon Pro Vega 20 AMD Radeon RX 6800M

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro Vega 20 and 12GB VRAM Radeon RX 6800M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro Vega 20 's Advantages

Lower TDP (100W vs 145W)

AMD Radeon RX 6800M 's Advantages

Released 2 years and 6 months late

Boost Clock has increased by 86% (2390MHz vs 1283MHz)

More VRAM (12GB vs 4GB)

Larger VRAM bandwidth (384.0GB/s vs 189.4GB/s)

1280 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro Vega 20

3.284 TFLOPS

Radeon RX 6800M +272%

12.24 TFLOPS

Radeon Pro Vega 20

VS

Radeon RX 6800M

Graphics Card

Nov 2018

Release Date

May 2021

Radeon Pro Mac

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

815 MHz

Base Clock

2116 MHz

1283 MHz

Boost Clock

2390 MHz

740 MHz

Memory Clock

2000 MHz

Memory

4GB

Memory Size

12GB

HBM2

Memory Type

GDDR6

1024bit

Memory Bus

192bit

189.4GB/s

Bandwidth

384.0GB/s

Render Config

-

SM Count

-

20

Compute Units

40

1280

Shading Units

2560

80

TMUs

160

32

ROPs

64

-

Tensor Cores

-

RT Cores

40

16 KB (per CU)

L1 Cache

128 KB per Array

1024 KB

L2 Cache

3 MB

Theoretical Performance

41.06 GPixel/s

Pixel Rate

153.0 GPixel/s

102.6 GTexel/s

Texture Rate

382.4 GTexel/s

6.569 TFLOPS

FP16 (half)

24.47 TFLOPS

3.284 TFLOPS

FP32 (float)

12.24 TFLOPS

205.3 GFLOPS

FP64 (double)

764.8 GFLOPS

Graphics Processor

Vega 12

GPU Name

Navi 22

Vega 12 XTA

GPU Variant

Navi 22 XTM

GCN 5.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

7 nm

Unknown

Transistors

17.2 billion

Unknown

Die Size

335 mm²

Board Design

100W

TDP

145W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Features

12 (12_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.3

-

CUDA

-

6.3

Shader Model

6.5

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